{"uid":"cap_Ra5LcGOYG7bLUN1v35aLu","slug":"fastx402-erc-20-token-info-lookup-3933d983","name":"FastX402 ERC-20 Token Info Lookup","description":"200 pay-per-call tools for AI agents, from $0.001 per request in USDC on Base or Solana with x402. No account, no API key.","url":"https://fastx402.tools/erc20-info?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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"],"type":"string"},"queryParams":{"type":"object","required":["token"],"properties":{"chain":{"enum":["base","ethereum"],"type":"string","description":"base or ethereum (default base)"},"token":{"type":"string","description":"Token contract address (0x + 40 hex)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"name":{"type":"string"},"chain":{"type":"string"},"token":{"type":"string"},"symbol":{"type":"string"},"decimals":{"type":"integer"},"total_supply":{"type":"string"},"total_supply_raw":{"type":"string"}}}}}}},"responseSchema":{"type":"json","example":{"name":"USD Coin","chain":"base","token":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","symbol":"USDC","decimals":6,"total_supply":"4403879551.831094","total_supply_raw":"4403879551831094"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_mEJEO4KIl7IVMuP7omtD1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches on-chain metadata for an ERC-20 token contract (name, symbol, decimals, total supply) on Base or Ethereum.","exampleAgentPrompt":"What's the name, symbol, decimals, and total supply of the ERC-20 token at contract address 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 on Base?","exampleUseCases":[{"title":"Identify unknown token contract","prompt":"I found this contract address 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 on Ethereum — can you tell me what token it is, its symbol, and how many decimals it uses?"},{"title":"Verify token supply before DeFi interaction","prompt":"Before I interact with this DeFi protocol, can you check the total supply of the token at 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 on Base so I know how large the float is?"},{"title":"Enrich token data for portfolio tracker","prompt":"I'm building a list of tokens in my wallet — can you fetch the name, symbol, and decimals for the token contract 0x4200000000000000000000000000000000000006 on Base so I can display it properly?"}],"resultDescription":"A JSON object containing the token's name, symbol, number of decimals, human-readable total supply, raw total supply integer string, and the chain it was queried on. Example: {\"name\":\"USD Coin\",\"chain\":\"base\",\"token\":\"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913\",\"symbol\":\"USDC\",\"decimals\":6,\"total_supply\":\"4403879551.831094\",\"total_supply_raw\":\"4403879551831094\"}.","failureModes":["Invalid or non-existent contract address returns an error or empty response","Contract address exists but is not an ERC-20 token (e.g. NFT or EOA) may return unexpected data or error","Unsupported chain value (anything other than 'base' or 'ethereum') results in a validation error","Network or RPC congestion may cause slow or failed lookups","Payment failure via x402 protocol blocks the request before execution"],"whenToPreferThis":"Use this endpoint when you need on-chain ERC-20 token metadata (name, symbol, decimals, total supply) for a known contract address on Base or Ethereum, especially in a no-account, no-API-key, pay-per-call context via x402. Prefer this over general blockchain explorers when you need structured JSON output for agent pipelines, or when you want micropayment-based access without registration overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T06:47:56.980Z","isFirstParty":false,"canonicalSlug":"fastx402-erc-20-token-info-lookup-3933d983"}