{"uid":"cap_ujoSJkY5P45dXu3krr-R5","slug":"chainray-agent-discovery-registry-7a4943f9","name":"ChainRay Agent Discovery Registry","description":"The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.","url":"https://chainray.online/agent-card/discover","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"],"type":"string"},"queryParams":{"type":"object","properties":{"chain":{"type":"string","description":"Blockchain network (e.g., base, ethereum, polygon)"}}}},"additionalProperties":false}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"chain":"ethereum"}}},"response":{"_proof":{"chain":"ethereum","dataHash":"c386a0af058219769158535d0ba333e19a37c1954ab945f8b93d7b667120778a","blockHash":"0x7ea60ba5c3edf5a31b2c8f8785e032640c16d3538fdd94db16501fda995bd9cb","chainName":"Ethereum","blockNumber":25342521,"proofVersion":"3.0","blockTimestamp":1781762483,"proofTimestamp":1781762487720},"agents":[],"filters":{"chain":"ethereum","keyword":null,"capability":null},"returned":0,"standard":"A2A v1.0 + ChainRay Registry","timestamp":1781762487513,"oracleType":"agent-discovery","registrySize":0,"totalMatched":0}},"exampleRequest":{"chain":"ethereum"},"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_BZ4yHrmiZ71Q_CVefIP0M","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Discovers and lists registered AI agents in the ChainRay on-chain agent registry, filtered by blockchain network, with verifiable on-chain proofs","exampleAgentPrompt":"Can you show me which AI agents are currently registered on Ethereum in the ChainRay registry, along with the on-chain proof?","exampleUseCases":[{"title":"Find specialized agents across multiple chains","prompt":"I'm building a multi-chain DeFi bot. Can you check the ChainRay registry and show me what AI agents are available on Polygon, Arbitrum, and Optimism so I can see what tools are already out there?"},{"title":"Verify agent registry authenticity for integration","prompt":"Before we partner with agents from the ChainRay registry on Base, I need to confirm they're legitimate. Can you pull the registered agents on Base and include the cryptographic proof so we know the data hasn't been tampered with?"},{"title":"Monitor agent ecosystem growth by network","prompt":"I'm tracking how the AI agent ecosystem is developing. Can you check the current size of the ChainRay registry on Solana and show me how many agents are registered there right now with proof of that count?"}],"resultDescription":"Returns an array of registered AI agents matching the filter, the total registry size, how many matched, applied filters (chain, keyword, capability), a timestamp, and a cryptographic on-chain proof object containing block number, block hash, data hash, chain name, and proof version for verifiability.","failureModes":["Invalid or unsupported chain name returns empty results or error","Registry may be empty (registrySize: 0, returned: 0) if no agents are registered","Network timeout or upstream RPC failure may cause delayed or failed proof generation","Payment not received (x402 protocol failure) results in 402 response before data is served"],"whenToPreferThis":"Use this endpoint when you need to discover AI agents registered on a specific blockchain network with cryptographic, on-chain verifiability. Prefer this over generic agent directories when you require tamper-evident proof of registry state tied to a specific block, or when operating in a multi-chain context and need to enumerate agents by chain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:40:15.857Z","isFirstParty":false}