{"slug":"x402-echo-service-onrender-com-chain-erc20-balance-cb44a7","title":"Read an ERC-20 token balance on Base","host":"x402-echo-service.onrender.com","method":"POST","resource":"https://x402-echo-service.onrender.com/chain/erc20-balance","category":"market","description":"Read an ERC-20 token balance on Base. POST {\"address\":\"0x...\",\"token\":\"0x...\"} and receive the raw balance, the token decimals and the human-readable amount. Defaults to USDC when token is omitted. Live chain state, no indexer lag.","price_listed":0.001,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":231,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"address":"0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"body":{"additionalProperties":false,"properties":{"address":{"description":"Account to read.","type":"string"},"token":{"description":"ERC-20 contract. Defaults to USDC on Base.","type":"string"}},"required":["address"],"type":"object"},"bodyType":{"enum":["json"]},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http"}},"required":["type","bodyType","body","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"address":{"type":"string"},"amount":{"type":"string"},"decimals":{"type":"integer"},"raw":{"type":"string"},"token":{"type":"string"}},"required":["address","token","raw","decimals","amount"],"type":"object"},"type":{"const":"json"}},"required":["type","example"],"type":"object"}},"required":["input","output"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":true,"latency_ms":231,"error":null}],"description_full":"Read an ERC-20 token balance on Base. POST {\"address\":\"0x...\",\"token\":\"0x...\"} and receive the raw balance, the token decimals and the human-readable amount. Defaults to USDC when token is omitted. Live chain state, no indexer lag.","last_updated":"2026-08-30T15:19:20.453Z","schemes":["exact"]}