{"slug":"saylorinnovations-com-api-chain-block-581bef","title":"EVM block lookup for 16 chains by number, hash or tag","host":"saylorinnovations.com","method":"GET","resource":"https://saylorinnovations.com/api/chain/block","category":"other","description":"EVM block lookup for 16 chains by number, hash or tag: header, gas used, base fee, miner, size, transaction count and the transaction hashes.","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":284,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:137","eip155:42161","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"block":"latest","chain":"ethereum"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"block":{"description":"optional block number (decimal or 0x hex), 0x block hash, or latest, safe, finalized (default latest)","type":"string"},"chain":{"description":"chain name (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, mantle, blast, sonic, celo, berachain, unichain) or chain id","type":"string"}},"required":["chain"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"age_seconds":{"description":"seconds since the block was produced","type":"number"},"base_fee_gwei":{"description":"base fee per gas in gwei","type":["number","null"]},"block_number":{"description":"block height","type":"number"},"chain":{"description":"the chain name that was queried","type":"string"},"chain_id":{"description":"EIP-155 chain id of that network","type":"number"},"fullness_pct":{"description":"share of the gas limit used","type":["number","null"]},"gas_limit":{"description":"block gas limit","type":"number"},"gas_used":{"description":"gas used by the block","type":"number"},"hash":{"description":"block hash","type":"string"},"miner":{"description":"fee recipient or validator address","type":["string","null"]},"note":{"description":"plain-language reading of the result"},"parent_hash":{"description":"hash of the previous block","type":"string"},"size_bytes":{"description":"block size in bytes","type":["number","null"]},"source":{"description":"where the data was read from","type":"string"},"timestamp":{"description":"block time in UTC","type":"string"},"transactions":{"description":"first 100 transaction hashes","type":["array","null"]},"transactions_truncated":{"description":"true when more than 100 transactions exist","type":"boolean"},"tx_count":{"description":"transactions in the block","type":"number"},"withdrawals_count":{"description":"validator withdrawals in the block","type":["number","null"]}},"required":["chain","chain_id","block_number","hash","timestamp","tx_count","source"],"type":"object"},"type":{"const":"json","type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-21","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.01,"price_match":true,"latency_ms":284,"error":null}],"description_full":"EVM block lookup for 16 chains by number, hash or tag: header, gas used, base fee, miner, size, transaction count and the transaction hashes.","last_updated":"2026-10-21T04:11:23.018Z","schemes":["exact"]}