> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sumvin.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Install the SDK

> Add @sumvin/sdk to a project, check your runtime, and pick the entry point you need.

export const waitlists = {
  earlyAccess: "",
  payments: "",
  openBanking: "",
  developers: "",
  verifiers: ""
};

<Note>
  **Private preview:** this is rolling out and may not be available on your account yet.{waitlists.earlyAccess ? <> <a href={waitlists.earlyAccess}>Request early access →</a></> : null}
</Note>

<CodeGroup>
  ```bash bun theme={null}
  bun add @sumvin/sdk
  ```

  ```bash npm theme={null}
  npm install @sumvin/sdk
  ```

  ```bash pnpm theme={null}
  pnpm add @sumvin/sdk
  ```
</CodeGroup>

The package ships ESM and CommonJS builds with type definitions. Its only runtime dependency is `zod`.

## Runtimes

| Runtime             | Supported                                                            |
| ------------------- | -------------------------------------------------------------------- |
| Node.js 20 or later | Yes                                                                  |
| Evergreen browsers  | Yes                                                                  |
| Cloudflare Workers  | Yes                                                                  |
| Bun                 | Works, but the SDK's own test suite does not yet run under Bun in CI |

## Entry points

| Import                | What's in it                                                                                    | Extra packages                   |
| --------------------- | ----------------------------------------------------------------------------------------------- | -------------------------------- |
| `@sumvin/sdk`         | Every API operation, its types and schemas, plus authentication, errors and the ceiling reader. | None                             |
| `@sumvin/sdk/react`   | Query options for TanStack Query.                                                               | `react`, `@tanstack/react-query` |
| `@sumvin/sdk/testing` | `fakeFetch`, for tests only. See [Testing](/sdk/testing).                                       | None                             |

## Next

<Card title="Make a client" icon="plug" href="/sdk/client">
  Point the SDK at the API and choose how it authenticates.
</Card>