{"uid":"cap_7GcnbN4f6bKNYYtpspRjm","slug":"eth-balance-multi-55694bc1","name":"ETH Balance Multi","description":"Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.","url":"https://stablecrypto.dev/api/etherscan/account/balance-multi","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"tag":{"type":"string"},"address":{"type":"string","description":"Comma-separated addresses (max 20)"},"chainid":{"type":"number","description":"EVM chain ID (1=Ethereum, 137=Polygon, 8453=Base, etc.)"}}},"responseSchema":null,"example":{"request":{"address":"0x1234567890123456789012345678901234567890,0x0987654321098765432109876543210987654321,0xabcdefabcdefabcdefabcdefabcdefabcdefabcd","chainid":1},"response":[{"account":"0x1234567890123456789012345678901234567890","balance":"17373247080759505555"},{"account":"0x0987654321098765432109876543210987654321","balance":"0"},{"account":"0xabcdefabcdefabcdefabcdefabcdefabcdefabcd","balance":"100000000000000"}]},"exampleRequest":{"address":"0x1234567890123456789012345678901234567890,0x0987654321098765432109876543210987654321,0xabcdefabcdefabcdefabcdefabcdefabcdefabcd","chainid":1},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dSSh29nQkZQImsbmi1MCe","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieve native ETH (or EVM-chain) balances for up to 20 wallet addresses in a single call","exampleAgentPrompt":"Can you look up the ETH balances on Ethereum mainnet (chain ID 1) for these three wallet addresses: 0xAbc...1, 0xDef...2, and 0x123...3?","exampleUseCases":null,"resultDescription":"Returns the native token balance (in wei or ETH) for each of the queried addresses on the specified EVM chain, keyed by address.","failureModes":["More than 20 addresses provided — API rejects the request","Invalid or malformed address in the comma-separated list","Unsupported chain ID — chain not indexed by the provider","Network timeout or upstream Etherscan API unavailability","Missing required fields (chainid or address) return validation error"],"whenToPreferThis":"Use this endpoint when you need to check native ETH (or EVM-compatible chain native token) balances for multiple addresses (up to 20) in a single request, rather than making individual balance calls. Ideal for portfolio aggregation, wallet monitoring dashboards, or any workflow that needs to batch balance lookups efficiently across Ethereum, Polygon, Base, or other EVM chains.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:47:00.048Z","isFirstParty":false}