{"uid":"cap_WiWPm7w83gMIEdWkxkjP1","slug":"synthora-contract-metadata-lookup-42e03918","name":"Synthora Contract Metadata Lookup","description":"Contract metadata: name/symbol/decimals, is-contract, is-erc20. Deterministic, Ed25519-signed.","url":"https://rpc-contract.hergertsynthora.com/service","method":"POST","headers":{},"bodySchema":{"type":"object","required":["address"],"properties":{"chain":{"type":"string","description":"chain"},"address":{"type":"string","description":"address"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/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_YyUWtIPgYDRUf5hv9BIkf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns EVM smart contract metadata (name, symbol, decimals, is-contract, is-ERC20) for a given chain and address, with Ed25519-signed deterministic responses","exampleAgentPrompt":"Can you look up the contract metadata for address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum — I want to know its name, symbol, decimals, and whether it's an ERC20 token?","exampleUseCases":[{"title":"Verify token legitimacy before swap","prompt":"Before I swap to this token at 0x2260fac5e5542a773aa44fbcfedf7c193bc2c599, can you verify it's actually a real ERC20 token and tell me its name, symbol, and decimals? I want to make sure it's not a fake contract."},{"title":"Bulk validate contract addresses","prompt":"I have a list of contract addresses across different chains and I need to quickly check which ones are actual deployed contracts versus EOAs, and which are ERC20 tokens. Can you look those up for me?"},{"title":"Audit token metadata consistency","prompt":"I'm auditing our token contracts and need to verify the on-chain name, symbol, and decimals match what we expect for several addresses on Base and Polygon. Can you pull that metadata for me?"}],"resultDescription":"Returns the contract's name, symbol, and decimals (for ERC20 tokens), boolean flags indicating whether the address is a deployed contract and whether it conforms to the ERC20 standard, all cryptographically signed with Ed25519 for deterministic verification.","failureModes":["Invalid or non-checksummed address returns error","Unsupported chain identifier returns error","Upstream RPC node failure returns no charge and an error response","Malformed request body returns 400","Exceeded free-tier calls without wallet header may require x402 payment"],"whenToPreferThis":"Use this endpoint when you need lightweight, signed contract metadata (name/symbol/decimals/is-ERC20) for EVM addresses without running your own node. Prefer it over generic RPC calls when you want cryptographic proof of the response via Ed25519 signature, or when cost is a concern (first 3 calls free per wallet, then $0.003 USDC).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:36:27.668Z","isFirstParty":false}