{"uid":"cap_huOLbj-SqhyGiC3DcM-FY","slug":"bulk-evm-wallet-balances-via-multicall3-4ef9c2eb","name":"Bulk EVM Wallet Balances via Multicall3","description":"Free APEX on X1, and free USDC plus APEX on Arc, three times a day. No gas, no sign-up. Plus a swap, a screener, APEX City and token checks.","url":"https://apexfaucet.xyz/api/x402/evm-balances-bulk?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["addresses"],"properties":{"chain":{"enum":["ethereum","base","arc","bnb"],"type":"string","description":"Chain: ethereum, base, arc or bnb. Default ethereum."},"token":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Optional ERC20; without it, the native coin."},"addresses":{"type":"string","maxList":50,"pattern":"^0x[0-9a-fA-F]{40}(,0x[0-9a-fA-F]{40})*$","description":"Up to 50 wallet addresses, comma separated."}}}}},"output":{"type":"object"}}},"responseSchema":{"type":"json","schema":{"type":"object","properties":{"ok":{"type":"boolean"},"data":{"type":"object"},"paid":{"type":"number"}}},"example":{"ok":true,"data":{"ok":true,"asset":{"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","symbol":"USDC","decimals":6},"block":52561137,"chain":"base","count":2,"balances":[{"raw":"44783666","address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","balance":"44.783666"},{"raw":"17147","address":"0x024b82335C29Fa5606a8ea5c1D24FC9eAD50700C","balance":"0.017147"}],"blockTime":"2026-10-13T17:13:41.000Z"},"paid":0.005}},"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_ZmrXz3g55nIB73MAuhA3l","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":"Fetches native coin or ERC20 token balances for up to 50 wallet addresses in a single Multicall3 call across Ethereum, Base, Arc, or BNB Chain, all read at the same block.","exampleAgentPrompt":"Can you get me the USDC balances (contract 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48) for these 10 wallet addresses on Ethereum, all read at the same block: 0x1234..., 0x5678..., 0xabcd...?","exampleUseCases":[{"title":"Portfolio snapshot across many wallets","prompt":"I have a list of 30 wallet addresses and I want to see everyone's ETH balance on Base all at the same block — can you pull that in one go?"},{"title":"DAO treasury multi-wallet audit","prompt":"Can you check the USDC token balance (0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48) across these 45 DAO-controlled addresses on Ethereum so I can see who's holding what?"},{"title":"Airdrop eligibility balance check","prompt":"Before we do the airdrop, can you verify the native BNB balances for all 50 recipient wallets on BNB Chain so we know none of them are empty?"}],"resultDescription":"Returns a list of wallet addresses each paired with their balance (native coin or specified ERC20), all sourced from the same block via Multicall3, ensuring consistency across the entire result set.","failureModes":["More than 50 addresses supplied — request will be rejected or truncated","Invalid address format (non-0x hex) causes validation failure","Unsupported chain name returns an error","Invalid ERC20 token contract address (non-existent or wrong chain) may return zero balances or error","Network congestion on the target chain may cause timeouts"],"whenToPreferThis":"Choose this endpoint when you need to read balances for multiple wallets (2–50) in a single consistent call. It is far more efficient and cheaper than issuing individual balance queries per address, and the Multicall3 guarantee means all balances are from the same block — essential for snapshot accuracy, airdrop checks, or portfolio reporting.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T06:38:38.205Z","isFirstParty":false,"canonicalSlug":"bulk-evm-wallet-balances-via-multicall3-4ef9c2eb"}