{"uid":"cap_jpq7imX_0djpVCPbulU_b","slug":"tollkit-chain-token-attestation-check-98780b8d","name":"Tollkit Chain Token Attestation Check","description":"Pay-per-call product page extraction. No account, no API key: pay in-band with x402 in USDC on Base or Solana.","url":"https://attest.tollkit.dev/chain/check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"enum":["base","ethereum","solana"],"type":"string","default":"base","description":"Which chain to read: \"base\" (default), \"ethereum\" or \"solana\"."},"token":{"type":"string","pattern":"^(0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})$","description":"ERC-20 contract or SPL mint."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FT9DoO6ffpkFNZ-F_p2tl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks/attests a token contract address on a specified blockchain (Base, Ethereum, or Solana) and returns on-chain verification data, paid per-call via x402 in USDC.","exampleAgentPrompt":"Can you attest the token contract 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum and tell me if it checks out?","exampleUseCases":[{"title":"DeFi token legitimacy check","prompt":"I found a token at address 0x1234abcd... on Base — can you run an attestation check on it and tell me if it looks legit before I interact with it?"},{"title":"Solana SPL mint verification","prompt":"Can you check the attestation status of this Solana mint address EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v for me?"},{"title":"Ethereum contract due diligence","prompt":"Before I add this token to our treasury list, can you verify the ERC-20 contract 0x6B175474E89094C44Da98b954EedeAC495271d0F on Ethereum and return the attestation result?"}],"resultDescription":"Returns an attestation or verification result for the given token contract address on the specified chain — including whether the token is recognized, any on-chain metadata, and verification signals. Paid per-call at $0.004 USDC via x402 with no account or API key required.","failureModes":["Invalid token address format (must match ERC-20 0x hex or SPL base58 pattern) — returns validation error","Unsupported chain value — only 'base', 'ethereum', or 'solana' accepted","Payment failure via x402 (insufficient USDC balance or unsupported payment chain) — returns 402 Payment Required","Token contract not found on specified chain — returns empty or not-found attestation","Network or RPC timeout when querying chain data"],"whenToPreferThis":"Use this endpoint when you need a frictionless, pay-per-call on-chain token attestation with no account setup — ideal for agents that encounter unknown token addresses and need instant verification on Base, Ethereum, or Solana without managing API subscriptions. Prefer this over traditional token-info APIs when you want x402 micropayment billing and multi-chain coverage in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:35:19.585Z","isFirstParty":false,"canonicalSlug":"tollkit-chain-token-attestation-check-98780b8d"}