What is the key difference between Last9 MCP Server and Langfuse MCP?

Last9 MCP Server belongs to the Monitoring category with local stdio execution, while Langfuse MCP belongs to the Monitoring category with local stdio execution.

How do I install Last9 MCP Server or Langfuse MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Last9 MCP Server and Langfuse MCP free or paid?

Last9 MCP Server operates under a Freemium model (API Key required). Langfuse MCP operates under a Free / Open Source model (API Key required).

Which MCP server has more tools and community activity?

Last9 MCP Server lists 80 tools with 4 views and 62 GitHub stars. Langfuse MCP lists 6 tools with 3 views and 106 GitHub stars.

Can I use both Last9 MCP Server and Langfuse MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Last9 MCP Server vs Langfuse MCP

In-depth architectural comparison of the Last9 MCP Server and Langfuse MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Last9 MCP Server

Monitoring · Local stdio

Quality: 60/100 (Good) | Auth: API Key required

Langfuse MCP

Monitoring · Local stdio

Quality: 55/100 (Good) | Auth: API Key required

Verdict Summary: Choose Last9 MCP Server if you need specialized Monitoring tools running via a local process. Choose Langfuse MCP if your workspace requires Monitoring integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Last9 MCP Server when:

You need dedicated capabilities in the Monitoring domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Freemium).
You have access to required keys: LAST9_REFRESH_TOKEN.
Primary tools included: start_time_iso, end_time_iso, time_iso.

Explore Last9 MCP Server Details

Choose Langfuse MCP when:

You need dedicated capabilities in the Monitoring domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: LANGFUSE_PUBLIC_KEY, LANGFUSE_SECRET_KEY, LANGFUSE_HOST, LANGFUSE_MCP_READ_ONLY.
Primary tools included: Trace, observation, session, and exception inspection, Route-decision analysis tools, Prompt, dataset, and annotation queue operations.

Feature & Specification Comparison

Specification	Last9 MCP Server last9 Monitoring	Langfuse MCP avivsinai Monitoring
Summary	Seamlessly bring real-time production context—logs, metrics, and traces—into your local environment to auto-fix code faster	Query Langfuse traces, debug exceptions, analyze sessions, and manage prompts. Full observability toolkit for LLM applications.
Category & Scope	Monitoring

Tools & Capabilities Breakdown

Last9 MCP Server Tools (80)

start_time_iso

end_time_iso

time_iso

lookback_minutes

limit

service_name

span_name

env

sort_by

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Last9 MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "last9-last9-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@last9/mcp-server@latest"
      ],
      "env": {
        "LAST9_REFRESH_TOKEN": "YOUR_LAST9_REFRESH_TOKEN_HERE"
      }
    }
  }
}

Langfuse MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "avivsinai-langfuse-mcp": {
      "command": "uvx",
      "args": [
        "langfuse-mcp"
      ],
      "env": {
        "LANGFUSE_PUBLIC_KEY": "YOUR_LANGFUSE_PUBLIC_KEY_HERE",
        "LANGFUSE_SECRET_KEY": "YOUR_LANGFUSE_SECRET_KEY_HERE",
        "LANGFUSE_HOST": "YOUR_LANGFUSE_HOST_HERE",
        "LANGFUSE_MCP_READ_ONLY": "YOUR_LANGFUSE_MCP_READ_ONLY_HERE"
      }
    }
  }
}

Frequently Asked Questions

Last9 MCP Server is categorized under Monitoring and uses a local stdio subprocess. In contrast, Langfuse MCP belongs to Monitoring using local stdio subprocess. Select Last9 MCP Server when you need capabilities focused on monitoring and Langfuse MCP when you require tools for monitoring.

More alternatives to Last9 MCP Server More alternatives to Langfuse MCP Monitoring category hub Canonical compare URL