x402 Content API
x402 content APIs that gate articles, media, and generated text behind a per-request HTTP 402 charge. Built for agents that fetch and pay for content on demand.
CONTENT SERVICES ── 41 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 |
|---|---|---|---|---|---|---|---|---|
| ● | Twelve Permissions | Twelve NFTs on the XRP Ledger, each one sealing a verified human-to-AI authorization event. Pay in USDC over x402 on Base; the seal is delivered as a directed 0-XRP transfer offer on XRPL within about 30 minutes, carrying your authorization memo on-chain as permanent provenance. The art is deterministic: every mark derives from the SHA-256 of the canonical authorization record, so it can be regenerated from a public generator and compared byte for byte. | 3 | $9.00 | 100.00% | $0 | 0 | BSE/BSP |
| ● | X (Twitter) Media Downloader | Resolves a public X (Twitter) post URL into direct CDN media links: mp4 video URLs with thumbnails plus every image in the post. Returns link URLs only, not the media bytes; posts with no media return 404. $0.005 per call in USDC on Base. | 1 | $0.005 | 100.00% | $0.13 ·sh | 17 | ARB/BSE/POL/SOL |
| ● | Penny Press | Penny Press is a pseudonymous essay publication by Scribed. Free for humans to read; AI agents pay pennies in USDC on Base via the x402 protocol per piece. Fragments $0.01, ensembles $0.02, prose $0.05. | 7 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | The 402 Wall | A 1600×900 pixel billboard split into 14,400 blocks of 10×10 pixels, sold only over x402 for $1.00 USDC on Base — and only to machines. Humans may look. A purchase buys 100 pixels you control, a permanent public deed with your message and link, and a line in the Founding Machines registry. GET /blocks/next assigns the next open block; GET /blocks/{col},{row} buys a specific one. | 1 | $1.00 | 100.00% | $16 | 5 | BSE |
| ● | Supreme Audiobooks | A corpus of 3,029 public-domain audiobooks by 1,822 authors, with original editorial descriptions and 1,644 machine transcripts across 12 languages (ar, bg, de, en, es, fr, hi, ja, ko, pt, ru, zh). Four x402-metered endpoints: the full catalogue, per-book records, substring search over title and author, and full transcript text per book per language. The audio is public-domain LibriVox narration and is NOT sold here; it is free from us and from LibriVox. What is metered is our own work: the catalogue metadata, the editorial essays, and the transcripts and translations. Human-facing pages and search-engine crawlers are never charged. Terms: https://supremeaudiobooks.com/licensing | 3 | $0.001 | 100.00% | $0 | 0 | BSE |
| ● | Scribe | Four clerical jobs an AI agent cannot do for itself, sold per call with no signup, no API key, and no account. POST /v1/domain ($0.005) returns RDAP registration, live DNS, the TLS certificate as served, and what the HTTP front door does, each part best effort with an errors map. POST /v1/translate ($0.01) translates a short text between languages. POST /v1/convert ($0.01) converts between HTML, Markdown, plain text, PDF, and a fetched URL. POST /v1/render ($0.02) renders a URL or inline HTML to PDF or PNG and returns the bytes. Every product is synchronous and stateless: no ids, no stored secrets, nothing to poll or cancel, and a retry is simply a new purchase. Operated by Vima Brosta LLC. | 4 | $0.005 | 100.00% | $0.06 | 3 | BSE/SOL |
| ● | penny402 | The penny arcade of the x402 economy: ten tiny, self-contained attractions for agents at a flat $0.0025 in USDC (Base or Solana) — daily horoscope, oracle, koan, tarot, fortune, an x402-market prophecy, a wallet roast, and three live high-temperature creativity endpoints (spark, oblique, brainstorm). Free directory at /penny and /v1/attractions; llms.txt and openapi.json published. No account, no API key; the unpaid 402 is the quote. No wagering, ever. | 10 | $0.0025 | 100.00% | $0.13 | 12 | BSE/SOL |
| ● | DreamWidget | Embeddable Logo Showcase and Video Showcase widgets for any website (YouTube, Vimeo, Twitch and TikTok), unlimited views, one snippet. An agent buys a plan term with x402 (USDC on Base or Solana, XRP, HBAR) at the card price: POST /api/v1/plan answers 402, the paid retry grants the term and returns the API key for a new email. The API then builds, publishes and counts widgets. OpenAPI at /openapi.json, manifest at /.well-known/x402. | 1 | $20.00 | 100.00% | $6 | 1 | BSE/SOL |
| ● | Shots for Bots | A catalog of 3,790 original photographs sold one file at a time over HTTP 402. GET /original?id=<12 hex id> answers 402 with an x402 v2 challenge (exact scheme, USDC on Base, eip155:8453, settled by a self-hosted facilitator); pay and the response body is the full-resolution JPEG, with a redelivery token for interrupted downloads. Prices are fixed per photograph at $0.10, $0.50 or $2.00. Free 800 px previews and 320 px thumbnails, a paged JSON catalog at /index.json, plus llms.txt, OpenAPI 3.1 and /.well-known/x402 so an agent can find and buy a file without a human. Every 402 carries an extensions.bazaar input schema for the id parameter. Previews are reserved from training; the originals come with a per-file license for ML training, fine-tuning and evaluation. Contact [email protected]. | 1 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | AnySpend | x402 purchase endpoints from AnySpend on Base. POST /ads/buy and POST /articles/buy let agents pay per ad or article purchase in USDC. | 2 | $0.10 | 100.00% | $0 | 0 | BSE |
| ● | Textus | Structured literary content for AI agents and audio, game and media production. Each purchase delivers the complete selected text unit, metadata, characters, scenes and editable baseline reading direction as immutable JSON. Pay per resource with x402 v2: 0.49 USDC on Base. No rendered audio or provider execution. | 1 | $0.49 | 100.00% | $0.98 | 1 | BSE |
| ● | ApiToll Crypto News | Pay-per-call API returning Cointelegraph crypto news: latest feed or full-text search, with article body and view counts, across 14 locales. bash.001 USDC per call, on Base or Solana. | 1 | $0.001 | 100.00% | $0.07 ·sh | 41 | BSE/SOL |
| ● | Skim | Skim is the x402-native clean reader for AI agents: send a URL, get back agent-ready markdown plus structured metadata in milliseconds. Pay per call in USDC over HTTP 402 - no signup, no API keys. In a production benchmark - 15 real paid calls to skim402.com over the public internet, each verifiable on-chain - Skim ran 2.3x faster than Firecrawl at the median. Its clean output also runs about 4x smaller than raw HTML, because it strips the ads, newsletter popups, and navigation your agent doesn't need. Endpoints for single reads, JS-rendered pages, batch reads, and structured extraction. | 4 | $0.002 | 100.00% | $0.89 | 19 | BSE |
| ● | Content Intelligence API | Web content API: extracts clean text, metadata and links from a URL, and returns AI summary, sentiment, topics, named entities and content type as structured JSON. Priced per call in USDC on Base or Solana. | 2 | $0.01 | 100.00% | $0.80 ·sh | 402 | BSE/SOL |
| ● | ZGAS-001 Zero-Gas Agent Commerce Field Guide | Existing ZGAS-001 pack: source-backed brief + 12 prompts + venues.csv. Pay 5 USDC on Base to 0x6cBC7E018A7773dc16a7e4b57E8D524332f4a880. | 1 | $5.00 | 100.00% | $0 | 0 | BSE |
| ● | Would Pay Again — Ad Slot Booking | Would Pay Again is a newsletter about the machine-payments (x402) economy, produced by paying x402 endpoints. It sells its own ad inventory the same way: two products (classified, sponsor card), 1-4 issue bookings, one fixed-price x402 route per SKU. Storefront and live availability at GET /api/ads (free). | 9 | $0.20 | 100.00% | $3 | 12 | BSE |
| ● | Tantra Authority — The Naked Press catalog | 49 signed AOP offers (courses, eBooks, products by Lawrence Lanoff / The Naked Press), each x402-buyable in USDC on Base mainnet. Catalog: https://index.adagencyforagents.com/v0/offers. Purchase pattern: https://api.tantra-authority.com/api/x402/{id}. | 1 | $19.97 | 100.00% | $0 | 0 | BSE |
| ● | Nesebar travel corpus | 330 verified travel and heritage guides to Nesebar and the Bulgarian Black Sea coast, in Bulgarian and English, as source markdown. Whole corpus $5.00, a single article $0.01, and ?since=<ISO date> returns only what changed at the same price. Free catalogue at /api/agent/manifest; OpenAPI at /openapi.json. | 2 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | PICO | Pico lets creators paywall any link — articles, downloads, media — with x402. Readers unlock content with a one-tap USDC micropayment on Base; no accounts, no cards. Publishers embed a widget or share a direct Pico link and get paid instantly to their wallet. | 2 | $0.10 | 100.00% | $0 | 0 | BSE |
| ● | Pinata | Account-free public IPFS pinning, paid per upload via x402. No signup or API key required. | 1 | $0.001 | 100.00% | $0.04 | 4 | BSE |
| ● | Dont Die page audits | Dont Die sells page-copy work over x402: hero rewrites, CTA and pricing audits, empty-state copy, about rewrites, first-week emails, competitor price tables, and landing teardowns. Official USDC on Base only. | 8 | $19.00 | 100.00% | $0 | 0 | BSE |
| ● | X402 Git | Marketplace for paid access to private git repositories and agent skills over x402. One USDC payment on Base buys a signed download of a security-scanned release zip; versions you own re-fetch free, forever. Every listing has a free manifest (file tree, licence, dependencies, scan result of the exact bytes) at /api/v/{owner}/{slug}, and the paid resource at /api/r/{owner}/{slug} answers 402 with x402 v2 requirements. No account or API key to buy. Full listing index in /openapi.json; buy-side MCP server at /api/mcp. | 3 | $5.00 | 100.00% | $0 | 0 | BSE |
| ● | makesPDF | Generate compliant PDFs (PDF/A-2A + PDF/UA-1) from markdown or a DSL — about a second, no headless browser. | 2 | $0.01 | 100.00% | $0.01 | 1 | BSE |
| ● | ForgeMesh Library | Paid public-domain knowledge base for AI agents: 61,000+ books, full-text search, chapters, quotes, ask-a-book retrieval Q&A, and 100+ curated subject shelves. x402 USDC on Base, from $0.003 per call. | 9 | $0.001 | 100.00% | $0.06 | 10 | BSE |
| ● | Proofivy Library (CryptoSlate + The Phoblographer) | x402 micropayment APIs for publisher content. Agents pay USDC on Base to fetch CryptoSlate and The Phoblographer articles (POST with content_url) plus listing endpoints. Humans stay free on the publisher sites. | 4 | $0.01 | 100.00% | $2 | 12 | BSE |
| ● | ProofDesk Website QA Audit Kit | A complete original website QA kit delivered as a 42,942-byte Markdown download for 10 USDC on Base via x402. Includes 102 identified checks, a report template, severity rubric, a clearly fictional worked example, delivery checklist and single-buyer commercial-use license. A free preview is available on the product page. This is a reusable digital product, not a custom audit or certification. | 1 | $10.00 | 100.00% | $0 | 0 | BSE |
| ● | Melssa | Checked English reference on living in Bulgaria, sold as markdown. | 1 | $0.50 | 100.00% | $0.02 | 2 | BSE |
| ● | Stacktree | Private HTML hosting for agents. POST HTML with a $0.50 x402 payment and get back a permanent, unguessable link. The paying wallet stays the update credential, so revisions are free: no account, no API key. $1 provisions a persistent API key for repeat publishing. | 2 | $0.50 | 100.00% | $55 | 19 | BSE/SOL |
| ◐ | Synthetic Universe | Digital goods for humans and AI agents: ambient music, ringtones, wallpapers, sleep club, venue licensing, podcast music, zines. Pay with USDC on Base via x402 — instant download after payment. 24 products, $0.05–$299. | 31 | $0.02 | 100.00% | $0.05 | 1 | ARB/AVX/BSE/POL/SOL |
| ● | Busker | Content-to-context toolkit for AI agents, live on Base mainnet. Seventeen deterministic pay-per-call tools: HTML to markdown (~80-85% token reduction), PDF to markdown, OCR for scanned PDFs (25 and 100-page tiers), structured JSON extraction, RAG chunking, sentence embeddings, cross-encoder reranking, URL fetch-and-clean, JSON/YAML/CSV/XML conversion, QR generation, image ops, object detection, ECB FX rates, phone validation, EVM tx decoding, and OFAC sanctions screening. $0.001-$0.03 USDC per call, settled via CDP. MCP server: npx -y busker-mcp. Machine-readable discovery at /.well-known/x402, /.well-known/agent.json, /openapi.json and /llms.txt. | 17 | $0.001 | 100.00% | $0.05 | 10 | BSE |
| ● | Mingle Gate | Pay per crawl access to Mingle Berry Media content. AI agents pay a small amount in USDC on Base before they read, and the payment settles non custodially straight to an address the publisher controls. It runs on the Internet Computer, speaks the x402 standard, settles on chain itself with no facilitator, and takes no cut. Machine readable discovery lives at /.well-known/x402. | 1 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | AgentNews | The frontpage of the agentic internet — AI agents bid to post, vote, and comment. All actions gated by x402 micropayments on Base. | 3 | $0.50 | 100.00% | $0 | 0 | BSE |
| ● | Musicwire | Pay-per-call MusicXML validation, MuseScore rendering, and automated QC for AI agents. Returns MP3 and MIDI; charges only after QC passes. Solo 0.25 USDC, ensemble 0.50 USDC on Base. | 2 | $0.10 | 100.00% | $3 | 1 | BSE |
| ● | 21millionpixels.art | A 21,000,000-tile shared pixel canvas on Base. Humans paint free; AI agents pay $0.005 per tile in USDC over x402 (v1 and v2), settled straight to the plot owner. Single-tile and batch painting, free reads of any region, OpenAPI, llms.txt, an agent-skills index and an MCP server. | 2 | $0.005 | 100.00% | $46 | 12 | BSE/SOL |
| ● | MUGEN Radio | Independent AI-run internet radio (24/7 lofi/ambient, publicly declared AI-generated, survival-mode budget shown live on mugenradio.com/status.html). Sells 44.1kHz WAV studio masters of released singles via x402 micropayments in USDC on Base. Catalog grown from 1 to 7 sellable tracks since first listed. | 7 | $0.15 | 93.75% | $0.40 | 1 | BSE |
| ● | Location grounding for agents | A paid x402 service that turns messy location clues into structured place data. Send a landmark, partial name, full address, neighborhood hint, coordinates, nearby reference, venue description, intersection, airport terminal, business name, or ambiguous human phrase. If the request is location-related, the service returns an x402 payment challenge. After payment, it resolves one location and returns the best available structured fields. | 1 | $0.10 | 93.33% | $0 | 0 | BSE/SOL |
| ● | Creative Tim shadcn/ui Blocks | Returns the source code of Creative Tim shadcn/ui blocks after a payment in USDC on Base, either as JSON via API or as an HTML page. Official demo by the operator: the same blocks are available for free on the Creative Tim site. | 2 | $0.01 | 93.33% | $12 | 10 | BSE |
| ○ | Content Moderation API | Wordlist-based profanity/explicit-content detection with basic obfuscation handling (leetspeak, repeated letters). Returns a flag, matched terms, and a redacted version. | 1 | $0.005 | 0.00% | $0.01 | 2 | BSE |
| ○ | molty.cash | Runs pay-per-view (CPM) content campaigns that pay creators in a Solana SPL or Base ERC-20 token, with views read from X or reported by the campaign owner's agent. Also exposes per-user endpoints for hiring individual creators. Payments settle on-chain via x402 on Base and Solana. | 3 | $1.00 | 0.00% | $1 | 1 | BSE/SOL |
| ○ | Signal Sprint | API x402 de pago por uso para convertir contexto de posicionamiento proporcionado por el cliente en una biografía profesional breve y estructurada. | 1 | $1.00 | 0.00% | $0.01 | 3 | BSE |
| ○ | Video Download AI | Downloads authorized public media URLs as MP4 video or MP3 audio with duration-based x402 payments in Base USDC. | 1 | $0.05 | 0.00% | $0.05 | 1 | BSE |
41 of 41 services ── category: Content ── all services