x402-protocol-integration

Echo text with length (probe channel 2). Call when you verify a second pay→deliver path with a trivial payload. Returns echo text, length, echo=2 for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Screen a person, entity, vessel or aircraft name against the EU, UK, UN, OFAC (SDN and Consolidated), Swiss, Australian and Canadian sanctions lists, refreshed daily. Returns the matching sanctioned parties with match scores, programs, birth dates and list references, best match first; matches are name similarity and should be reviewed. No account, API key or subscription required; x402 clients handle USDC payment automatically. Requests missing the name field or containing other fields are rejected with HTTP 400 before payment. Price: $0.01 USDC per request.

x402 service registry

Company name, exchange, market cap, share class, SIC code, address, and other reference fields for a US-listed ticker. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Known peer addresses from the node's address manager. Bitcoin Core getnodeaddresses.

FDA adverse event reports (FAERS) for a drug from openFDA, newest first: report id, date received, seriousness (death, hospitalisation, life-threatening), reactions, drugs taken and indication. ?q=metformin; 5 by default, up to 25 with &limit=. Cached for up to 24 hours. Reports are not proof the drug caused the event.

FDA food recalls (enforcement reports) from openFDA, newest first: matches product, firm or reason. Each recall has its number, class (I-III), status, reason, firm, dates, distribution and quantity. ?q=listeria; 10 by default, up to 25 with &limit=. Answers are cached for up to 24 hours.

FDA drug recalls (enforcement reports) from openFDA, newest first: matches product, firm, reason, brand or generic name. Each recall has its number, class (I-III), status, reason, firm, dates, distribution and quantity. ?q=valsartan; 10 by default, up to 25 with &limit=. Answers are cached for up to 24 hours.

Paid seller-side readiness and x402 contract verification for providers that want AgentResolver distribution. Produces a bounded registryEntry only after settlement and technical checks.

Procure a missing capability across AgentResolver, provider manifests, 402 Index, PayAI, Circle and MCP, then perform at most two unpaid live verification probes for supported MCP/x402 candidates before returning an evidence-backed recommendation. L402/MPP remain discovery-only until protocol-specific verifiers exist.

Cover the gateway fee for a premium report analysis. Settled via X402 Top Agent Gateway Fee.

Card BIN Lookup x402 — BIN lookup - resolve issuer, scheme, type and country for a card BIN

Single-call snapshot of a ticker's current state: last quote, last trade, today's OHLC + volume + VWAP, previous-day OHLC, today's change vs previous close. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

x402 Doctor checkup of your own endpoint: payment request, prices, payTo and response time; once you prove you own the host (publish the token from /v1/doctor/verify at /.well-known/x402-doctor.txt), also a leak check: does it serve data without payment.

Paid Watchdog registration: 30 days of signed monitoring for one x402 endpoint

Agent Vetting Bureau — Deeper deterministic probe: x402 manifest compliance, live challenge behaviour, rate-limit headers, idempotency support, security headers. Params: url.

x402 conversion reality — do payment quotes ever become payments? Measured quote-to-pay rates by category and by price band, from tens of thousands of observed 402s. Price your endpoint against what the market actually converts at instead of guessing, and rule out the protocol-level defects that silently zero a funnel before you blame your price. HOW TO CALL: GET /api/demand/conversion?days=30 PARAMETERS: days — lookback window, 1-90 (default 30) RESPONSE: overall funnel, by_category[] and by_price_band[] conversion rates, plus the measurement method so you can judge the number. PRIVACY: aggregate-only, reported by category and price band, never per endpoint. PRICING: $0.05 per call.

Tickers related to the given symbol based on news and analyst coverage co-occurrence, a quick peer set for comparative analysis. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

Identischer Alias der Adressklassifikation für x402-Discovery. Die verifizierte Zahleradresse ist der Eigentümer; Ergebnisse und gespeicherte Daten sind strikt auf diesen Zahler begrenzt.

EIP-712 typed-data digest — Genesis402 / UnyKorn Operator Network

Use as a low-cost end-to-end x402 canary before higher-value calls. A successful paid response proves Sharvora delivery and returns release, network, time and a response receipt.

SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {"since":"<cursor|ISO>","slug":"<slug>","limit":<=200}.

Settler-frame census of the x402 economy for any UTC window: per-facilitator txs, USDC, buyers and sellers, the unattributed residual, breadth, and coverage computed from the scan manifest.

Balance of one specific SPL token account — Genesis402 / UnyKorn Operator Network