{"slug":"onchain-query-api-d4efa276","name":"Onchain Query API","summary":"ERC-20 token balance of any wallet on Base, Ethereum, Arbitrum, Optimism or Polygon: USDC, USDT, DAI, WETH or any token contract. Returns the human balance, the raw integer amount, and the token's symbol and decimals read from the contract. Omit `token` to get the chain's native USDC. Use it to confirm a payment landed or to check a stablecoin float.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:33.241976Z","sources":[{"source":"x402_bazaar","external_id":"https://chain.cyberwarex.com/erc20-balance","owner_address":"0x058d0cc5cc97e61e8a9f38d6d6365bce525921b2","seen_at":"2026-10-25T19:51:12.668322Z","removed_at":null}],"endpoints":[{"url":"https://chain.cyberwarex.com/erc20-balance","host":"chain.cyberwarex.com","protocol":"x402","state":"live","last_probe_at":"2026-10-25T20:31:08.748807Z","last_ok_at":"2026-10-25T20:31:08.748807Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"chain-cyberwarex-com-e9e6aa37","name":"chain.cyberwarex.com"}],"notice":"Not affiliated with addrbook — claim or request removal."}