litellm-mirror/docs/my-website/docs/pass_through/intro.md
2025-01-23 16:59:17 -08:00

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# Why Pass-Through Endpoints?
These endpoints are useful for 2 scenarios:
1. **Migrate existing projects** to litellm proxy. E.g: If you have users already in production with Anthropic's SDK, you just need to change the base url to get cost tracking/logging/budgets/etc.
2. **Use provider-specific endpoints** E.g: If you want to use [Vertex AI's token counting endpoint](https://docs.litellm.ai/docs/pass_through/vertex_ai#count-tokens-api)
## How is your request handled?
The request is passed through to the provider's endpoint. The response is then passed back to the client. **No translation is done.**