Get a block by height or hash.
Authorizations
ApiKeyAuthApiKeyAuthapi-key string
NOWNodes API key passed in the api-key header.
Modified between 0.5.0 and 0.6.0: page is now validated: values above 1,000,000 are capped and invalid values fall back to the first page. Documented as it exists in 0.6.0.
Returns block information with paged transactions. When full transaction details are unavailable, the response can contain only transaction ids.
Blockbook follows the backend main chain. Height lookups always return the current main-chain block. Hash lookups can return a block from another fork only if the backend still keeps it.
Load estimate: Medium; grows mainly with block transaction count and requested page.
Parameters
blockIdstringrequiredpathBlock height or block hash.
pageinteger>= 1query1-based page index. Values outside safe bounds are sanitized to the closest possible page.
Response
Block details.
Bad Request
Unauthorized. Returned when the api-key header is missing, empty, or not accepted by the NOWNodes gateway. The body is plain text.
Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.
Unprocessable Entity. Returned by the NOWNodes gateway for requests it accepts but cannot process. The body is plain text.
Internal Server Error
Service Unavailable
Public API error.