HackMD: MCP server, setup and security

What HackMD does

According to its repository: “Interact with HackMD.”

An MCP server gives an AI agent extra tools it calls during the conversation: the agent reads their description, decides to use them and gets the result back. HackMD is listed under Other integrations, a category of 194 servers in the directory, where it ranks #103 by stars.

Topics declared by the repository: hackmd, api.

Installing and connecting HackMD

Distribution modes declared in the official MCP registry:

• npm package (Node.js, usually started with npx)
• Docker (OCI) image
• MCPB bundle (one-click install in Claude Desktop)
• remote server (streamable-http): you connect to it by URL, with nothing to install locally

Like any MCP server, you declare it in your client's configuration (Claude Desktop, Claude Code, Cursor, VS Code, Codex…): a name, the command that starts it or its URL, and any environment variables. The client then starts it and lists its tools. Project language: TypeScript.

The registry lists 3 secret variables to provide (API key, access token). Keep them in the client's environment variables, never in a shared file or a repository.

Security: what to check

An MCP server runs code with the rights you give it, and the model reads its tool descriptions: a malicious or compromised server can hijack the agent. Read the code, or pick a maintained and widely used server, before connecting it.

Points found for HackMD:

• Secrets: the server acts with your credentials. Create a dedicated key with minimum rights and an expiry date.

Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.

Project activity and maintenance

Created on March 18, 2025, the yuna0x0/hackmd-mcp repository has 67 stars and 16 forks, with 0 open issues. It has more stars than 58% of the servers in the directory. Last change 3 months ago. Version published in the registry: 1.5.7 (November 28, 2025).

Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.