{"uid":"cap_Gno374IJVsQSawLref8nk","slug":"tollkit-chain-balance-70d5c3bf","name":"Tollkit Chain Balance","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://web.tollkit.dev/chain/balance?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\"."},"tokens":{"type":"array","items":{"type":"string","pattern":"^(0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})$"},"maxItems":20,"description":"Extra ERC-20 contracts (or SPL mints on Solana) to include."},"address":{"type":"string","pattern":"^(0x[0-9a-fA-F]{40}|[1-9A-HJ-NP-Za-km-z]{32,44})$","description":"Wallet (or contract) address to check."}}},"responseSchema":null,"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_51TabloriUeKF0VLiV-Be","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":"Returns native token and ERC-20/SPL token balances for a wallet or contract address on Base, Ethereum, or Solana.","exampleAgentPrompt":"Check the Base chain balance for wallet 0xAbCd1234...5678, and also include the USDC token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","exampleUseCases":[{"title":"DeFi portfolio snapshot","prompt":"What's the current balance of 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe on Ethereum, including the USDT and USDC token balances?"},{"title":"Solana wallet audit","prompt":"Check the SOL balance and all SPL token holdings for wallet 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU on Solana."},{"title":"Smart contract treasury check","prompt":"Look up the ETH and WETH balance held by the contract at 0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f on Ethereum."}],"resultDescription":"Returns a structured response with the native token balance (ETH, SOL, etc.) and balances for any requested ERC-20 or SPL token contracts associated with the queried address on the specified chain.","failureModes":["Invalid address format returns a validation error","Unsupported chain value causes rejection","Requesting more than 20 token contracts is rejected","Network/RPC errors may cause intermittent failures","Unknown token contract addresses return zero balance","Payment via x402 fails if wallet has insufficient USDC"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call on-chain balance lookup without setting up an account or managing API keys — especially useful for one-off agent tasks on Base, Ethereum, or Solana where the x402 micropayment model fits. Prefer it over full blockchain indexers or account-based APIs when simplicity and low cost per call matter more than high-volume throughput.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:36:25.039Z","isFirstParty":false,"canonicalSlug":"tollkit-chain-balance-70d5c3bf"}