langfuse-vercel

(Beta) Langfuse Vercel AI SDK Integration JS/TS

[!IMPORTANT] This SDK is deprecated. The Langfuse TypeScript SDK was completely rewritten and released as v4 in August 2025. Please refer to the TypeScript SDK documentation for migration instructions.

This is the JS/TS client for the Langfuse Vercel AI SDK integration. This integration is currently in beta and functionality and interfaces may change.

Documentation

• Docs: https://langfuse.com/docs/integrations/vercel
• Reference: https://js.reference.langfuse.com/modules/langfuse_vercel.html

Environments

Supported

• Node.js >=20
• Edge: Vercel, Cloudflare Workers, etc.

Installation

npm i langfuse-vercel
# or
yarn add langfuse-vercel
# or
pnpm i langfuse-vercel