ClefMCP

by HighlyLoadedEgo · Cloud & Infra · ★ 7

ClefMCP is an MCP server by HighlyLoadedEgo. Local MCP server exposing the Cloudflare Clef-Flash decision model to AI agents — structured decisions with probability outputs, fully offline via llama.cpp. It has 7 GitHub stars and ranks #658 of 1058 in Cloud & Infra by stars.

Category: Cloud & Infra
Author: HighlyLoadedEgo
GitHub stars: 7
This week: Tracking since 18 Oct 2026
Weekly downloads: 56
Language: TypeScript
License: Apache-2.0 (open source)
Last update: 2026-10-04 (20 days ago)
Links: Source Website npm

ai-agents
clef
decision-model
llama-cpp
local-llm
mcp
model-context-protocol
offline-inference
structured-output

How to install ClefMCP

ClefMCP is published on npm as clef-mcp, and it is listed in the official MCP Registry. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need Node.js for npx.

Add it to Claude Code from a terminal:

claude mcp add ClefMCP -- npx -y clef-mcp

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "ClefMCP": {
      "command": "npx",
      "args": [
        "-y",
        "clef-mcp"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm ClefMCP and its tools are listed. The install guide covers VS Code and Codex.

Also listed in

MCP servers for Cloudflare131

Maintain this project? Get it featured ($99/mo, pinned at the top of Cloud & Infra) or see what featuring includes.

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Frequently asked questions

What is ClefMCP?

ClefMCP is an MCP server by HighlyLoadedEgo in the Cloud & Infra category. Local MCP server exposing the Cloudflare Clef-Flash decision model to AI agents — structured decisions with probability outputs, fully offline via llama.cpp. It has 7 GitHub stars and ranks #658 of 1058 in Cloud & Infra by stars.

Is ClefMCP free and open source?

Yes. ClefMCP is published under the Apache-2.0 license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.