{"slug":"api-x-402-online-v1-chain-allowance-c454d48f","name":"api.x-402.online/v1/chain/allowance","summary":"Get an ERC-20 allowance with the owner's balance and a sufficiency verdict for the amount you plan to pull. ERC-20 allowance of a spender on an owner (USDC by default), with the owner's balance and, if you pass ?amount=, a verdict: i…","status":"live","indexable":true,"listed_since":"2026-10-25T17:53:02.597542Z","sources":[{"source":"x402_bazaar","external_id":"https://api.x-402.online/v1/chain/allowance","owner_address":"0x2c871c2b8876dc35e9e19646fda5abf1cd27735f","seen_at":"2026-10-26T06:01:15.210483Z","removed_at":null}],"endpoints":[{"url":"https://api.x-402.online/v1/chain/allowance","host":"api.x-402.online","protocol":"x402","state":"live","last_probe_at":"2026-10-26T08:04:47.085143Z","last_ok_at":"2026-10-26T08:04:47.085143Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"api-x-402-online-afba482e","name":"api.x-402.online"}],"payment_options":[{"endpoint_url":"https://api.x-402.online/v1/chain/allowance","network":"eip155:8453","scheme":"exact","rail":"exact","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","coin":"USDC","asset_label":"USD Coin","amount":"5000","pay_to":"0x2c871c2b8876dc35e9e19646fda5abf1cd27735f","observed_at":"2026-10-26T08:04:47.085143Z"},{"endpoint_url":"https://api.x-402.online/v1/chain/allowance","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","scheme":"exact","rail":"exact","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","coin":"USDC","asset_label":null,"amount":"5000","pay_to":"3tvSUk2R16rrL4eo2diYpMUsBH1wa3tafqJE44x3bVgs","observed_at":"2026-10-26T08:04:47.085143Z"}],"usage":{"source":"x402_bazaar","unique_payers_30d":3,"paid_calls_30d":5,"last_paid_at":"2026-10-19T13:32:57.503Z","reported_at":"2026-10-26T06:01:15.210483Z"},"notice":"Not affiliated with addrbook — claim or request removal."}