{"slug":"api-onesource-io-api-chain-allowance-0f8222c9","name":"api.onesource.io/api/chain/allowance","summary":"ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet","status":"live","indexable":true,"listed_since":"2026-10-25T17:50:12.247212Z","sources":[{"source":"x402_bazaar","external_id":"https://api.onesource.io/api/chain/allowance","owner_address":"0x52e29e0d2aa49bfbfc548c0a9f2196f4aa51f3ea","seen_at":"2026-10-25T19:50:25.911305Z","removed_at":null}],"endpoints":[{"url":"https://api.onesource.io/api/chain/allowance","host":"api.onesource.io","protocol":"x402","state":"live","last_probe_at":"2026-10-25T17:57:15.200117Z","last_ok_at":"2026-10-25T17:57:15.200117Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"api-onesource-io-2ea28668","name":"api.onesource.io"}],"notice":"Not affiliated with addrbook — claim or request removal."}