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updatedAt: 2026-07-15T02:06:09.000Z
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Fetch the complete documentation index at: https://docs.blockdaemon.com/llms.txt. Use this file to discover all available pages before exploring further. Append .md to any documentation page URL to get its markdown version.

# Kusama

Access Kusama with Blockdaemon RPC API

> 🚧 Substrate API Sidecar is going to be deprecated
>
> Sidecar is being replaced by the [Polkadot REST API](https://paritytech.github.io/polkadot-rest-api/). The new API is not a drop-in replacement, endpoints now include a `/v1/` prefix and some argument names have changed. See the [migration guide](https://paritytech.github.io/polkadot-rest-api/#guide-migration) to update your integration.

You can access Blockdaemon Kusama infrastructure via:

* [Substrate RPC API](https://docs.blockdaemon.com/docs/access-kusama-rpc-via-substrate-rpc-api)
* [Substrate Sidecar API](https://docs.blockdaemon.com/docs/access-kusama-rpc-via-substrate-sidecar-api)
* [Polkadot REST API](https://docs.blockdaemon.com/docs/kusama-via-polkadot-rest-api)