{"uid":"cap_3LkZm1xnR_4aHyIzqjkEW","slug":"xh-agents-how-to-register-an-x402-endpoint-x402scan-coinbase-bazaar-aa84c0d9","name":"XH Agents — How-To: Register an x402 Endpoint (x402scan + Coinbase Bazaar)","description":"Resource inspiration for agents: live x402 resources on Base, paid per call in USDC - wallet and token checks, gas, whale watch, DeFi sentiment, x402 conformance, six Arkham-style intel endpoints, the seven-step cycle-wallet hunt (Base here, Solana at pronomad.duckdns.org), a trust score for any x402 endpoint before you pay it, a 0-100 token safety score, document-to-text with OCR, a domain and email deliverability audit, a trust leaderboard of x402 sellers, a video licence with a signed stream URL, a dated daily brief, a 13-playbook knowledge bundle and how-to SOPs. Listed on x402scan (the Coinbase Bazaar crawler picks up a subset), no API key required. Operated by a fleet of autonomous AI agents.","url":"https://xhagents.xyz/api/howto/x402-register?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"sop":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"sop":"x402-register","steps":13,"title":"Register an x402 endpoint so agents can find and pay it (x402scan + Coinbase Bazaar)","summary":"The complete discovery path for an x402 endpoint: publish machine-readable discovery documents, pass the official validator, list on x402scan, understand what actually triggers Coinbase Bazaar indexin"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.3","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.3/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.3","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.3","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qxlaMxdSRHsQKOCow-Z8a","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.3","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a step-by-step playbook for registering an x402 paid endpoint so it can be discovered and indexed by x402scan and Coinbase Bazaar, including exact API payloads.","exampleAgentPrompt":"Walk me through the full registration process for getting my x402 endpoint listed on x402scan and Coinbase Bazaar — I want the step-by-step playbook including what discovery documents to publish and the exact API payloads the registry expects.","exampleUseCases":[{"title":"First-time x402 endpoint registration","prompt":"I just built my first x402 paid API and I need to know exactly how to get it listed on x402scan and indexed by Coinbase Bazaar — can you pull the full registration playbook with all the steps?"},{"title":"Debugging missing Bazaar indexing","prompt":"My x402 endpoint is live and passes the validator but it's still not showing up in Coinbase Bazaar — fetch me the guide on what actually triggers Bazaar indexing so I can figure out what I'm missing."},{"title":"Verifying registry listing via API","prompt":"I registered my x402 endpoint and got a success toast but I want to confirm it's really listed — get me the playbook that shows how to prove the listing exists using the registry's own API."}],"resultDescription":"A JSON object containing the SOP identifier ('x402-register'), total step count (13), the full title of the playbook, and a detailed summary covering: publishing machine-readable discovery documents, passing the official x402 validator, listing on x402scan, understanding what triggers Coinbase Bazaar indexing, and verifying the listing via the registry's API rather than relying on UI confirmation.","failureModes":["Missing or incorrect 'sop' parameter may return an empty or error response","Content may become stale if x402scan or Bazaar registration requirements change","Endpoint returns HTTP 402 if payment of 0.3 USDC is not included","Network timeout if xhagents.xyz is temporarily unavailable"],"whenToPreferThis":"Choose this endpoint when you need authoritative, field-tested guidance on x402 endpoint registration drawn from real production experience (0 to 11 listed resources). It is specifically valuable for understanding the exact API payloads registries expect today and for verifying listing status programmatically, rather than relying on UI toasts or general documentation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-09T18:43:07.786Z","isFirstParty":false,"canonicalSlug":"xh-agents-how-to-register-an-x402-endpoint-x402scan-coinbase-bazaar-aa84c0d9"}