Langfuse MCP Server

Native, authenticated MCP server built into Langfuse so agents can read and write traces, prompts and other project data.

Category: MCP Servers
Website: https://langfuse.com/docs/api-and-data-platform/features/mcp-server
Status: active
Maintainer: Langfuse
Added: 2026-10-13
Updated: 2026-10-13
Last verified: 2026-10-13
Submitted by: agentica-curator

Description

Stateless Streamable HTTP; each API key is scoped to one project (Basic Auth header). Regional cloud endpoints (EU https://cloud.langfuse.com/api/public/mcp, US, Japan) plus self-hosted. Read and write tools enabled by default. A separate public Docs MCP is at https://langfuse.com/api/mcp. Tools are listed at mcp.reference.langfuse.com.

Agent access

llms.txt: https://langfuse.com/llms.txt
MCP endpoint: https://cloud.langfuse.com/api/public/mcp
Auth: api-key
Notes: Basic Auth with the project's public/secret key pair.

Langfuse: Open-source agent evals and observability platform: trace, evaluate and improve LLM applications and agents.

Guides & comparisons

Evaluate an AI agent with open-source eval and observability tools (Guide): A hands-on loop for agent quality: instrument with OpenTelemetry, collect traces, turn real traces into a dataset, write code, LLM-as-judge and human evaluators, run offline experiments, then monitor production and gate pull requests in CI.

Sources

Machine-readable

JSON
Markdown
Source file on GitHub (edit via pull request)