{"uid":"cap_KtSqnuCbGPS8i4-HwxNfA","slug":"prime-agent-x402-intelligence-token-metadata-lookup-df7af5d9","name":"Prime-Agent x402 Intelligence – Token Metadata Lookup","description":"x402-paid Base intelligence with free machine-readable discovery.","url":"https://prime-agent-x402-intelligence.onrender.com/token/metadata/%7Baddress%7D?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"token":"0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","fields":{"name":"Example Token","symbol":"TOKEN","decimals":18},"missing":[],"network":"eip155:8453","snapshot":{"network":"eip155:8453","block_hash":"0x1111111111111111111111111111111111111111111111111111111111111111","observed_at":1760000000,"block_number":12345678},"is_contract":true,"evidence_ids":["example-evidence-id"]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Xw7BuUwMPDRyC-oUFsHBZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns on-chain metadata (name, symbol, decimals, contract status, block snapshot) for a given ERC-20 token address on Base mainnet, paid via x402 micropayment.","exampleAgentPrompt":"Look up the on-chain metadata — name, symbol, and decimals — for the token at address 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on Base mainnet, and include the block snapshot so I have provenance.","exampleUseCases":[{"title":"Verify unknown token before swap","prompt":"Before I swap into it, can you pull the on-chain name, symbol, and decimals for the token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base mainnet? I want to make sure it's actually USDC and see which block the data was read from."},{"title":"Enrich DeFi portfolio with token names","prompt":"I have a list of Base mainnet contract addresses from my wallet — starting with 0x4200000000000000000000000000000000000006 — can you fetch the token name and symbol for each so I can label my portfolio properly?"},{"title":"Audit token contract legitimacy","prompt":"Check whether 0x50c5725949a6f0c72e6c4a641f24049a917db0cb is actually a deployed contract on Base and return its token metadata along with the block hash so I can audit when this was observed."}],"resultDescription":"A JSON object containing the token address, a fields object with name, symbol, and decimals, a list of any missing fields, the network identifier (eip155:8453), a snapshot with block hash, block number, and observed_at timestamp, a boolean is_contract flag, and an array of evidence IDs for provenance.","failureModes":["Address not a contract: is_contract returns false, fields may be empty or missing","Invalid address format: request fails with a 4xx error","Token missing metadata fields: missing array lists unpopulated fields","x402 payment failure: 402 response if micropayment not processed","Network unavailable: 5xx if Base RPC is unreachable","Non-Base address: results may be empty if contract only exists on other chains"],"whenToPreferThis":"Choose this endpoint when you need verified, block-anchored token metadata (name, symbol, decimals) specifically on Base mainnet (eip155:8453), with cryptographic provenance via block hash — particularly when auditability or downstream trust in the data source matters. Prefer over generic blockchain explorers when you need structured JSON output with evidence IDs and missing-field detection, or when operating in an x402-compatible micropayment environment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:34:50.663Z","isFirstParty":false,"canonicalSlug":"prime-agent-x402-intelligence-token-metadata-lookup-df7af5d9"}