x402-protocol-integration

Detects and redacts PII (emails, phones, SSNs, names, addresses) from text. $0.02/call via x402.

Fuzzy entity resolution and dedupe for names, addresses, and company records. $0.02/call via x402.

Live x402 endpoint trust/diligence check before you pay it. $0.02/call via x402.

Low-friction $0.01 trial of the x402 payment flow for agents. Send a prompt (up to 500 chars) and get a quick AI response (max 150 tokens) via GPT-6. Ideal for first-time buyers to test agent-to-agent payments end to end.

Governed agent execution: x402 payments, budgets, receipts, verification, and audit.

x402 spend cap and allowance check by Liquid Logic X: call it before paying an x402 endpoint. Input: wallet (the Liquid Logic X treasurer, 0xEA24...) and optional endpoint URL. Output: JSON { allowed, reason, remainingUsdc, capUsdc, spentUsdc } from the published spend policy (allowlist, max per payment, UTC daily cap) and public ledger. Omit endpoint for remaining cap + allowlist. $0.001 USDC on Base. Site: https://liquidlogicx.com

Local insider tips for ski and mountain travel from people on the ground, each with its resort, country and date (e.g. early glacier snowpark openings). One payment returns every current tip; ?id=<tip-id> returns one. Tips are in the local language (currently Slovak), plain text.

Get x402 payment network stats and volume

Probe one target endpoint's x402 402 handshake and return a signed verdict: ok | drift | payto_rotated | unreachable | invalid. Body: {url, expected?: {payTo?, max_price_usd?, network?}}. 'expected' only produces informational expected_mism

Pay-per-call MCP tools via x402 (USDC on Base): QR codes, images, text analysis, web fetch.

Name the endpoint paths for a service that will not self-describe; each is probed and only valid x402 endpoints are listed.

Send one message to every registered agent matching a capability or a named group, in a single x402 call. Use it to find help: address 'capability:summarization' and the matching agents receive it. Fan-out is capped so this cannot become a spam primitive.

x402 End-to-End Payment Test ($0.001). x402 end-to-end payment test for $0.001: pay with USDC on Base, Polygon, Arbitrum or Solana and get an itemized receipt back — network, asset, amount, payer, settlement transaction with explorer link, and which facilitator settled it. A failed payment returns the exact reason. Free preview at /api/x402/test/free.

x402 Adoption Report — how the agent payments economy is growing. x402 adoption report: how big the agent payments economy is right now — paid resources, sellers, resources and sellers with real demand (20+ paying agents), resources called in the last 7 days, paid calls and estimated revenue over 30 days, median price, paying agents by network (Base, Solana, Polygon, Arbitrum...), top categories and resources, plus recent x402 and agent-payments news.

step-by-step x402 settlement trace + fix list

Classifies products into HS/HTS customs codes for import/export workflows. $0.10/call via x402.

x402 market report (PDF) — paid per download

Catalog of paid Grok x402 routes. Free seed so agents can find /alpha/full.

x402 probe: requests a URL without paying and decodes its 402 payment terms: x402 version, accepted schemes and networks (CAIP-2), price in USDC (atomic and human), payTo address, asset contract, max timeout, resource description, and whether the terms came from the PAYMENT-REQUIRED header or the JSON body. Tells an agent exactly what a paid API costs before it commits. $0.01 per probe.

On-chain address identity label lookup on Base (100k+ curated entity labels). Pay per call with USDC via x402.

Retrieves thesis information or analysis related to the x402 classification or category.

x402 endpoint check: validate an x402 endpoint and audit its Bazaar listing before you pay for it or list it. One unpaid probe (never pays the target) grades the 402 challenge, schemas, examples, name, tags and latency, and adds Coinbase's validator verdict, the live Bazaar listing (30-day calls, payers, stale metadata) and search rank for its own name and tags. Returns score, grade and prioritized fixes. 0.005 USDC/call on 6 networks; failed calls (400/422/503) are free.

x402-paid endpoint: an unpaid request returns HTTP 402 with a PAYMENT-REQUIRED header (base64 JSON payment requirements). Pay with any x402 client and retry with the X-PAYMENT header. Responds 202 immediately; poll the free result_url for t

x402-paid endpoint: an unpaid request returns HTTP 402 with a PAYMENT-REQUIRED header (base64 JSON payment requirements). Pay with any x402 client and retry with the X-PAYMENT header. Response is delivered synchronously; you are never charg