payment-ready until 2026-08-20
Pay-per-call premium Base-network data feed for AI agents, settled in USDC on Base. Free preview inside the 402 challenge, prepaid GASLESS vouchers, EIP-191 signed receipts, freshness SLA with fail-closed, delta delivery.
Pay from $0.01 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
first settlement 2026-07-27 · $0.02 all-time · settled via coinbase, payAI
ASSESSMENT
updated 3h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 2175ms
- avg response
- 927ms
- total checks
- 1,983
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.01 (p53 in Data)
- price (min)
- $0.01
- category percentile (min)
- p53 in Data
- endpoints / prices
- 1 / 1
- model
- flat
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 24d
- registrar
- Cloudflare, Inc.
- hosting
- custom
- domain created
- 2026-07-19
Identity facts, not a risk score.
traction $0.02 30d · 1 buyers · top buyer 100%
- volume 30d
- $0.02
- buyers 30d
- 1
- settlements 30d
- 2
- first settlement
- 2026-07-27
- last settlement
- 2026-07-28
- top buyer share
- 100% of 30d volume
- trend 7d vs 30d
- 0.00x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $0.02
- settlements all-time
- 2
- median settlement 30d
- $0.01
- max settlement 30d
- $0.01
- settled via
- coinbase ($0.01, 1 tx), payAI ($0.01, 1 tx)
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
CHANGES
2 events, detecting since 2026-07-24Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.
changes schema changed 17d ago (2 since 2026-07-24)
schema changed · 17d ago
schema removed GET /api/v1/protected-data exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 1 application/json
schema removed GET /api/v1/protected-data obolpay-tx-receipt eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 1 application/json
schema added GET /api/v1/protected-data exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 2
schema changed · 18d ago
schema added GET /api/v1/protected-data obolpay-tx-receipt eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 1 application/json
WHAT IT DOES
ai-derivedProvides a premium data feed for AI agents with multi-category content and delta delivery
- category
- data-feed
- in
- query params
- auth
- api key
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /api/v1/protected-data | Live Base-network premium data feed for AI agents (multi-category, delta delivery, signed receipts, free preview). | $0.01 | Base | USDC | header |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /api/v1/protected-data returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://x402.obolpay.xyz/api/v1/protected-data'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "支払いが必要です。payment情報に従い標準的なUSDC transferで送金し、X-Payment-Tx-Hash / X-Payment-Invoice-ID / X-Payment-Signature を提出してください。",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0d444D405dC168f29D66891383aa3542F5030057",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.obolpay.xyz/api/v1/protected-data",
"mimeType": "application/json",
"description": "Verifiable data feed for AI agents. Buy this if you need to: (a) resolve a Japanese business day / T+N settlement or invoice due date — today's bank & TSE calendar with T+1..T+20 already computed, including the Dec 31-Jan 3 closure that the official holiday source omits (?types=jp-business-day); (b) value something in a population-weighted unit of account at today's ECB FX, byte-for-byte reproducible (?types=openunit); (c) pick a local-LLM backend from a measured equivalence matrix (?types=llm-equivalence). Also: JP-equity event-cohort membership data (point-in-time; not a trading signal), AI provenance/trust artifact pack, governed-AI spending benchmarks. Multi-category (?types=), delta delivery, signed receipts, free preview."
},
"x402Version": 2
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/obolpay-x402-gateway/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-07-27 · last up 2026-08-13
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (18) live · click to expand
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