API Reference

Using the SDKs is the recommended way to integrate with Langfuse. However, the API can also be used directly.

There are two ways to access the API:

1. Server-side: Full access with secret key
2. Client-side: Restricted access with public key

Full access with secret key

The full API is available with a secret key. This key should not be exposed to users.

Authentication (Basic): pass the public key as username and the secret key as password

Restricted access with public key (client-side)

To allow for client-side usage of the API, a subset of the API routes are available with a public key. To integrate this API with your web application, you can also use the Typescript frontend SDK.

Authentication (Bearer): Bearer <public key> (authorization header)