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

# Developer SDK

Use the Developer SDK section when your backend keeps the API key and prepares
wallet actions for the client to sign. The hosted server SDK is available for
TypeScript and Python.

Start there for:

* wallet creation
* transfers and swaps
* recovery setup and runtime flows
* sponsor and paymaster-backed submission

<Card title="Open Developer SDK Docs" icon="building" href="/developer-sdk">
  Go to the full Developer SDK documentation
</Card>

<Card title="Open Developer API Reference" icon="code" href="/developer-api">
  Use the REST reference when you need endpoint paths and payload shapes
</Card>