# SDKs and frameworks

> How mainstream SDKs and frameworks point at TokRouter — change a base_url or origin, no adapter package needed.

TokRouter ships no SDK of its own — it implements the vendors' **native protocols**, so any client that
supports a custom base URL works.

## Rules of thumb

| Client type | What to change |
| --- | --- |
| OpenAI SDK / OpenAI-compatible frameworks | `base_url` = `https://api.tokrouter.dev/v1` |
| Anthropic SDK | `base_url` = `https://api.tokrouter.dev` (the SDK appends `/v1/messages`) |
| google-genai | `base_url` = `https://api.tokrouter.dev` |
| Any HTTP client | Call the protocol endpoint directly |

Keys are always the `sk-` token; the header differs per protocol (see [Authentication](/en/authentication/)).

## Pages

- [OpenAI Python SDK](/en/sdks/openai-python/)
- [OpenAI Node SDK](/en/sdks/openai-node/)
- [Anthropic SDK](/en/sdks/anthropic/)
- [LangChain](/en/sdks/langchain/)
- [Vercel AI SDK](/en/sdks/vercel-ai-sdk/)

## Community clients

Configuration for Cline, Cherry Studio, LibreChat, Cursor and Claude Code lives in
[Tool integrations](/en/integrations/).

<Callout type="info" title="Runnable examples">
Every example on these pages uses a real model id and can be copied as-is. Model ids come from
[Models](/en/models/).
</Callout>