This API is in private preview. Endpoint availability and response schemas may change before general availability.
Review the WebSocket streaming documentation for the intended subscription envelope.
For REST reads, see the REST API overview. Each REST
operation includes its API key in the {apiKey} path segment.
Review the WebSocket lifecycle, replay, and wallet-fill guide before integrating.
For block cursors and protocol-level backfill, see the HyperCore Chain API getting started guide.