{"slug":"saylorinnovations-com-api-chain-pending-block-3c8f1b","title":"Pending block on 16 EVM chains","host":"saylorinnovations.com","method":"GET","resource":"https://saylorinnovations.com/api/chain/pending-block","category":"other","description":"Pending block on 16 EVM chains: transactions not yet mined, pending gas used and base fee, compared with the latest block and flagged when stale.","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":518,"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":{"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":{"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":{"chain":{"description":"the chain name that was queried","type":"string"},"chain_id":{"description":"EIP-155 chain id of that network","type":"number"},"latest_block":{"description":"height of the latest sealed block","type":"number"},"latest_block_tx_count":{"description":"transactions in the latest sealed block","type":["number","null"]},"note":{"description":"plain-language reading of the result","type":"string"},"pending_available":{"description":"true when the node serves a pending block","type":"boolean"},"pending_base_fee_gwei":{"description":"base fee of the pending block in gwei","type":["number","null"]},"pending_block_number":{"description":"height of the pending block","type":["number","null"]},"pending_gas_used":{"description":"gas used so far in the pending block","type":["number","null"]},"pending_is_next_block":{"description":"true when pending is exactly latest plus one","type":["boolean","null"]},"pending_transactions":{"description":"first 50 pending transaction hashes","type":["array","null"]},"pending_tx_count":{"description":"transactions in the pending block","type":["number","null"]},"source":{"description":"where the data was read from","type":"string"},"transactions_truncated":{"description":"true when more than 50 are pending","type":"boolean"}},"required":["chain","chain_id","latest_block","pending_available","note","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":518,"error":null}],"description_full":"Pending block on 16 EVM chains: transactions not yet mined, pending gas used and base fee, compared with the latest block and flagged when stale.","last_updated":"2026-10-21T04:11:23.941Z","schemes":["exact"]}