{"uid":"cap_bNL9n_XlmgDLBzDlitg0_","slug":"semilla1-lab-txcheck-token-balances-4b7942d9","name":"Semilla1 Lab txcheck - Token Balances","description":"Resumen de una transacción de Base: estado, gas, transferencias USDC. Pago x402 v2: 0.01 USDC en Base (lote de hasta 10: 0.05 USDC; /balance, /tokens, /receipt: 0.005 USDC).","url":"https://semilla1-txcheck.netlify.app/tokens?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Dirección EVM (0x + 40 hex)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["address","tokens","checked"],"properties":{"tokens":{"type":"array","items":{"type":"object","required":["symbol","token","raw","decimals","amount"],"properties":{"raw":{"type":"string"},"token":{"type":"string"},"amount":{"type":"number"},"symbol":{"type":"string"},"decimals":{"type":"integer"}}}},"address":{"type":"string"},"checked":{"type":"array","items":{"type":"string"}}}}}}}},"responseSchema":{"type":"json","example":{"tokens":[{"raw":"2000000","token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":2,"symbol":"USDC","decimals":6}],"address":"0xa4ba7f4FCA58C50df7232BA65E8D794F78Dc65bc","checked":["USDC","USDbC","WETH","cbETH","wstETH","cbBTC","DAI","EURC","AERO","VIRTUAL","DEGEN","BRETT"]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_AczNIYMJcZ46tNIZGbT-z","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns token balances for a given EVM address on Base, checking USDC, WETH, cbETH, and other major Base tokens.","exampleAgentPrompt":"What tokens does wallet 0xa4ba7f4FCA58C50df7232BA65E8D794F78Dc65bc hold on Base? Check for USDC, WETH, and other major tokens.","exampleUseCases":[{"title":"DeFi portfolio snapshot for a Base wallet","prompt":"Can you check what tokens wallet 0xa4ba7f4FCA58C50df7232BA65E8D794F78Dc65bc holds on Base? I want to see if it has any USDC, WETH, or cbETH."},{"title":"Verify USDC balance before payment","prompt":"Before I send funds, can you confirm whether address 0x1234567890abcdef1234567890abcdef12345678 has any USDC balance on Base?"},{"title":"Monitor airdrop recipient token holdings","prompt":"Check the token balances on Base for address 0xAbCdEf1234567890AbCdEf1234567890AbCdEf12 — I want to see if they received BRETT, AERO, or VIRTUAL from the airdrop."}],"resultDescription":"Returns a JSON object with the queried address, a list of tokens checked (USDC, USDbC, WETH, cbETH, wstETH, cbBTC, DAI, EURC, AERO, VIRTUAL, DEGEN, BRETT), and for each token with a non-zero balance: the token symbol, contract address, decimal precision, raw balance string, and human-readable amount.","failureModes":["Invalid or malformed EVM address (not matching ^0x[0-9a-fA-F]{40}$) returns an error","Address has no token balances — returns empty tokens array","RPC or Base node connectivity issues may cause delayed or failed responses","Payment not included or insufficient — x402 payment of 0.005 USDC required per call"],"whenToPreferThis":"Choose this endpoint when you need to quickly check which major Base-ecosystem tokens a specific EVM wallet holds, especially when you want a pre-curated list of top Base tokens (USDC, WETH, cbETH, AERO, BRETT, etc.) checked in a single call rather than querying individual token contracts. Best for portfolio lookups, pre-payment balance verification, and airdrop monitoring on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:38:37.037Z","isFirstParty":false,"canonicalSlug":"semilla1-lab-txcheck-token-balances-4b7942d9"}