Koskamo

Langfuse API MCP

A stateless MCP server providing AI agents with access to the full Langfuse public API, supporting both Langfuse Cloud and self-hosted instances. It enables agents to investigate traces, observations, sessions, errors, latency, and cost, as well as read prompts, datasets, experiments, scores, metrics, models, comments, and annotation queues. It also supports write operations like promoting prompt labels, creating scores, or editing datasets when explicitly enabled. The server is designed for corporate networks that re-sign TLS traffic with their own certificate authority.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Langfuse API MCP logo, by rodrigorjsfCommunity listingLocal stdioSource reviewed; not executedPublished by rodrigorjsf
Vendor documentation

What you can do with it

  • Investigate traces, observations, sessions, errors, latency, and cost
  • Read prompts, datasets, experiments, scores, metrics, models, comments and annotation queues
  • Promote a prompt label, create a score or edit a dataset

Source and maintenance

Community listingRegistry 0.2.0
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

ghcr.io/rodrigorjsf/langfuse-api-mcp:0.2.0

ocidocker
ghcr.io/rodrigorjsf/langfuse-api-mcp:0.2.0 package definition
{
  "transport": "stdio",
  "identifier": "ghcr.io/rodrigorjsf/langfuse-api-mcp:0.2.0",
  "runtimeHint": "docker",
  "registryType": "oci",
  "environmentVariables": [
    {
      "name": "LANGFUSE_PUBLIC_KEY",
      "isRequired": true,
      "description": "The project's public key (pk-lf-...)."
    },
    {
      "name": "LANGFUSE_SECRET_KEY",
      "isRequired": true,
      "description": "The project's secret key (sk-lf-...)."
    },
    {
      "name": "LANGFUSE_BASE_URL",
      "isRequired": true,
      "description": "Your Langfuse host, e.g. https://cloud.langfuse.com; https only, http only for localhost."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "langfuse-api-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "LANGFUSE_PUBLIC_KEY=<YOUR_LANGFUSE_PUBLIC_KEY>",
        "-e",
        "LANGFUSE_SECRET_KEY=<YOUR_LANGFUSE_SECRET_KEY>",
        "-e",
        "LANGFUSE_BASE_URL=<YOUR_LANGFUSE_BASE_URL>",
        "ghcr.io/rodrigorjsf/langfuse-api-mcp:0.2.0"
      ],
      "env": {
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "langfuse-api-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "LANGFUSE_PUBLIC_KEY=<YOUR_LANGFUSE_PUBLIC_KEY>",
        "-e",
        "LANGFUSE_SECRET_KEY=<YOUR_LANGFUSE_SECRET_KEY>",
        "-e",
        "LANGFUSE_BASE_URL=<YOUR_LANGFUSE_BASE_URL>",
        "ghcr.io/rodrigorjsf/langfuse-api-mcp:0.2.0"
      ],
      "env": {
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "langfuse-api-mcp": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "LANGFUSE_PUBLIC_KEY=<YOUR_LANGFUSE_PUBLIC_KEY>",
        "-e",
        "LANGFUSE_SECRET_KEY=<YOUR_LANGFUSE_SECRET_KEY>",
        "-e",
        "LANGFUSE_BASE_URL=<YOUR_LANGFUSE_BASE_URL>",
        "ghcr.io/rodrigorjsf/langfuse-api-mcp:0.2.0"
      ],
      "env": {
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "langfuse-api-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "LANGFUSE_PUBLIC_KEY=<YOUR_LANGFUSE_PUBLIC_KEY>",
        "-e",
        "LANGFUSE_SECRET_KEY=<YOUR_LANGFUSE_SECRET_KEY>",
        "-e",
        "LANGFUSE_BASE_URL=<YOUR_LANGFUSE_BASE_URL>",
        "ghcr.io/rodrigorjsf/langfuse-api-mcp:0.2.0"
      ],
      "env": {
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>"
      }
    }
  }
}

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