# Quickstart

> HyperCore private-preview documentation.

> For the complete documentation index, see [llms.txt](/docs/llms.txt).

<Callout intent="info">
  This API is in private preview. Endpoint availability and response schemas may change before general availability.
</Callout>


# Quickstart

## Connect

Review the [WebSocket streaming documentation](/docs/chains/websockets/hypercore) for the intended subscription envelope.

For REST reads, see the [REST API overview](/docs/data/hypercore/rest-api). Each REST
operation includes its API key in the `{apiKey}` path segment.

## Next steps
Review the WebSocket lifecycle, replay, and wallet-fill guide before integrating.

## Chain API cross-link

For block cursors and protocol-level backfill, see [the HyperCore Chain API getting started guide](/docs/chains/hyperliquid/hypercore/getting-started).