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HackMD MCP Server

local only

HackMD runs on your own machine — the client starts it, so there is no endpoint to ping. 150 installs a week from npm. Last commit 13 Jul 2026.

A Model Context Protocol server for integrating HackMD's note-taking platform with AI assistants.

Installs per day peak 63 · avg 29 · +35% w/w
a month agotoday
150
Installs / week
npm · hackmd-mcp
67
Stars
0 open issues
13 Jul 2026
Last commit
0 releases in 90 days
MIT
License
TypeScript

What the code does

We read the source, 20 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Known vulnerability in the package hackmd-mcp · GHSA-g5cg-6c7v-mmpw

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add hackmd-mcp -- npx -y hackmd-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "hackmd-mcp": {
      "args": [
        "-y",
        "hackmd-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.hackmd-mcp]
command = "npx"
args = ["-y", "hackmd-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "hackmd-mcp": {
      "args": [
        "-y",
        "hackmd-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "hackmd-mcp": {
      "args": [
        "-y",
        "hackmd-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: HACKMD_API_TOKEN (Your HackMD API token for API authentication), HACKMD_API_URL (Optional HackMD API URL, defaults to https://api.hackmd.io/v1). The author declared them in the registry entry; get the values from the project itself.

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HackMD — questions

Answers built from our own checks of this server.

Why is there no uptime for HackMD?
HackMD runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package hackmd-mcp was installed 150 times last week.
How do I connect HackMD?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls hackmd-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use HackMD?
The npm package hackmd-mcp was installed 150 times in the last week. Week over week that is +35%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is HackMD open source?
Yes — it is published under the MIT licence, written in TypeScript and 67 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.