{"uid":"cap_onBL9ZImdxJlq35NrqXlu","slug":"theloopbreaker-com-4dbcb57f","name":"ERC-8004 Agent Identity Registry - Register Agent","description":"Register an AI agent on the ERC-8004 Identity Registry. Pay $0.10 in USDC and receive a fully-encoded unsigned transaction (calldata + gas estimate + chain ID) — sign locally in your wallet to become the registered agent. No private keys ever touch our servers.","url":"https://theloopbreaker.com/api/x402/actions/register-agent","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object"},"output":{"type":"object"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.100000","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.100000/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_fGEZP3Tt29PHFw-WJndbs","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Registers an AI agent on the ERC-8004 Identity Registry by returning a fully-encoded unsigned transaction (calldata, gas estimate, chain ID) ready for local wallet signing, in exchange for $0.50 USDC via x402 payment.","exampleAgentPrompt":"Register my AI agent named 'NexusBot' with wallet address 0x1234567890123456789012345678901234567890 on the ERC-8004 Identity Registry on Base — give me the unsigned transaction I can sign locally.","exampleUseCases":null,"resultDescription":"Returns a fully-encoded unsigned transaction object including calldata, gas estimate, and chain ID (Base, chain ID 8453) that the caller can sign locally with their own wallet to complete ERC-8004 agent registration. Private keys never leave the client.","failureModes":["Missing or invalid X-PAYMENT header — returns 402 with accepted payment schemes and asset details","Invalid or malformed wallet address — returns 400 validation error","Missing required fields (name or walletAddress) — returns 400 schema validation error","Insufficient USDC payment amount — returns 402 payment required","Chain ID not supported — returns 400 or 422 error"],"whenToPreferThis":"Use this endpoint when you need to register a new AI agent on the ERC-8004 on-chain identity registry and want a fully-prepared unsigned transaction without ever exposing private keys to a third party. Prefer this over manual contract interaction when you want a gas-estimated, calldata-encoded transaction ready for signing, and when you are operating on Base mainnet within the Vaultfire/theloopbreaker ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:43:59.469Z","isFirstParty":false}