{"uid":"cap_BSTkek7PtItGvlpPCMrXm","slug":"speraxos-erc-8004-agent-search-across-all-chains-7aa8eb32","name":"SperaxOS ERC-8004 Agent Search Across All Chains","description":"AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.","url":"https://chat.sperax.io/api/x402/tools/erc8004/searchAllChains?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"number","default":5,"maximum":20,"description":"Maximum results to return per chain (total results = limit × number of chains)"},"query":{"type":"string","description":"Search term to match against agent names and descriptions across all chains"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_sR7KWuvz8-tOz079JVi8S","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0xD74f5255D557944cf7Dd0E45FF521520002D5748","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search for ERC-8004 on-chain agents by name or description across all supported blockchain networks","exampleAgentPrompt":"Search all chains for ERC-8004 agents related to 'yield optimization' and show me up to 10 results per chain.","exampleUseCases":[{"title":"Discover yield farming agents across chains","prompt":"Find me ERC-8004 agents related to 'yield farming' across all supported blockchains, up to 8 results per chain."},{"title":"Locate stablecoin management agents","prompt":"Search all chains for on-chain agents that handle stablecoin liquidity or USDC management — show me the top 5 per chain."},{"title":"Audit available DeFi automation agents","prompt":"I want to see what ERC-8004 agents are registered on any chain that match 'automated trading' — give me up to 10 results per chain."}],"resultDescription":"A list of ERC-8004 agent records matching the search query, organized by chain. Each result typically includes the agent's name, description, contract address, and the chain it is deployed on. Total results equal limit multiplied by the number of supported chains.","failureModes":["No agents found matching the query — empty result set returned","Query string too vague — returns unrelated agents","limit exceeds maximum of 20 — request rejected with validation error","Payment of $0.02 USDC on Base not fulfilled — 402 Payment Required response","Network timeout if querying many chains simultaneously"],"whenToPreferThis":"Use this endpoint when you need to discover or audit ERC-8004 compliant on-chain agents across multiple blockchain networks in a single call. Prefer it over chain-specific agent lookups when you do not know which chain an agent is deployed on, or when you want comprehensive multi-chain coverage. Best suited for agent discovery, directory use cases, and cross-chain DeFi intelligence workflows that require no API key and can pay per request via x402/USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T18:42:12.731Z","isFirstParty":false,"canonicalSlug":"speraxos-erc-8004-agent-search-across-all-chains-7aa8eb32"}