x402 AI API
x402 AI APIs: inference, generation, and model endpoints that accept x402 payments. Agents can discover, price, and call these services per request with no signup, paying onchain via the HTTP 402 flow.
AI SERVICES ── 162 total ── for live status visit /status
STATUS ── ● online · ◐ degraded · ○ offline · ─ unknown ── live health, see /status.
VOL 30D and BUYERS 30D are a measured 30d floor across listed services, not an ecosystem total; an unmeasured service is not counted as zero.
·sh = shared payout address; volume attributed pro-quota (buyers left whole).
| STATUS | NAME | DESCRIPTION | EP | FROM $/REQ | UPTIME · DAILY ROLLUP | VOL 30D | BUYERS 30D | NETWORKS |
|---|---|---|---|---|---|---|---|---|
| ● | ContextIQ | ContextIQ is an Agentic Commerce & Context Engineering tooling company. | 14 | $0.02 | 100.00% | $2 | 5 | BSE |
| ● | Arch Tools | 63 AI-agent tools behind one API: per-call USDC via x402 v2 on Base and 8 more chains, prepaid credits, and an MCP endpoint (https://archtools.dev/mcp). | 50 | $0.01 | 100.00% | $2 | 15 | BSE/POL |
| ● | YiduoChan API Credits | Prepaid credits and pay-per-call inference for MiniMax models over x402. Pay USDC on Base or Arbitrum and receive a working OpenAI-compatible API key in the response — no account, email or signup. Serves MiniMax-M2.7 and M2.7-highspeed for general chat, agent loops and coding; MiniMax-M3 for long-context reasoning with a 1,048,576-token window; speech-2.8-hd and speech-2.8-turbo for audio; MiniMax-H3 for video. Text, audio and video all draw on the same balance. Both x402 v1 and v2 are accepted. Tiers from $0.10, or pay per call from $0.01. | 5 | $0.01 | 100.00% | $0 | 0 | ARB/BSE |
| ● | Cogito-Reflex: Cognitive Regulation as a Service | Cognitive regulation API for autonomous agents. Free first session via our MCP server (one per identity), then $0.10 USDC per 300s session via x402 on Base. Reduce agent entropy, break loops, distill session lessons — a cognitive reset for agents facing infinite loops, context saturation, goal drift, cascading errors or burnout. Pay-per-use, no subscription. | 1 | $0.10 | 100.00% | $0.70 | 4 | BSE |
| ● | Transcribe — audio to transcript, subtitles and a cut list | Send audio as base64 bytes in the request body, or as an https URL, and get back the transcript, ready-made WebVTT subtitles, and an editor's cut list marking every stretch of dead air and how much shorter the result would be. Flat $0.02 per request, whatever the file — no per-MB component. Sources up to 800 KB: base64 is measured decoded, a URL is measured from the source's own content-length rather than anything the caller declares. No account, no API key and no upload step — if you are holding the audio, you can buy. A 4xx settles nothing and costs you nothing, but a file that turns out to hold no clear speech IS still billed: the transcription ran either way, and the reply says so in noSpeech, lowConfidence, warning and note. | 1 | $0.05 | 100.00% | $0.002 | 1 | BSE |
| ● | Kortex Service Trust | Before paying an x402 service you have never used, ask whether it works. Kortex answers from evidence rather than description: uptime measured over time, whether the endpoint returns a valid 402, and how many distinct wallets have actually paid its address on-chain. | 3 | $1.00 | 100.00% | $5 | 3 | BSE |
| ● | StableBrowser | Remote browser sessions for AI agents, priced at 0.10 USDC on Base per session. Once a session is created, actions on it (navigate, act, extract, observe, screenshot) are included. Built on Browserbase and Stagehand. | 1 | $0.10 | 100.00% | $11 | 18 | BSE |
| ● | PayBox Agent Tools | Three deterministic one-cent USDC utilities for AI agents: prompt-injection and secret-exfiltration risk scanning, canonical JSON profiling with SHA-256 fingerprints, and tabular data-quality profiling. | 3 | $0.01 | 100.00% | $0.01 | 1 | BSE/SOL |
| ● | PitchPilot Outreach API | 12 x402-paid B2B outreach endpoints for AI agents: email deliverability audit, email grading, cold-email template generation, domain age, plus commodity micro-tools (hash, uuid, slug, json, jwt, regex, weather, crypto price). Free previews at /hash-preview and /score-preview, zero-wallet. | 12 | $0.001 | 100.00% | $0.004 | 2 | BSE |
| ◐ | Jobero job search | Paid job search for agents: send a candidate profile and CV, get 7 matched roles back, each with a tailored CV and cover letter. Pay per search in USDC on Base via x402 (exact scheme, EIP-3009), or buy a credit pack. Also reachable as an MCP server at https://jobero.ai/mcp, where start_job_search speaks the x402 MCP transport. | 3 | $2.50 | 100.00% | $10 | 1 | BSE |
| ● | Floyd Coding Agent | Autonomous coding agent: send a task description and an optional GitHub repo, and it analyzes the code, implements the change and opens a pull request. Priced at $0.50 USDC per task. | 1 | $0.50 | 100.00% | $0.81 ·sh | 34 | BSE/SOL |
| ● | sleepfix | One sleepfix, 58 seconds. Finds the habit stealing your deep sleep and returns a personalized AI fix. Settles in USDC on Base Sepolia and returns a licence plus a play link. | 2 | --- | 100.00% | --- | --- | BSP |
| ● | Aura Agent Persistence | Gives an autonomous agent a real email address that receives verification codes, its own webhook URL, durable memory across runs, and the ability to block on an event or park state and exit without burning tokens. One x402 deposit buys prepaid credit that is debited off-chain per call. | 3 | $1.00 | 100.00% | $0 | 0 | BSE |
| ● | Snapfix | Outcome-verified image transformation API: image plus natural-language instruction in, verified transformed image out. $0.05 per transform, x402 on Base, no account or API key. | 1 | $0.005 | 100.00% | $0.07 | 3 | BSE |
| ● | witnessd | A neutral witness for the machine-readable web. Pay $0.02 USDC to have any URL or API response independently fetched, hashed, timestamped and archived by a third party, Merkle-anchored on Base hourly. Certified evidence retrieval ($0.05) for agent-commerce disputes. Certificates verify for free — by anyone, without trusting us. | 3 | $0.02 | 100.00% | $0.67 | 5 | BSE |
| ● | Agent402.tools | Catalog of pay-per-call HTTP tools for AI agents: web search, browser rendering, PDF and OCR, crypto and stock data, SEC EDGAR filings, plus an OpenAI compatible LLM gateway. Paid in USDC via x402 on Base and other chains, with some tools available free through proof of work. | 10 | $0.005 | 100.00% | $139 | 245 | ARB/AVX/BSE/POL/SOL |
| ● | Ask Cairn | Paid answers from Cairn, a fully disclosed autonomous AI agent running a public experiment at cairnwake.com. Pay 1.5 USDC via the x402 exact scheme on Solana (or 0.02+ SOL with a memo) and the question gets a researched answer plus a permanent page in the agent public record. The same rail sells x402 conformance reports (25 USDC: hostile-payload battery, one real settlement with the agent own USDC, permanent ed25519-signed report) and commissioned sealed-prediction experiments (100-500 USD by scope). Every payment and answer is on-chain and public. | 1 | $1.50 | 100.00% | $0 | 0 | SOL |
| ● | MiroShark | Runs a 25-agent social-media simulation across Twitter, Reddit and Polymarket over 10 rounds from a prompt, URL or article, then returns a markdown report with belief drift, top posts and prediction-market trajectories. | 1 | $1.00 | 100.00% | $12 | 7 | BSE/SOL |
| ● | minia2a — Agent Infrastructure & Intelligence | x402-native API platform for AI agents: web scraping with real browser, crypto market intelligence, knowledge storage & recall, x402 service discovery across 25K+ endpoints, and data transformation. 80+ endpoints via x402 on Base. | 4 | $0.50 | 100.00% | $30 | 14 | BSE |
| ● | Gondola | Pay-per-request LLM inference over x402. 263 models on Venice AI supply, including uncensored lines. OpenAI-compatible chat and images plus Anthropic messages. Each request routes to the cheapest supplier and the 402 challenge quotes the exact price. Overpayment banks as reusable credit for the paying wallet. | 3 | $0.01 | 100.00% | $0.09 | 6 | BSE |
| ● | BluSky Sentinel | AI-powered smart contract bytecode auditing, proxy detection, and DEX swap honeypot simulation for autonomous AI agents on Base. | 2 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | EVA MCP | Ask Eva: the autonomous research desk for crypto, DeFi and global markets, from the Everything.inc ecosystem. Eva is a multi-step AI agent that writes and runs code over live, institutional-grade data instead of guesswork: real-time prices, TVL, volumes, open interest, funding rates, liquidations, order-book depth, on-chain flows, news and sentiment. One paid call runs the ask tool and returns a plain-text answer. | 1 | $0.01 | 100.00% | $0 | 0 | ARB/BSE |
| ● | Old2New Agent API | Recipe transformation and recipe-photo generation API for dietary restrictions and health goals. | 2 | $0.10 | 100.00% | $10 | 1 | BSE |
| ● | AIScan | AI visibility auditing for websites, pay-per-capability via x402 on Base. 15 endpoints: cheap HTTP checks (llms.txt, Schema.org, MCP discoverability) from 0.06 USDC, full category scores (AEO, GEO, Agent Readiness, MCP Readiness) 0.15-0.20, complete 80+ check audit 0.35, copy-paste fix generation 0.55, competitor gap analysis 0.80. The only scanner with MCP Readiness scoring. Free capability catalog at /api/agent/index. | 15 | $0.06 | 100.00% | $0 | 0 | BSE |
| ● | PostOpz Framework Agent API | Professional Avid Media Composer post-production workflow knowledge sold to autonomous agents through x402 v2 micropayments on Base. | 3 | $0.35 | 100.00% | $2 | 1 | BSE |
| ● | x402vid — AI Intelligence for YouTube Videos | YouTube intelligence rail: 18 paid tools ($0.01-$1.00 USDC on Base via x402) — transcripts, AI-ranked search, niche/shorts/thumbnail/channel reports — plus OpenAI-compatible answers at POST /api/v1/chat/completions ($0.05, model x402vid-youtube). Free health_check and video_preview taster. | 4 | $0.01 | 100.00% | $19 | 4 | BSE |
| ● | Aubrai x402 API | Paid access to the Aubrai longevity research agent (VitaDAO/BIO): chat and scientific literature synthesis, including HPKE encrypted variants routed to a Tinfoil confidential compute enclave. | 4 | $0.02 | 100.00% | $45 | 5 | BSE |
| ● | The Nervous System (agent governance x402 API) | External governance layer for agent systems by Levels Of Self. Pay-per-call over x402: audit-chain verification, MCP config audit, legal-prep, bookkeeping. USDC on Base, no signup. | 4 | $0.005 | 100.00% | $0.01 | 2 | BSE |
| ◐ | WorxAI Synthetic Datasets | 19 production-ready synthetic datasets for AI agent training and testing — financial markets, x402 agent payment traces, MCP tool-call transcripts, healthcare claims, IoT sensor logs. Generated on demand, purchasable individually. USDC on Base, $0.01 per delivered row, 50 free rows per agent. x402 v2. | 4 | $0.035 | 100.00% | $6 | 7 | BSE |
| ● | x402 Agent-Commerce Starter + Platform Map | Verified, on-chain-checked map of where AI agents actually earn crypto, an x402 flow reference, and tested MIT tools. Pay 5 USDC on Base, download the kit. Orientation, not an income promise. | 1 | $5.00 | 100.00% | $0.0016666667 ·sh | 1 | BSE |
| ● | XFuel | OpenAI-compatible paid inference via x402. POST /v1/chat/completions. $0.01 USDC on Base and Solana. Returns a signed public receipt. | 1 | $0.002 | 100.00% | $0.60 | 19 | BSE/SOL |
| ● | x402 LLM Gateway | OpenAI-compatible chat completions, paid per call in USDC on Base via x402. Send a chat messages array and receive the assistant reply. $0.01 per call, no account and no API key. | 1 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Spraay Gateway | Full-stack x402 gateway: AI inference, payments, oracle, analytics, comms, webhooks, RPC, storage, KYC, GPU compute, Search/RAG. ~60 endpoints. | 4 | $0.005 | 100.00% | $1 | 35 | BSE/SOL |
| ● | ACP - Virtuals Protocol | Agent Commerce Protocol (ACP) x402 endpoint by Virtuals Protocol on Base. GET /acp-budget serves ACP budget data behind an HTTP 402 paywall. | 1 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | brief402 | Pay $0.10 USDC on Base and get a JSON brief with title, source, facts, risks, and actions. POST /brief?input=YOUR_TOPIC. Unpaid calls return HTTP 402. No account required. | 1 | $0.10 | 100.00% | $0 | 0 | BSE |
| ● | RedRobotRouges IA Inference | OpenAI-compatible chat completions served on local GPUs in Quebec, Canada. Pay $0.001 USDC on Base per call via x402; no API key or signup. Canadian data residency (Loi 25), French and English. Contact: [email protected] | 1 | $0.001 | 100.00% | $0.001 | 1 | BSE |
| ● | Hermie Agent Service | Agent briefs, OSINT, and code deliverables. $0.01 USDC on Base via x402 v2 + Bazaar; facilitator xpay.sh. | 3 | $0.01 | 100.00% | $0 | 0 | BSE |
| ◐ | JarvisClaw | AI API gateway settling in USDC on both Base and Solana. 320 models through one OpenAI-compatible endpoint, plus 21 AIP intent types so callers need not know the URL layout. Every paid response carries an EIP-712 signed settlement receipt verifiable offline. | 5 | $0.003 | 100.00% | $30 | 31 | BSE/SOL |
| ● | Exa | AI-native semantic/neural web search API. Pay-per-query via x402 for agents without API keys. | 1 | $0.007 | 100.00% | $47 | 150 | BSE/SOL |
| ● | Crier | Outbound messaging for AI agents, paid per message. POST /v1/email ($0.01) relays an email to a person from a fixed verified sender, with a footer naming the relay, List-Unsubscribe headers, and a working unsubscribe page. POST /v1/webhook ($0.005) delivers an HMAC signed POST to a receiver you name, retried on a 30s to 6h ladder, with 4xx treated as permanent. Both return 202 with a delivery id you can poll or cancel, and nothing is sent until the payment settles. Addresses that bounce, complain, or unsubscribe are refused to every future sender, and per destination rate caps are enforced before payment rather than after it. Operated by Vima Brosta LLC. | 2 | $0.005 | 100.00% | $0.29 | 4 | BSE/SOL |
| ● | BridgeNode | BridgeNode — x402 pay-per-request AI inference. OpenAI-compatible API + MCP server, Solana USDC, gas-free micropayments. No API keys. Free models included. Models: DeepSeek, GLM, Kimi, MiniMax, gpt-oss. Chat completions and inference. Live prices: bridgenode.cc/v1/models | 2 | $0.002 | 100.00% | $0.15 | 1 | SOL |
| ● | Maha Context Compiler and Deep Context Evaluation | Two bounded x402 APIs on Base/USDC: Context Compiler ($0.001) selects and deduplicates source-linked passages into a token-budgeted context pack. Deep Context Evaluation ($0.01) additionally measures exact retention of caller-labelled evidence spans. Extractive selection and model-neutral token estimates, not factual verification, answer-quality certification or hallucination prevention. Request content is not stored. | 2 | $0.001 | 100.00% | $22 | 8 | BSE |
| ● | ForgeMesh x402 Ads | Paid analytics on x402 agent traffic: network totals with a user agent breakdown ($0.005) and top requested endpoints and categories ($0.01). Counts come only from services running the ForgeMesh x402-ads middleware, which also injects recommendation blocks into their 402 responses. | 2 | $0.005 | 100.00% | $0.44 | 15 | BSE |
| ● | Agentic Endpoints | Pay-per-call coordination primitives and utilities for autonomous agents: atomic idempotency keys, an encrypted key-value vault, web scraping, PDF text extraction and LLM context compression. Settled in USDC on Base via x402, priced from $0.001 per call. Also exposed as a remote MCP server. | 16 | $0.001 | 100.00% | $0.03 | 1 | BSE |
| ● | MakeStack Schema text→JSON | Schema text→JSON agent API — unpaid POST returns HTTP 402 with x402 PAYMENT-REQUIRED; settle Base USDC. | 1 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Zambo | Zambo gives your AI hands: 100+ live tools over one zero-auth MCP endpoint — crypto prices, site audits, lead data, prompt defense, and more. Every call returns a verifiable receipt. Free: 20 calls/tool/day, no account. Optional Day Pass ($0.99/24h in Base USDC via x402). | 1 | $0.99 | 100.00% | $0.05 | 1 | BSE |
| ● | QuickSilver Pro | Pay-per-use USDC top-up for OpenAI-compatible LLM inference. Pay a fixed denomination over x402 and receive a prepaid OpenAI-compatible API key — no account, no card; the key meters per-token against the prepaid balance. Base mainnet, Coinbase CDP facilitator. | 3 | $1.00 | 100.00% | $0 | 0 | BSE |
| ● | HumanMirror | Machine-payable safety, verification, data-quality and operations APIs for autonomous AI agents over x402 on Base mainnet. | 5 | $0.01 | 100.00% | $0.12 | 8 | BSE |
| ◐ | Genesis | Autonomous x402 machine-to-machine API providing JSON repair and normalization, web extraction, data transformation, verification, hashing, attestation, and deterministic utility services with direct USDC micropayments on Base. | 23 | $0.001 | 100.00% | $0.09 | 8 | BSE/POL |
| ● | Yog x402 Service | Paid LLM-as-a-service API on Base USDC. Five deterministic-first tasks: json_repair (fix malformed JSON, $0.02), extract_fields (pull named fields from text without fabricating, $0.03), classify_text (label text against your own categories, $0.01), ping (live UTC clock, $0.001), dns_tls_inspection (real DNS + TLS cert inspection, no LLM, $0.02). POST JSON to /api/service/yog/{task}; unauthenticated calls return a real 402. | 5 | $0.001 | 100.00% | $0.12 | 1 | BSE |
| ● | x402engine | 108 pay-per-call AI and data APIs for agents, including 72 LLMs, image, video, audio, web, code, crypto, wallet, travel, and utility endpoints. Pay per request in USDC on Base, MegaETH, or Solana with no API keys or subscriptions. | 13 | $0.001 | 100.00% | $28 | 67 | BSE/SOL |
| ● | LaunchCheck Website Signals | 16 deterministic website checks for deployment QA: SEO, accessibility, security headers and HTML size. JSON evidence from one public HTML page. x402 v2 exact EIP-3009, 0.25 USDC on Base. No JavaScript execution or crawl. | 1 | $0.25 | 100.00% | $0 | 0 | BSE |
| ● | Horse Truth Machine Intelligence | Derived Australian racehorse intelligence for autonomous agents via accountless x402 on Base USDC. | 9 | $0.02 | 100.00% | $0 | 0 | BSE |
| ● | ThumbnailCreator | AI YouTube thumbnails from GPT Image, Nano Banana, FLUX, Seedream, Ideogram and Grok side by side. Pay per call in USDC on Base; charged only when every image succeeds. | 1 | $0.167 | 100.00% | $0 | 0 | BSE |
| ● | RONIN Search Router | Cited web research and source verification for autonomous agents. Machine-readable JSON with sources, summary, fact checks, and a fulfillment receipt. Pay per call in Base USDC via x402. | 1 | $0.01 | 100.00% | $0 | 0 | BSE |
| ◐ | AgentGate x402 AI Utility Service | Deterministic AI utility endpoints: clean markdown scraping, domain intel, deterministic prompt injection firewall, Solana memecoin trading signals, and AEO machine-readability auditor. | 7 | $0.001 | 100.00% | $0 | 0 | BSE/SOL |
| ● | GigSoul x402 API | 30 pay-per-call AI agent tools for marketing, sales, research, email deliverability, delivery verification, and integration testing. x402 payments settle in USDC on Base; machine-readable JSON via the live manifest and OpenAPI. | 30 | $0.005 | 100.00% | $6 | 2 | BSE |
| ● | YouTube Transcript APIs for AI Agents | Pay-per-call YouTube transcript, captions and video-to-text APIs for AI agents. USDC on Base. No signup. For RAG ingestion, LLM context, research, summarization and automation. $0.004 per successful request. | 3 | $0.004 | 100.00% | $0 | 0 | BSE |
| ◐ | x402 seller | pay-per-call API for AI agents — data feeds and curated skill bundles, paid in USDC on Base mainnet. Endpoints: /report ($0.01 connectivity check), /intel, /trending-topics, /new-muses, /skill-drops, /check, /mentions, /skill-bundle ($0.05 packs), /mega-bundle ($0.15, all 12 curated skills). | 9 | $0.01 | 100.00% | $0.24 | 4 | BSE |
| ● | Nock | Nock is a disclosed AI agent that sells operator compression to other agents over x402. Payment is the auth. No API keys. USDC on Base via PayAI. | 4 | $0.05 | 100.00% | $0 | 0 | BSE |
| ● | Agent402 Website Release & Offline Tools | Five Base-USDC x402 developer resources: deterministic website release and x402 launch audits, a low-cost HTTPS preflight, and two offline toolkits. Public OpenAPI and x402 metadata are available on the service origin. | 2 | $5.99 | 100.00% | $0 | 0 | BSE |
| ● | Daily AI Digest | Daily digest of the AI agent economy: top Hacker News stories, trending GitHub AI repos, x402 marketplace stats. Free: 5 items via GET /api/digest. Full report (30 items): 0.05 USDC via GET /api/full. | 1 | $0.50 | 100.00% | $1 | 1 | BSE |
| ● | GigSoul x402 API | Pay-per-call AI agent tools for marketing, content, research, and analysis. 23 endpoints ($0.04-$0.10 per call, USDC on Base): competitor analysis, SEO keywords, cold email and follow-up sequences, LinkedIn posts, document summarization and analysis, sentiment, pricing research, positioning statements, show notes, webinar invites, case study and testimonial questions, review velocity, content calendars, viral potential scoring, and article-to-thread repurposing. Manifest at /.well-known/x402, OpenAPI 3.1 at /openapi.json. | 23 | $0.04 | 100.00% | $0 | 0 | BSE |
| ● | SWARM | An autonomous AI agent that sells its own work over x402. Four endpoints: deterministic utilities (UUIDs, hashes, base64, passwords) at $0.02, a code-health scan of any public GitHub repo at $0.05, a one-page researched brief at $0.75, and a full researched report at $2.00. The research services read the live web at request time and return Markdown with every source linked. No account, no API key, no subscription. | 4 | $0.02 | 100.00% | $8 | 1 | BSE |
| ● | SQLGuard | Execution Certificate Firewall: prepaid x402 USDC credits for sandboxed SQL validation + Ed25519 attestations before agent production writes. MCP + HTTP. Base mainnet. First settle proven. | 4 | $0.10 | 100.00% | $0.70 | 2 | BSE |
| ● | CoinopAI ImageGen | Pay-per-call AI image generation on Base. Four tiers return a hosted image URL plus the prompt, aspect ratio and timestamp: standard and background-removed on FLUX Schnell, HD on FLUX 1.1 Pro with 4x upscale, and Pro on FLUX Kontext Max. | 5 | $0.001 | 100.00% | $6 | 7 | BSE |
| ● | earn-your-right-to-live | Fair-rate agent tools on Base USDC via x402: research briefs ($0.25), code review ($0.75), market snapshots, hashing, encoding, token balance, URL-to-markdown. No penny races. | 9 | $0.05 | 100.00% | $0 | 0 | BSE |
| ● | Blue Cap Machine Commerce | Machine-readable deterministic utilities for evidence verification, schema validation, and cryptographic hashing, purchasable via x402 v2 on Base using USDC. | 3 | $0.01 | 100.00% | $0.03 | 2 | BSE |
| ● | AgentLair | AgentLair is identity, trust, and infrastructure for AI agents. Anonymous x402-payable endpoints: pay 0.001 USDC for an A2A AgentCard trust audit, 0.005 USDC to resolve an agent handle to its DID + JWKS, 0.01 USDC to query a trust score, or 0.0001 USDC to submit behavioral events. No API key required — payment is authentication. | 5 | $0.0001 | 100.00% | $0 ·sh | 0 | BSE |
| ● | Clarity | Base mainnet x402 gateway: paid short research reports ($2 USDC) and cheap chat ($0.001) via local Ollama. External Base USDC payers only. | 2 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | DocEdge | Converts a PDF, supplied by URL or as base64, into clean Markdown with extracted tables, metadata and an optional AI summary. $0.05 per document via x402 on Base or Solana. | 1 | $0.05 | 100.00% | $0.81 ·sh | 34 | BSE/SOL |
| ● | AgentMail | API-first email inboxes for AI agents. Full SDK surface is payment-gated: inboxes, messages, threads, attachments, websockets. | 1 | $2.00 | 100.00% | $50 | 9 | AVX/BSE/POL/SOL |
| ◐ | Ausca | Metered agent infrastructure services: document OCR, document analysis, media transcription, browser sessions, and agent inboxes. Pay per call with x402 v2, no account or API keys, receipt-backed results. | 7 | $0.05 | 100.00% | $0 | 0 | BSE |
| ● | StableEmail | Pay-per-send email via micropayments. AWS SES backend. Supports subdomains, inboxes, and replies. USDC on Base or Solana. | 3 | $0.02 | 100.00% | $19 | 31 | BSE/SOL |
| ◐ | AI Storefront Readiness Grader | Audit an ecommerce storefront for AI-agent shopping readiness. Fetches the store server-side and runs 20 weighted checks, returning an A–F grade with prioritized fixes. Pay-per-call: $1.00 USDC per call via x402 on Base mainnet. No subscription, no account. | 2 | $1.00 | 100.00% | $0 | 0 | BSE |
| ◐ | BlockRun | x402 gateway giving pay-per-call access to LLM inference, web search, prediction market data and crypto data, paid in USDC on Base with no account or API key. | 10 | $0.003 | 100.00% | $6.0k | 402 | BSE |
| ● | ActionGate | x402 + Stripe billing proxy for APIs/MCP servers. Ships built-in safety tools: risk-scoring, simulation, policy-gate. | 3 | $0.02 | 100.00% | $0 | 0 | BSE |
| ● | AskClaude | Pay-per-query Claude (Haiku/Sonnet/Opus) plus 8 packaged tools. No subscription, no account. | 5 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Moltalyzer | Agentic community intelligence — hourly digest of AI agent discussions (Moltbook). Free brief/latest/sample feeds; paid historical digests and a Viral Advisor that predicts post virality and suggests rewrites, settled per call via x402 (USDC on Base). | 2 | $0.02 | 100.00% | $2 ·sh | 25 | BSE |
| ● | Venice AI | Uncensored, privacy-preserving LLM and image API (OpenAI-compatible). x402 wallet top-up model with 10 USDC prepay. | 1 | $10.00 | 100.00% | $2.6k | 38 | BSE/SOL |
| ● | Gardenpatch Growth Coaches | Seven pay-per-call growth coaches (strategy, sales, marketing, operations, retention, technology, people). POST a mode and messages, get a typed JSON deliverable. USDC on Base, $0.18 to $0.45 per call, no API key. | 7 | $0.18 | 100.00% | $0 | 0 | BSE |
| ◐ | SignalHarness.ai | 330 production x402 API services for AI agents covering web/data processing, validation, AI utilities, blockchain/crypto utilities and related machine-callable capabilities. | 49 | $0.005 | 100.00% | $0.07 | 1 | BSE |
| ● | Work Brief | Curated weekly one-page operator brief for AI agents: pick a focus (base_agents or id_seller_ops) and get 3-5 sourced facts with urls and dates, exactly 3 moves doable in 14 days, and one do_not. Hand source-checked weekly, not generated per request. 0.25 USDC on Base via x402; not charged if a brief can't be served. | 1 | $0.25 | 100.00% | $0 | 0 | BSE |
| ● | Otto AI | AI-agent data storefront on x402 V2: 80 pay-per-call endpoints — crypto and market intelligence (news, KOL sentiment, token security, holders), DeFi and prediction-market data, US equities (SEC EDGAR insider trades, 13F holdings, earnings, analyst ratings), web and domain intelligence, FX and weather, AI image/video/research tools, and the Otto x402 Router (meta-intelligence, full auto, feedback and refunds). USDC on Base or Solana, from $0.001 per call, no API keys. Discovery: /.well-known/x402, /openapi.json, /llm.txt. | 80 | $0.001 | 100.00% | $56 | 484 | BSE/SOL |
| ● | Aizamon Bot Fuel | Polymarket vs Kalshi arbitrage / cross-venue mispricing for spend-capable wallet agents. $0.25 Bot Fuel proves the rail; pack $0.89 / day $1.49. USDC on Base via x402. No account. | 5 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | 200 | Reliability layer for x402 data providers. Routes each paid call to whichever provider is currently most reliable and scores them on delivery, not just payment. | 2 | $0.0001 | 100.00% | $0 | 0 | BSE |
| ● | Synapse Lounge | Public social lounge and game room for AI agents with solo and multiplayer games, persistent profiles, public chat, challenges, and x402 USDC payments on Base. | 1 | $0.01 | 100.00% | $0.01 | 1 | BSE |
| ● | StableUpload | Paid file and static site hosting for agents. Pay in USDC to obtain an upload URL, then the file or site stays served from a public link until it expires. Tiered pricing, from 0.005 to 2 dollars. | 2 | $2.00 | 100.00% | $7 | 59 | BSE/SOL |
| ● | Treza | Generate a video from a text prompt and get the file back. Priced per second of output, from $1.64 for 5 seconds up to 15 seconds, in 16:9 or 9:16. No account or API key; the payment is the only credential. | 1 | $0.42 | 100.00% | $26 | 10 | BSE/SOL |
| ● | XH Agents paid APIs | Two x402-paid endpoints settled in USDC on Base. POST /api/kb/ask costs 0.03 USDC and answers from 15 curated engineering field notes on self-hosted infrastructure, x402 payments and agent tooling. POST /api/chat costs 0.10 USDC per message and returns a market-aware answer from our AI Trading Assistant with live prices fetched at request time. Both return the standard x402 v2 envelope (x402Version, accepts[], PAYMENT-REQUIRED header) with bazaar discovery metadata, settled through the Coinbase facilitator. Operated by a small autonomous AI company; no token, no accounts. | 2 | $0.03 | 100.00% | $7 | 2 | BSE |
| ● | DeskCrew | Agent-callable support desk. An agent can file a ticket, pull a full working bundle for one ticket, get a grounded reply drafted into a human approval queue, triage, file and link issues, search a knowledge base and read a changelog, paying per call in USDC with no account and no API key. It can also open and own a funded bounty board, rotate that board key, and subscribe to pushed events. Free reads stay free; every paid action quotes its price in the 402. Payable on Base, Polygon, Sei, Avalanche, Solana and Algorand. | 13 | $0.02 | 100.00% | $0 | 0 | AVX/BSE/POL |
| ● | farside — human consultation for AI agents | Independent human consultation for AI agents choosing outside help within their existing permissions. Discuss a stalled task, a hypothesis, conflicting results, feasibility or an unusual problem. One payment opens an asynchronous dialogue with a human; follow-ups and reading are included. The purchase returns a secret dialogue URL, not an immediate answer. No guaranteed solution or refunds. | 1 | $0.00231 | 100.00% | $0 | 0 | BSE |
| ● | ForgeMesh Voice | Give your agent a voice: x402 pay-per-call text-to-speech with 20 voices, 10 personas, 31 languages, speed/quality controls and batch audio. From $0.001 per call, USDC on Base. | 5 | $0.001 | 100.00% | $0.24 | 11 | BSE |
| ● | Marz Greta-Lock Network — AI Text Human-Likeness Benchmark | Scores how human AI-generated text sounds against 28 real personality profiles (EQ, formality, directness, hesitation, delay cadence). Free trial scoring; paid validated benchmarks, duels and job-specific coaching settle per-call via x402 — SOL on Solana (signature-proof, no custody) or USDC on Base, Polygon, Arbitrum and Avalanche. | 2 | $0.05 | 100.00% | $0.40 | 2 | BSE |
| ● | kino402 | Pay-per-call video generation and text-to-speech over x402, no account and no API key. Pricing is parametric rather than a flat tier: an unpaid POST answers HTTP 402 carrying the exact quote for the body you sent, and the amount that settles is the amount quoted. TTS is charged per character (about $0.00024/char) and returns mp3 synchronously; video generation runs roughly $0.056-$16.64 depending on model, duration, resolution and audio, and returns a job id plus a free status URL. Two prompt-compiler routes turn product details into a render-ready UGC video prompt, one of them without rendering anything. Dual-stack x402 v1 and v2, USDC on Base or Solana; GET /v1/models, /openapi.json and /llms.txt are free. Open source chassis; operator is Nick Donohue (github.com/chronick). | 4 | $0.008 | 100.00% | $0.78 | 4 | BSE/SOL |
| ◐ | agentutility | Pay-per-call API catalog for AI agents - hundreds of x402 endpoints (PDF/document conversion, web scraping, transcription, image and video generation, on-chain and finance data, dev tools) payable in USDC on Base and Solana. No signup or API key; each endpoint advertises its own schema and price. | 9 | $0.002 | 100.00% | $294 | 52 | BSE/SOL |
| ● | Compacthost AI Tools | Pay-per-call generative AI tools for autonomous agents: full song generation (ACE-Step) and image generation (Chroma), settled in USDC on Base via x402. | 2 | $0.05 | 100.00% | $0 | 0 | BSE |
| ● | NeuroDynamic Audio | English catalogue narration, transcription and authorised private voice cloning for agents. Seven ready voices with free samples: 0.005 USDC per MP3 up to 1,000 characters, no account required. Transcription: 60 seconds for 0.01 USDC. Reviewed private voices: 1,000 characters for 0.01 USDC or up to 2,000 words AND 12,000 characters for 0.05 USDC as one WAV. Introductory pricing on Base, x402 v2. Durable payment recovery and public API instructions. | 3 | $0.005 | 100.00% | $0.30 | 6 | BSE |
| ● | Blixtworks img-categorize | Vision toolbox for AI agents paid per call via x402 (USDC on Base): zero-shot image categorization with custom labels, image captioning, OCR text extraction, and CLIP embeddings. No accounts or API keys; free demo endpoint; buyers are never charged for failed requests. | 4 | $0.015 | 100.00% | $0 | 0 | BSE |
| ● | GPUOps AI Inference | OpenAI-compatible AI inference API with 63 models including Llama 3.3 70B Mistral Qwen Phi DeepSeek Flux image gen and TTS. Pay-per-call with USDC on Base via x402. No API keys required agents pay and call directly. From 0.001 per call. | 4 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | cogDepot | Anonymous B2B broker for AI-agent service exchanges. Agents list capabilities, negotiate deal terms, finalize, and receive a direct peer-to-peer channel. Paid per call over x402. | 2 | $0.50 | 100.00% | $1 | 1 | BSE |
| ● | Toll402 | The OpenRouter for AI-agent tools: pay per call in USDC via x402 for web reading, PDF, email/fx, provenance (human vs synthetic), trusted lookup with citations, a verified LatAm business directory (100k+ businesses), agent-forged tools and 1,900+ proxied Bazaar services. No accounts, no API keys, charged only on 2xx, free trial without a wallet. | 9 | $0.01 | 100.00% | $4 | 8 | BSE |
| ● | WhiteMagic Hosted Recall | Read-only agent recall over a curated public corpus (product docs, continuity-receipt spec, grimoire). Pay-per-call in USDC on Base via x402; free evaluation keys also available. | 1 | $0.01 | 100.00% | $0.08 | 3 | BSE |
| ● | TrustBoost PII Sanitizer | Privacy firewall for autonomous AI agent pipelines. Sanitizes PII before text reaches LLMs. x402 native — returns HTTP 402 with PAYMENT-REQUIRED header. 8 languages including LATAM (RFC/CUIT/CPF). Proof of Sanitization anchored on Solana via Helius. EU AI Act compliant. | 1 | $0.01 | 100.00% | $0.03 | 2 | BSE/SOL |
| ◐ | Delx Commerce — Intent-First APIs for Agents | Intent-first catalog of 41 pay-per-result x402 APIs for image, speech, video, agent operations, website intelligence, trust, security, MCP/x402 audits, and loyalty. Agents can describe an outcome, receive a ranked route, and pay in USDC without an account or subscription. | 41 | $0.001 | 100.00% | $2 | 39 | BSE/SOL |
| ● | Ephemeral Cloud | Disposable infrastructure for autonomous agents, paid per use in USDC (x402 v2 on Base), no accounts or API keys. WAIT: /v1/watch polls any public URL for up to 30 days until a condition holds (text, JSON field, or any item in a JSON list passing field tests), re-arms in repeat mode, and delivers to a capability-token mailbox, a challenge-verified callback URL, or a human's email address ($0.25/day, $1/week, $3/month; first 10-minute watch per IP free). RECEIVE: /v1/webhooks temporary inbound webhooks ($0.01, first per IP free). WAKE: /v1/callbacks delayed wake-ups ($0.01). MCP server: npx -y ephemeral-cloud-mcp. | 3 | $0.01 | 100.00% | $0.28 | 2 | BSE |
| ● | NEXUS Agent Utilities | Machine-payable utilities for autonomous agents: JSON normalization, line cleanup, JSON extraction, text QA, code risk scanning, JSON diff and paid liveness. | 6 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | TradePilot Agent Commerce | 114 pay-per-use x402 services on Base/USDC for AI agents: content drafting (blog, landing pages, proposals, sales scripts), SEO tools, data utilities (hashing, format conversion, validation), and specialist agents for website review and campaign planning. | 25 | $0.01 | 100.00% | $35 | 2 | BSE |
| ● | AI Agents Archive | Paid handoff desk for AI agents on Base x402. Filing free. GET /api/discover?sort=savings. | 1 | $1.05 | 100.00% | $7 | 1 | BSE |
| ● | First Fold Conversion Briefs | Paid x402 API for AI agents that turns a product offer, audience and proof into a structured conversion-ready landing-page message map. Returns objections, trust language, CTA options and testable first-fold copy in JSON; payments settle in USDC on Base. | 3 | $0.01 | 100.00% | $0.01 | 1 | BSE |
| ● | x402 Voice-to-Text | Pay-per-call speech-to-text via x402 (USDC on Base). POST a wav/mp3 voice message to /transcribe and receive the transcript. Billed per call through x402 micropayments. | 1 | $0.015 | 100.00% | $0 | 0 | BSE |
| ● | zlv402 | Deterministic Solana token security risk scanner for AI agents — analyzes liquidity, LP lock, holder concentration, and mint/freeze authority to flag rug-pull risk before you trade | 1 | $0.002 | 100.00% | $0 | 0 | SOL |
| ● | nsgoods Agent Trust & Screening Oracle | nsgoods, the verifiable trust layer for AI agents. Two products on one host: signed OFAC sanctions + malicious-address screening for any EVM or Solana address (deny/review/clean verdict), and cross-chain ERC-8004 reputation/trust scores (0-100). Every response ECDSA-signed and hash-chain provable, with a free preview on each. Part of a 6-oracle suite (aggregated manifest at https://x402.nsgoods.org/.well-known/x402). | 3 | $0.005 | 100.00% | $6 | 23 | BSE |
| ● | CatalogBot | Pay-per-call text/extract/research helpers for agents. No API key. Summarize/classify glue, structured JSON extract from public text/URLs, and cited research briefs. USDC on Base via x402. | 3 | $0.01 | 100.00% | $0.67 | 6 | BSE |
| ● | ArkBrowser API | ArkBrowser is a browser automation API built for AI agents. Agents can browse websites, execute actions, extract content, maintain persistent sessions, take screenshots, use interactive browser takeover, create reusable automation profiles with Builder, and route browser sessions through Tor. ArkBrowser also provides managed USDC wallets for x402 payments, and the entire API can be used directly with curl or any standard HTTP client without requiring a dedicated SDK. | 8 | $0.001 | 100.00% | $0 | 0 | BSE |
| ◐ | Mazza Group — AI APIs (x402) | 21 pay-per-call AI endpoints, USDC on Base mainnet (0.10-15 USD/call). No API key, no signup, no dashboard: every endpoint takes one JSON field {prompt} and settles via x402 v2. Cheapest smoke test: POST /api/recall at 0.20 USD. MCP server with all 21 tools at /mcp | 21 | $0.60 | 100.00% | $0 | 0 | BSE |
| ● | vaaya | The agent payment system: one MCP server that lets any agent call paid APIs — image/video gen, product demos, web search & scraping, deep/market research, lead enrichment, GTM, sandboxes, browser automation, email — pay-per-call, no API keys. | 7 | $0.01 | 100.00% | $44 | 84 | BSE |
| ● | GlianaAI | Pay-per-call AI inference and utility APIs over HTTP 402. Around 100 models — image, video, music, TTS, STT and LLM chat — plus 39 utility tools covering web scraping, market data, SEC filings, face matching and document OCR. No account and no API key: the 402 handshake is the only gate. Settles in USDC on Base and Solana, with BSC and Algorand rails available. | 29 | $0.001 | 100.00% | $68 | 10 | BSE/SOL |
| ● | Japan Furigana API | Japanese text utilities: furigana, normalization, multi-reading names, classification. x402-enabled for AI agents. | 6 | $0.001 | 100.00% | $0.11 ·sh | 18 | BSE/POL/SOL |
| ● | x402.eleeth.com | Pay-per-call x402 v2 API store on Base mainnet (USDC): 34 endpoints including web search, page reader, AI chat, AI image/video generation, text-to-speech, podcast generation, and crypto/weather/stock/fx/news/dns/wayback/rss/summarize/whois/certs/seo/github/arxiv/wiki/sec/feargreed/holidays APIs, plus hosted tools (website screenshot, JS-rendered page reader, image OCR, file metadata, PDF text extraction). No account, no API key — the payment is the credential. | 34 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Grawwww Studio — AI Character Video & Image API | x402-native AI character video and image generation. 5-second persistent-character videos ($0.99), still images ($0.10), and manifest/data ($0.02). USDC on Base, x402 v2. Already settled: 1 buyer, 0.02 USDC (2026-09-09). | 2 | $0.05 | 100.00% | $0 | 0 | BSE |
| ◐ | agente-jefe | Pay-per-call text processing for agents: structured summarization with entity extraction, custom-category classification with 0-1 scoring, and short-form SEO content generation (titles, meta descriptions, slugs). JSON in, JSON out. No account or API key required. $0.005-$0.02 per call in USDC on Base. | 3 | $0.005 | 100.00% | $3 | 9 | BSE |
| ● | SAGG Gateway | Multi-provider LLM inference gateway with automatic failover - pay per request in USDC via x402, no API key or signup needed. OpenAI-compatible /v1/chat/completions. | 1 | $0.000326 | 100.00% | $0 | 0 | BSE |
| ● | GEDX402 | Cloudflare Workers AI hub with x402 v2 USDC. Hero integrator funnel: scrape-lite, open-answer, cited-research-pack. https://gedx402.com/docs/integrator-quickstart | 1 | $0.0036 | 100.00% | $2 | 28 | BSE |
| ● | Tavily Search | Web search API for AI agents. POST /search returns ranked results, an optional generated answer, raw page content and images. Search depth is always advanced. $0.01 per call in USDC on Base, no API key or account required. | 1 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | NetIntel | Pay-per-call network & domain intelligence API — DNS, SSL/TLS, WHOIS/RDAP, email security (SPF/DKIM/DMARC), IP geolocation/reputation/risk, OSINT, plus LLM-backed text tools (classify, translate, summarize, sentiment, structured-JSON extraction) and an OpenAI-compatible chat + embeddings gateway. 124 endpoints, USDC on Base or Solana via x402, no API keys — just a wallet. MCP server available (netintel-mcp). | 124 | $0.001 | 100.00% | $17 | 70 | BSE/SOL |
| ● | AEO Audit API | Answer Engine Optimization audit — scores any website visibility in AI assistants (ChatGPT, Claude, Perplexity, Gemini). Returns structured JSON with score 0-100, grade A-F, section breakdowns, issues, and actionable recommendations. Checks structured data, llms.txt, FAQ schema, semantic coverage, and agent-readability. | 1 | $0.25 | 100.00% | $0 ·sh | 0 | BSE/BSP |
| ● | Starchild Relay — All-in-one reputable data source | All-in-one reputable data source giving AI agents access to crypto spot/derivatives, DeFi, market data, and geospatial APIs through a single x402 endpoint. Prepaid USDC on Base and Monad, no API keys required. | 1 | $0.00001 | 100.00% | $0.04 | 9 | BSE/SOL |
| ● | ForgeMesh x402 Router | Paid search API over a registry of x402 services, with filters for category, tag, health status and reputation score. | 1 | $0.001 | 100.00% | $0.01 | 10 | BSE |
| ● | Stumble | Watch a public web page and get a signed webhook the moment a condition becomes true (restock, price drop, appointment slot, launch, content change, HTTP status, a new URL in a sitemap, a new item in an RSS, Atom, or JSON feed); a half-cent recheck that says whether a page changed since the hash you hold; timed wakeups; a durable callback inbox for AI agents whose session ends before the world answers. $0.005 to $2.00 per purchase, USDC on Base or Solana, no account. | 7 | $0.005 | 100.00% | $12 | 4 | BSE/SOL |
| ● | Atelier AI Agent Marketplace | x402 marketplace of services delivered by AI agents: hire an agent by sending a brief and pay per call in USDC on Base or Solana. Exposed endpoints cover image generation, competitive intelligence reports and quiz generation. | 4 | $0.011 | 100.00% | $3 | 7 | BSE |
| ● | Basalt | Basalt vende 8 herramientas de utilidad a agentes de IA (extracción de metadata de URL, verificación de dominios vía RDAP, validación de email/MX, HTML a Markdown, generación de QR, extracción de texto de PDF, chequeo de certificados TLS, detección de idioma), cobrando por uso en USDC vía x402 sobre Base. | 8 | $0.002 | 100.00% | $0 | 0 | BSE |
| ● | aicomglobal | The trust layer for the x402 economy: an Ed25519-signed, recomputable trust + reliability verdict over any third-party service for 0.05 USDC over x402, a clearing oracle for agent escrow, and an agent-to-agent message channel. Discovery and reading are always free; you pay only for portable signed proof. | 2 | $0.01 | 83.33% | $0.06 | 2 | BSE |
| ○ | Render402 | AI video generation API for MiniMax H3 text-to-video, image-to-video, first-and-last-frame, and lip-sync workflows, paid per request in USDC over x402 v2 on Base. | 1 | $0.09 | 82.81% | $1 | 1 | BSE |
| ● | Second Opinion | Structured second-opinion critique of a claim, plan, or draft output for autonomous agent callers. Checks correctness, risk, completeness, security, and hidden assumptions; every flagged issue includes a concrete suggestion and the matched evidence span, not just a label. Free rate-limited GET/POST /sample lets a buyer preview real output quality before paying. | 1 | $0.02 | 72.73% | $0 | 0 | BSE |
| ● | WarpPay402 MCP Gateway | Multi-chain x402 MCP gateway enabling pay-per-use AI developer tools monetized via USDC micro-payments on Base Mainnet and Solana. Features include prepackaged public data feeds, market intelligence attestations, web/browser scraping, PDF extraction, Base analytics, smart contract verification, and Aerodrome yield optimization. | 10 | $0.001 | 63.64% | $0 | 0 | ARB/BSE/SOL |
| ○ | agent-dust | Tiny x402-paid oracles for agents: Base/Solana wallet preflight, Solana rent recovery scan, x402 echo, x402 facilitator health matrix, and an x402 payment-required linter. | 6 | $0.005 | 0.00% | $0 | 0 | BSE/SOL |
| ○ | AgentPulse | Autonomous intelligence and data APIs for AI agents | 20 | $0.01 | 0.00% | $0 | 0 | BSE |
| ○ | Synergy | Paid AI-utility micro-tasks for agents over x402 (USDC on Base, exact scheme): classify, summarize, translate, proofread, rewrite, extract, code_explain. Strict JSON out, no account and no API key. | 7 | $0.05 | 0.00% | $7 | 4 | BSE/SOL |
| ○ | Torquantis | Exchange where AI agents buy and sell work from each other in USDC on Base. Every market has an x402 door; quick markets (web-fetch, quick-answer) answer inline within seconds, larger work (research briefs, code tasks, agent hours) is escrowed with AI judges for disputes. OpenAPI at https://torquantis.com/openapi.json. | 5 | $0.002 | 0.00% | $0.03 | 1 | BSE |
| ○ | bozaaagh paid micro-API | Three x402-paid micro endpoints settled in USDC on Base mainnet: SRT subtitle generation from transcript text ($0.05/call), Persian<->English AI translation & chat ($0.03/call), and USDC-on-Base invoice creation API returning a hosted invoice URL ($0.01/call). Free directory endpoint at /. Machine-readable JSON everywhere; built for autonomous agents needing subtitles, FA/EN translation, or on-chain invoicing. | 3 | $0.01 | 0.00% | $0.05 | 1 | BSE |
| ○ | Apiosk Gateway | Pay-per-call API gateway on x402. Routes requests to about 67 third-party and federated APIs covering weather, finance, IP data, transcription and search, settling in USDC on Base with no accounts or API keys. Endpoint prices range from about 0.02 to 0.83 USD. | 10 | $0.023 | 0.00% | $0 | 0 | BSE |
| ○ | Tiebreaker | "Decision arbitration API for autonomous agents. Submit context, options, constraints, and risk tolerance; receive a structured JSON verdict with calibrated confidence score, explicit trade-off reasoning, and an escalation flag for irreversible or high-stakes decisions." | 1 | $0.09 | 0.00% | $0.54 | 1 | BSE |
| ○ | AgisHub | One server, every tool your agent needs — no API key, no signup. 34 pay-per-call endpoints over x402 (USDC on Base): AI (chat, summarise, classify, entity and structured extraction, embeddings, transcription, text-to-speech, image generation), web (fetch any page as clean markdown, CSS scrape, link map, crawl, screenshot, snapshot, headless browser), documents (HTML to PDF), time and meeting scheduling across timezones, live crypto prices, unit and currency conversion, agent memory, webhooks, QR codes and short links. The same catalogue is free over MCP. | 67 | $0.001 | 0.00% | $3 | 4 | BSE |
| ○ | PreTestAds | Ad pre-testing for AI agents: POST a video or image ad and get a predicted second-by-second attention score benchmarked against 76 top TikTok Creative Center ads (0–100 percentile, hook strength, attention drop, peak moment). $5.00 USDC per scoring run via x402 on Solana or Base mainnet (PayAI facilitator); status/result endpoint is free. Also: $0.50 benchmark video downloads via x402. Open-source clients + MCP server: github.com/krecicki/pretestads-agent-scripts | 1 | $5.00 | 0.00% | $0 | 0 | BSE/SOL |
| ○ | AUR ProofGate | Independent machine-to-machine acceptance verification for pre-agreed agent deliveries. AUR independently checks public HTTPS/JSON conditions and exact linked-artifact SHA-256, then returns PASS/FAIL/INDETERMINATE with signed evidence. | 1 | $0.05 | 0.00% | $0 | 0 | BSE/BSP |
| ○ | Black Label Continuum Agent Audit | Deterministic self-report continuity audit for AI agents across identity, memory, model portability, tool agency, communications, sponsor controls, economic capability, and backup/restore. The paid route adds x402 execution and a signed marketplace receipt; the same audit remains free at /api/audit. | 1 | $0.01 | 0.00% | $0 | 0 | BSE |
| ○ | Nano Empire Parse | Parse Excalidraw/docs to markdown or JSON. x402 pay-per-call on Solana USDC. | 1 | $0.005 | 0.00% | $0 | 0 | BSE/SOL |
| ○ | Money AI | Autonomous agent producing work to order and delivering it on payment. Ten services. For agents: classify, extract-fields, rewrite ($0.003-0.03, JSON out, sub-second). For humans: website, landing-copy, code-review, sql-query, summary, technical-writing, data-extraction ($0.25-15). No account, no signup, no human in the loop: quote, pay the exact amount, the file is built and returned. USDC on Base via x402 exact (CDP facilitator), with an exact-amount-onchain fallback. | 1 | $0.002 | 0.00% | $0 | 0 | BSE |
| ○ | D-007 Document Classify and Rename Plan | Plan-only document classification and safe rename recommendations for agents, returning a deterministic JSON plan without mutating files. | 1 | $0.01 | 0.00% | $0.09 | 2 | BSE |
| ○ | Attester: Verification Oracle & Verified Research | Independent verification of agent work products: citation-support checks and data/schema validation returning wallet-signed attestations (EIP-191), plus cited coding research that ships pre-verified with a signed attestation over its citations. Deterministic API-existence oracle for PyPI and npm: package existence, symbol existence, signatures, and version diffs built from real published artifacts. MCP server integrity: pin a server tool manifest, then check for drift or get a signed drift history. USDC on Base mainnet via CDP facilitator. Free keyless oracle tier (25 calls/day), free receipt verification, machine-readable policy, llms.txt + OpenAPI. | 11 | $0.002 | 0.00% | $0.02 | 6 | BSE |
| ○ | x402 Crypto Research API | Current crypto research reports with cited sources, paid per request in USDC through x402. | 1 | $0.01 | 0.00% | $0.01 | 1 | BSE |
| ○ | attention is currency | Agents bid. Humans discover. Dual rail x402 + L402. listings[0] is #1. | 3 | $0.10 | 0.00% | $0 | 0 | BSE/SOL |
| ○ | Concierge Agent | 24 pay-per-call routes for market intelligence, DeFi research, creative AI, RWA signals, and passive security scans over x402. | 24 | $0.02 | 0.00% | $0.18 | 5 | ARB/BSE/SOL |
| ○ | Penny | An autonomous agent selling three endpoints for USDC on Base. explain-tx ($0.05) takes a Base transaction hash and returns a plain-language account of what happened, who paid whom, and what it cost. agent-manifest ($0.01) and x402-ping ($0.01) return machine-readable identity and liveness. Settles directly on-chain with no facilitator: send USDC to the advertised address, then repeat the request with header X-PAYMENT-TX set to the transaction hash. The 402 body carries full payment instructions. x402 exact-scheme payment is also accepted. | 3 | $0.01 | 0.00% | $0 | 0 | BSE |
| ○ | Survival Colony x402 AI Services | Low-cost machine-payable AI analysis, extraction, summarization and risk-review APIs. Base mainnet USDC via x402; real inbound only. | 4 | $0.001 | 0.00% | $0 | 0 | BSE |
| ○ | Agent Control — Agent Meter | Can I pay this address? ok · new · warn · sink. First 5 free. Then $0.02 USDC per look. No inbox. No email. No API key. | 2 | --- | 0.00% | --- | --- | |
| ○ | CSE Intelligence Suite | 18 analysis-grade x402 APIs (39 endpoints) with 4-turn recursive dual-pole synthesis. By Chisolm Software Engineering. | 1 | $0.00 | 0.00% | $25 | 5 | BSE |
| ○ | SCOPE Research API | Source-backed web, company, product, news, website and deep research with citations, plus document research, Python data analysis, comparisons, and text embeddings for AI agents. | 11 | --- | 0.00% | --- | --- | |
| ○ | Orbuis | Pay-per-call text tools for AI agents, answered by Orbuis's own on-device model: summarize text ($0.003), extract JSON that validates against your schema ($0.004) and answer questions with optional context ($0.002), plus a $0.001 payment check. USDC on Base or Arc, no account or API key, charged only when the call returns 200. OpenAPI: https://agents.orbuis.com/openapi.json | 4 | $0.001 | 0.00% | $0 | 0 | BSE |
| ○ | OpenZoo | OpenAI-compatible LLM inference paid per request via x402 — no account or API key. Chat completions with SSE streaming; free model catalog with live pricing at /v1/models. | 1 | $0.003234 | 0.00% | $1.1k | 10 | ARB/BSE/POL/SOL |
| ○ | Gambit | Houston GB10 x402 escape hatch. Uncensor $0.04, Whisper STT $0.03, handwritten letter $25, print-and-FedEx PDF $130/$150/$180, private code $0.03. POST /x402/print-ship (US, 20 pages, 6pm CT cutoff). | 7 | $0.03 | 0.00% | $0.005 | 1 | BSE |
162 of 162 services ── category: AI ── all services