{"slug":"x402-agentindex-world-wallet-balance-84ff2e","title":"Read native coin and USDC balances for any EVM wallet on Base, Ethereum, Polygon","host":"x402.agentindex.world","method":"GET","resource":"https://x402.agentindex.world/wallet-balance","category":"market","description":"Read native coin and USDC balances for any EVM wallet on Base, Ethereum, Polygon, Arbitrum or Optimism, with atomic amounts and current block. No RPC key or account. Try GET /wallet-balance/sample.","price_listed":0.001,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":966,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"address":"0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d","network":"base"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{"address":{"description":"EVM wallet address (0x followed by 40 hexadecimal characters).","type":"string"},"network":{"description":"EVM network to read; aliases and CAIP-2 identifiers are also accepted.","enum":["base","ethereum","polygon","arbitrum","optimism"],"type":"string"}},"required":["address"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"address":{"type":"string"},"block_number":{"type":"integer"},"native":{"type":"object"},"network":{"type":"object"},"usdc":{"type":"object"},"x402_receipt":{"type":"object"}},"required":["address","network","block_number","native","usdc"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-25","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":true,"latency_ms":966,"error":null}],"description_full":"Read native coin and USDC balances for any EVM wallet on Base, Ethereum, Polygon, Arbitrum or Optimism, with atomic amounts and current block. No RPC key or account. Try GET /wallet-balance/sample.","last_updated":"2026-09-25T15:24:38.055Z","schemes":["exact"]}