wikijs-mcp

An MCP server that lets Claude (or any MCP client) manage a Wiki.js instance through its GraphQL admin API — read and write pages, manage navigation and groups, and trigger Git storage syncs.

Published on PyPI as mcp-server-wikijs; the source repo is margus/wikijs-mcp. The admin focus (navigation, groups, Git sync, raw GraphQL) sets it apart from content-authoring Wiki.js MCP servers.

How it works: MCP does not run inside Wiki.js. This is a small stdio server your MCP client launches locally; it talks to https://<your-wiki>/graphql. If your Wiki.js is on a private network, the machine running this needs network reach to it.

Tools

Prerequisites

1. A running Wiki.js 2.x instance.
2. An API key: Administration → API Access → enable the API → New API Key (full access; the 2.x API isn't finely scoped). Copy the token.

Quick start

Run it on demand with uvx (no install) — set the two environment variables and go:

export WIKIJS_URL="https://wiki.example.com"
export WIKIJS_TOKEN="your-api-key"
uvx mcp-server-wikijs

Or install it:

pip install mcp-server-wikijs     # or: uv tool install mcp-server-wikijs
mcp-server-wikijs

The server speaks MCP over stdio, so running it directly just waits for a client — that's expected. Wire it into a client below.

Configuration

For standalone runs you can instead drop a .env next to where you launch it (cp .env.example .env); it's loaded automatically.

Register with an MCP client

Claude Code

claude mcp add wikijs --env WIKIJS_URL=https://wiki.example.com --env WIKIJS_TOKEN=your-api-key -- uvx mcp-server-wikijs

…or add it to .mcp.json / your settings:

{
  "mcpServers": {
    "wikijs": {
      "command": "uvx",
      "args": ["mcp-server-wikijs"],
      "env": {
        "WIKIJS_URL": "https://wiki.example.com",
        "WIKIJS_TOKEN": "your-api-key"
      }
    }
  }
}

Tip: keep secrets out of committed files — reference an env var that's already in your shell, e.g. "WIKIJS_TOKEN": "${WIKIJS_TOKEN}", and start the client from a shell where it's set.

Claude Desktop

Add the same block to claude_desktop_config.json (Settings → Developer → Edit Config), then restart Claude Desktop.

Examples

Once registered, ask your assistant things like:

• "List every page under clients/ in the en locale."
• "Create a page at guides/onboarding titled 'Onboarding' with this content: …"
• "Update page 31 — append a 'Troubleshooting' section, leave everything else."
• "Trigger a Git sync so the wiki re-imports the content repo."

Security

The Wiki.js API key is full-admin — treat it as a privileged credential. Keep it in your secrets manager / environment, never commit it, and revoke or rotate it anytime from Wiki.js → API Access. Every write tool acts with that key's full authority, so review mutations before approving them.

Development

git clone https://github.com/margus/wikijs-mcp
cd wikijs-mcp
uv sync                # install runtime + dev deps
uv run pytest          # run the test suite (no live wiki needed — httpx is mocked)
uv run ruff check .    # lint

The Wiki.js logic lives in src/wikijs_mcp/client.py (WikiJSClient), unit-tested against httpx.MockTransport. src/wikijs_mcp/server.py is a thin layer of MCP tool wrappers over it. See CONTRIBUTING.md.

License

MIT