BlockBook

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{"openapi":"3.0.0","info":{"title":"Blockbook API","version":"2.0.0-draft"},"servers":[{"url":"https://arb-blockbook.nownodes.io"}],"security":[{"api-keyAuth":[]}],"components":{"securitySchemes":{"api-keyAuth":{"type":"apiKey","in":"header","name":"api-key"}}},"paths":{"/api/v2/block/{blockId}":{"get":{"tags":["BlockBook"],"operationId":"getBlock","summary":"Get a block by height or hash.","description":"Returns block information with paged transactions. When full\ntransaction details are unavailable, the response can contain only\ntransaction ids.\n\nBlockbook follows the backend main chain. Height lookups always return\nthe current main-chain block. 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{"openapi":"3.0.0","info":{"title":"Blockbook API","version":"2.0.0-draft"},"servers":[{"url":"https://arb-blockbook.nownodes.io"}],"security":[{"api-keyAuth":[]}],"components":{"securitySchemes":{"api-keyAuth":{"type":"apiKey","in":"header","name":"api-key"}}},"paths":{"/api/v2/block-filters/":{"get":{"tags":["BlockBook"],"operationId":"getBlockFilters","summary":"Get compact block filters.","description":"Returns compact block filters for the script type configured on this\nBlockbook instance. Provide either lastN or a from/to range. When to is\nomitted for a range, the current best height is used.\n\nLoad estimate: High for wide ranges; work and payload grow linearly\nwith the number of requested filters.","parameters":[{"name":"scriptType","in":"query","required":true,"description":"Script type configured for block filters on this instance, for example taproot.","schema":{"type":"string"}},{"name":"lastN","in":"query","description":"Return filters for the last N blocks.","schema":{"type":"integer","minimum":1}},{"name":"from","in":"query","description":"First block height in the requested range.","schema":{"type":"integer","minimum":0}},{"name":"to","in":"query","description":"Last block height in the requested range. Defaults to the current best height when omitted.","schema":{"type":"integer","minimum":0}}],"responses":{"200":{"description":"Block filters keyed by block height.","content":{"application/json":{"schema":{"type":"object","required":["P","M","zeroedKey","blockFilters"],"properties":{"P":{"type":"integer","description":"Parameter P."},"M":{"type":"integer","format":"int64","description":"Parameter M."},"zeroedKey":{"type":"boolean","description":"Whether zeroed key was used."},"blockFilters":{"type":"object","additionalProperties":{"type":"object","required":["blockHash","filter"],"properties":{"blockHash":{"type":"string","description":"Block hash."},"filter":{"type":"string","description":"Compact filter hex."}}},"description":"Map of block heights to filter objects."}}}}}},"default":{"description":"Public API error.","content":{"application/json":{"schema":{"type":"object","required":["error"],"properties":{"error":{"type":"string","description":"Human-readable error message."}}}}}}}}}}}

{"openapi":"3.0.0","info":{"title":"Blockbook API","version":"2.0.0-draft"},"servers":[{"url":"https://arb-blockbook.nownodes.io"}],"security":[{"api-keyAuth":[]}],"components":{"securitySchemes":{"api-keyAuth":{"type":"apiKey","in":"header","name":"api-key"}}},"paths":{"/api/v2/tx/{txid}":{"get":{"tags":["BlockBook"],"operationId":"getTransaction","summary":"Get a normalized transaction.","description":"Returns normalized transaction data with the same general structure for\nall supported coins. Coin-specific fields that do not fit the common\nshape are omitted here; use getTransactionSpecific for backend-native\nJSON.\n\nBitcoin-like confirmed transactions include blockHash, confirmations,\nblockTime, size/vsize, value/valueIn, fees, and hex. Unconfirmed\ntransactions can include confirmationETABlocks and\nconfirmationETASeconds.\n\nEthereum-like transactions have one vin and one vout, tokenTransfers,\nethereumSpecific execution data, and optional addressAliases. Parsed\ninput data is included when the 4byte signature can be resolved.\n\nFor mined transactions, blockTime is the block timestamp. 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