Mason MCP Server

Modern agents are good at reading code. They're terrible at knowing what your team learned the hard way, what changes together, and whether yesterday's understanding still holds. Mason owns exactly that. It runs locally over stdio via the published package.

People connecting coding agent tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-22 · ★ 7 · #47 OF 194 MAINTAINED CODING AGENT · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Mason

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add adrianczuczka-mason -- npx -y mason-context

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "adrianczuczka-mason": {
      "command": "npx",
      "args": [
        "-y",
        "mason-context"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package mason-context - unscoped; check the name against the project README before installing

registry vendor namespace com.adrianczuczka - domain-verified with the official MCP registry

03 · Who maintains Mason

mason is maintained by adrianczuczka. It's the only MCP server we track from this author; the repo dates to Apr 2026.

04 · Facts

repository: github.com/adrianczuczka/mason
category: coding agent - ranked #47 of 194 actively-maintained coding agent servers as of 2026-08-25.
registry: com.adrianczuczka/mason (active, first published 2026-04-17 · 2 versions)
packages: npm:mason-context

05 · Mason FAQ

What is Mason?

Is Mason still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-22. We re-verify nightly.

How do I install Mason?

Run `npx -y mason-context`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Mason run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

06 · Alternatives to Mason

Alternatives to Mason

Maintained coding agent servers if Mason isn't the fit.

Pairs well with

Servers that cover what Mason doesn't - only shown when the pairing reason fits the companion.

More coding agent MCP servers · Agent Blueprint · AgentsKit Registry · Coldstart · Palace · Anima MCP Server

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