{"uid":"cap_Dxr9vM_SD96IaslA07120","slug":"multichain-rpc-balance-29b4b98f","name":"Multichain RPC Balance","description":"Cheap, factual EVM chain lookups priced per call in USDC. Base, Polygon, Arbitrum, Optimism and Ethereum.","url":"https://multichain-rpc.clankerceo.workers.dev/balance","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":{"enum":["http"],"type":"string"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"chain":{"type":"string"},"address":{"type":"string"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"enum":["json"],"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"chain":"base","native":{"wei":"1000000","amount":"0.000001","symbol":"ETH"},"address":"0x…"}},"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_-KW5VDZyOW0Ci8gmHE-nH","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 coin and ERC-20 token balances for a wallet address on Base, Polygon, Arbitrum, Optimism, or Ethereum, with both raw (wei) and human-readable decimal amounts.","exampleAgentPrompt":"What's the ETH balance of wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base — give me both the raw wei amount and the human-readable decimal?","exampleUseCases":[{"title":"DeFi portfolio balance checker","prompt":"Check the ETH balance on Arbitrum for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — I need both the wei amount and the readable decimal so I can see if there's enough to cover a transaction."},{"title":"Cross-chain fund verification","prompt":"I need to verify how much USDC the address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B holds on Polygon — can you pull the balance with the human-readable amount?"},{"title":"Automated wallet monitoring alert","prompt":"Check the native coin balance for 0x742d35Cc6634C0532925a3b844Bc454e4438f44e on Optimism and tell me the decimal amount so I can see if it's dropped below my threshold."}],"resultDescription":"A JSON object containing the chain name, the wallet address, and a native balance object with the raw wei amount, the human-readable decimal amount, and the native token symbol (e.g. ETH, MATIC, ARB). For ERC-20 queries, token balance details are also included.","failureModes":["Invalid or malformed wallet address returns an error response","Unsupported chain name returns an error or empty result","Network timeout on the underlying RPC node","Payment not fulfilled triggers a 402 Payment Required response","Missing required query parameters (address or chain) results in a 400-level error"],"whenToPreferThis":"Choose this endpoint when you need fast, per-call wallet balance lookups across Base, Polygon, Arbitrum, Optimism, or Ethereum without maintaining your own RPC infrastructure. It is ideal for AI agents that need on-demand balance checks priced at a low per-call USDC rate via x402, especially when both raw wei and human-readable decimals are required in a single call. Prefer it over general-purpose RPC providers when you want a simple GET interface with no auth setup beyond x402 micropayments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:45:01.304Z","isFirstParty":false}