{"slug":"contract-bytecode-and-code-hash-63e9ea79","name":"Contract bytecode and code hash","summary":"Fetch deployed EVM contract runtime bytecode and its Keccak-256 code hash to fingerprint or compare contracts, or feed a disassembler. Supports Ethereum, Base, Arbitrum, Optimism and Polygon, with optional historical block reads. Returns full hex code, byte size and isContract; an empty-code address returns 0x and a null hash. Key-free RPC with endpoint fallback; code capped at 256 KiB.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:32.534129Z","sources":[{"source":"x402_bazaar","external_id":"https://chain.openverbs.com/v1/bytecode","owner_address":"0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a","seen_at":"2026-10-26T06:00:00.311689Z","removed_at":null}],"endpoints":[{"url":"https://chain.openverbs.com/v1/bytecode","host":"chain.openverbs.com","protocol":"x402","state":"live","last_probe_at":"2026-10-26T07:35:17.169025Z","last_ok_at":"2026-10-26T07:35:17.169025Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"chain-openverbs-com-7028584c","name":"chain.openverbs.com"}],"payment_options":[{"endpoint_url":"https://chain.openverbs.com/v1/bytecode","network":"eip155:8453","scheme":"exact","rail":"exact","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","coin":"USDC","asset_label":"USD Coin","amount":"6000","pay_to":"0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a","observed_at":"2026-10-26T07:35:17.169025Z"}],"usage":{"source":"x402_bazaar","unique_payers_30d":2,"paid_calls_30d":3,"last_paid_at":"2026-10-21T21:23:30.096Z","reported_at":"2026-10-26T06:00:00.311689Z"},"notice":"Not affiliated with addrbook — claim or request removal."}