Legacy get block by height or hash.
Authorizations
ApiKeyAuthApiKeyAuthapi-key string
NOWNodes API key passed in the api-key header.
Bitcore Insight-compatible V1 block shape for Bitcoin-type coins.
Load estimate: Medium to high; grows with block transaction count and legacy payload size.
Parameters
blockIdinteger | stringrequiredpathBlock identifier. Pass either a block height or a block hash.
Response
HTTP 200 Verge Blockbook response for getLegacyBlock.
Domain or validation error. live-verified: JSON body {"error": "..."} (unknown block/transaction, invalid address, malformed broadcast hex, missing filter parameters).
Unauthorized: missing or invalid api-key header. The NOWNodes gateway returns the plain-text body "Unknown API_key".
Method Not Allowed: gateway-level response for unknown routes (and for the v1 GET broadcast route on this instance).
Internal Server Error. live-verified on the deployed instance: JSON body {"error":"Internal server error"} (observed on /api/rawtx and invalid XPUB lookups).