Mason MCP Server

Remember why decisions were made · Catch outdated guidance · Find what else needs updating. It runs locally over stdio via the published package.

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

VERIFIED ACTIVE

LAST COMMIT 2026-09-28 · ★ 9 · #33 OF 221 MAINTAINED DOCUMENTATION · VERIFIED 2026-09-30

MIT · TypeScript servers · how we verify → /methodology

01 · Install Mason

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 · What Mason can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.20.1 · 2026-09-30

Local activity stats · Run mason stats for an aggregate summary, --json for structured details, or --session <id> to inspect a session. · mason setup enables local collection. An explicit mason stats --disable choice…

v0.19.2 · 2026-09-29

Use operating-system trusted certificates in standalone Mason, preserving bundled and extra certificates, so company TLS certificates work for upgrades and other requests. Report GitHub release lookup failures with…

v0.19.1 · 2026-09-25

Match supported dependency changes to named document passages; retain unmatched manifest recency as information without a review obligation. Preserve specific findings, original baselines and prior assessments, and…

04 · 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.

05 · Facts

repository: github.com/adrianczuczka/mason
category: documentation - ranked #33 of 221 actively-maintained documentation servers as of 2026-09-30.
release cadence: 10+ releases in the last 90 days (latest 2026-09-30)
registry: com.adrianczuczka/mason (active, first published 2026-04-17 · 13 versions)
packages: npm:mason-context

06 · Mason FAQ

What is Mason?

Remember why decisions were made · Catch outdated guidance · Find what else needs updating. It runs locally over stdio via the published package.

Is Mason still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-28 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Mason?

Run `npx -y mason-context`. 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.

07 · Alternatives to Mason

Alternatives to Mason

Maintained documentation 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 documentation MCP servers · Agent Module · Doc Bridge · Docvet · Clirank

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