{"uid":"cap_p7CTEzmG4VIU4nYm-G4gV","slug":"anywaypossible-com-base-wallet-balance-05192dd8","name":"anywaypossible.com Base Wallet Balance","description":"Live Base wallet balance for AI agents. Returns native ETH and Circle USDC balances, atomic values, block height, contract address, and observation time for any EVM address. Includes a machine-readable upgrade path to treasury readiness for spend, gas-reserve, and wallet-health decisions. No API key.","url":"https://anywaypossible.com/api/base-balance","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["address"],"properties":{"address":{"type":"string","pattern":"^0x[a-fA-F0-9]{40}$","description":"EVM wallet address on Base"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["address","network","chainId","eth","usdc","ethAtomic","usdcAtomic","blockNumber","observedAt"],"properties":{"eth":{"type":"string"},"usdc":{"type":"string"},"address":{"type":"string"},"chainId":{"type":"integer"},"network":{"type":"string"},"ethAtomic":{"type":"string"},"observedAt":{"type":"string","format":"date-time"},"usdcAtomic":{"type":"string"},"blockNumber":{"type":"integer"},"recommendedNext":{"type":"object"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NwtASbPjakLS562udJ6jJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns live ETH and USDC wallet balances on the Base blockchain for any EVM address, including atomic values, block height, contract address, and observation timestamp.","exampleAgentPrompt":"Before you send that USDC payment, can you check the current ETH and USDC balance on Base for wallet address 0x1234abcd...5678 and confirm there are enough funds?","exampleUseCases":[{"title":"Pre-payment balance verification","prompt":"Before you execute that 50 USDC transfer on Base, check the live ETH and USDC balance for wallet 0xAbCd...1234 so we know there's enough to cover it."},{"title":"Autonomous agent treasury check","prompt":"My agent needs to top up a contract — first check the current ETH and USDC balances on Base for address 0xDeF0...9876 and tell me the block height and observation time you see."},{"title":"DeFi position pre-flight check","prompt":"Before the bot tries to execute the swap, look up the live Base balance for 0x9999...aaaa — I need the native ETH amount, the Circle USDC amount in atomic units, and what block it was observed at."}],"resultDescription":"A JSON response containing the native ETH balance, Circle USDC balance (both in atomic/wei units and human-readable form), current block height on Base, the USDC contract address used, and the UTC timestamp of the observation.","failureModes":["Invalid or malformed EVM address returns an error response","Network or RPC node unavailability may cause timeouts or stale data","Non-Base EVM addresses may return zero balances if queried against the wrong chain","Payment failure (x402) if the 0.001 USDC fee is not included in the request"],"whenToPreferThis":"Use this endpoint when an AI agent needs a real-time, pre-transaction balance check on the Base blockchain specifically — especially before autonomous payments or DeFi actions. Prefer this over generic blockchain explorers when you need atomic-unit values, block height context, and observation timestamps in a single structured API response with no API key required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:33:00.948Z","isFirstParty":false}