{"slug":"base-onchain-data-da950332","name":"Base Onchain Data","summary":"ERC-20 allowance on Base: how much a spender may transfer from an owner, whether the approval is effectively unlimited, the owner's balance, and the amount the spender could move right now.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:26.528624Z","sources":[{"source":"x402_bazaar","external_id":"https://onchaincheck.dev/base/allowance","owner_address":"0x2ecb9e1fcca7a62758c679f11bc3241466d181d8","seen_at":"2026-10-26T05:59:55.831027Z","removed_at":null}],"endpoints":[{"url":"https://onchaincheck.dev/base/allowance","host":"onchaincheck.dev","protocol":"x402","state":"live","last_probe_at":"2026-10-26T05:17:41.380541Z","last_ok_at":"2026-10-26T05:17:41.380541Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"onchaincheck-dev-2f0cb39a","name":"onchaincheck.dev"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":2,"paid_calls_30d":2,"last_paid_at":"2026-10-24T07:54:45.428Z","reported_at":"2026-10-26T05:59:55.831027Z"},"notice":"Not affiliated with addrbook — claim or request removal."}