# SDKs

Use a thin typed client or call the HTTP API directly.

The Python SDK imports as `secnd`; the TypeScript package is `@secnd/sdk`. Both send the same request object to `/v1/decide`, expose typed errors, and retry `429` and server errors with bounded backoff.

These are local workspace packages. Registry publication is not assumed. The Python distribution is currently named `secnd-sdk`; its import name remains `secnd`.

Build the TypeScript workspace from the repository root before installing its local package:

```bash
npm run build --workspace @secnd/sdk
npm install ./packages/sdk-ts
```

Install Python from the repository root into your project's environment:

```bash
uv pip install ./packages/sdk-python
```

Use the language-specific pages for constructor options, asynchronous calls, and error handling. Model weights are not part of either package.

See [Python](/sdk/python) for sync and async clients, or [TypeScript](/sdk/typescript) for cancellation and typed requests.