{"slug":"arbitrum-one-onchain-data-90bac0d8","name":"Arbitrum One Onchain Data","summary":"Identify what lives at a Arbitrum One address: wallet (EOA, including EIP-7702 delegation) or contract, which token standard it implements (ERC-20, ERC-721, ERC-1155), name and symbol, upgradeable-proxy implementation and admin, smart-wallet proxies, bytecode size, nonce and ETH balance.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:26.528624Z","sources":[{"source":"x402_bazaar","external_id":"https://onchaincheck.dev/arbitrum/contract","owner_address":"0x2ecb9e1fcca7a62758c679f11bc3241466d181d8","seen_at":"2026-10-26T05:59:56.316255Z","removed_at":null}],"endpoints":[{"url":"https://onchaincheck.dev/arbitrum/contract","host":"onchaincheck.dev","protocol":"x402","state":"live","last_probe_at":"2026-10-26T05:29:33.667195Z","last_ok_at":"2026-10-26T05:29:33.667195Z","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":"2026-10-24T07:49:47.469Z","reported_at":"2026-10-26T05:59:56.316255Z"},"notice":"Not affiliated with addrbook — claim or request removal."}