Movabletype Writer

日本語

MCP server for Movable Type.

It lets MCP-compatible AI tools such as Claude Desktop work with Movable Type so that AI-generated drafts can be created and edited directly inside MT.

You can brainstorm articles with an AI assistant, store the result as a Movable Type draft, and iterate on the same draft by asking the AI to revise sections.

Features

• 🤖 AI integration: Post drafts to Movable Type straight from Claude Desktop or any MCP client.
• 💾 Session tracking: Remembers the last edited draft so multi-step rewrites stay in context.
• ✏️ Rewrite ready: “Fix this paragraph” style prompts update the current draft in place.
• 📝 Draft management: List drafts and inspect individual draft details.

For safety this server intentionally focuses on collaborative draft creation. It does not allow:

• Deleting drafts or published entries.
• Publishing drafts.
• Editing already published entries or reverting them to drafts.

Requirements

• Node.js 22.7.5 or newer (current LTS 24.x is recommended).
• Movable Type 7 r.53xx or newer with Data API enabled.
  • Tested with Data API v4 and later.

Installation

If you intend to run it via npx, you can skip this section and jump to “Using with npx”.

git clone https://github.com/burnworks/mcp-movabletype-writer.git
cd mcp-movabletype-writer
npm install
npm run build

or simply install from npm:

npm install mcp-movabletype-writer

Configuration

1. Prepare Movable Type

1. In both the system dashboard and the target website/blog dashboard enable Tools → Web Services → Data API.
2. Open the MT user profile that will run the API calls and note the username and Web Services Password (this is different from the regular CMS login password).
3. Confirm the Data API endpoint URL (e.g. https://example.com/your_mt_path/mt-data-api.cgi).

2. Configure Claude Desktop

Open claude_desktop_config.json.

File locations

• Windows: %APPDATA%\Claude\claude_desktop_config.json
• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

You can also open the file from Claude Desktop → Settings → Administrator.

Example configuration for a local build

Append the following block. args must contain the full path to dist/index.js.
On Windows, escape backslashes such as mcp-movabletype-writer\\dist\\index.js.

{
  "mcpServers": {
    "movabletype-writer": {
      "command": "node",
      "args": [
        "/full_path_to/mcp-movabletype-writer/dist/index.js"
      ],
      "env": {
        "MT_API_URL": "https://example.com/your_mt_path/mt-data-api.cgi",
        "MT_USERNAME": "your_username",
        "MT_PASSWORD": "your_webservice_password",
        "MT_API_VERSION": "5",
        "MT_CLIENT_ID": "your_client_id",
        "MT_REMEMBER": "1"
      }
    }
  }
}

• MT_API_URL: URL to mt-data-api.cgi.
• MT_USERNAME: Movable Type username.
• MT_PASSWORD: Web Services Password from the MT user profile (do not use the normal login password).
• MT_API_VERSION: Data API version in use, e.g. 5, 6, 7.
• MT_CLIENT_ID: Any identifier composed of letters, _, or - (e.g. mcp-movabletype-writer).
• MT_REMEMBER: remember flag (0/1). Leave it at 1 to keep sessions active until sign-out. Use 0 only if you need very short-lived tokens.

Changing MT_API_VERSION lets you point the same binary at MT Data API v4/v5/v6/v7 without rebuilding. MT_CLIENT_ID must be set; the server exits if it’s missing. Keeping MT_REMEMBER=1 reduces the chance of token expiry mid-session.

Using with npx

You can run the published package with npx. In that case point command to npx:

{
  "mcpServers": {
    "movabletype-writer": {
      "command": "npx",
      "args": [
        "mcp-movabletype-writer"
      ],
      "env": {
        "MT_API_URL": "https://example.com/your_mt_path/mt-data-api.cgi",
        "MT_USERNAME": "your_username",
        "MT_PASSWORD": "your_webservice_password",
        "MT_API_VERSION": "5",
        "MT_CLIENT_ID": "mcp-movabletype-writer",
        "MT_REMEMBER": "1"
      }
    }
  }
}

Use [email protected] if you prefer to pin a specific version. The env settings are identical to a local build.

Advanced settings (power users)

Fine-tuning knobs that aren’t meant for day-to-day users live in internal-config.json. Copy internal-config.example.json to the project root (or wherever you run the server from), rename it to internal-config.json, and adjust the values.

• requestTimeoutMs: Timeout (milliseconds) for Movable Type HTTP requests. Defaults to 30000.

If the file is missing or contains invalid JSON the server falls back to the built-in defaults, so it’s safe to experiment.

Usage

Basic flow

User: ブログID 1に「MTプラグイン開発入門」という記事の下書きを作成して

Claude: create_draftを実行...
→ 下書きを作成しました（ID: 123）

User: タイトルを「初心者向けMTプラグイン開発」に変更して

Claude: update_last_draftを実行...
→ 記事を更新しました（ID: 123）

User: 本文に「はじめに」のセクションを追加して

Claude: update_last_draftを実行...
→ 記事を更新しました（ID: 123）

Tips

• If you manage multiple blogs, ask Claude to run list_sites and choose the correct blog_id from the result.
• Claude may default to HTML output; if you prefer Markdown drafts, explicitly request “save in Markdown”.
• Within a single conversation the server remembers the latest draft, so follow-up edits usually don’t require specifying entry_id.
• To edit another draft, ask for list_recent_drafts, pick an ID from the list, and provide it to update_draft.

See the tool descriptions below for details.

Available tools

list_sites

Returns available blogs/sites.

Claude: list_sitesで確認...
→ ID: 1, Name: "Tech Blog"
→ ID: 2, Name: "News"

create_draft

Create a new draft.

• Required: blog_id, title, body
• Optional: tags, categories

update_last_draft

Update the most recently created/edited draft.

• All parameters are optional; only supplied fields are changed.

update_draft

Update a draft by explicit ID.

• Required: blog_id, entry_id
• Optional: title, body, tags, categories

get_draft

Fetch draft details.

• Required: blog_id, entry_id

list_recent_drafts

List recent drafts.

• Required: blog_id
• Optional: limit (default 10)

Session storage

Information about the most recent draft is stored at ~/.mcp-mt/session.json:

{
  "lastEntryId": 123,
  "lastBlogId": 1,
  "lastUpdated": "2025-11-07T10:00:00.000Z"
}

This lets update_last_draft run without specifying entry_id.

For developers

Using environment variables with npm run dev

If you want to iterate with npm run dev (tsx) instead of npm run build, copy the example env file:

cp .env.example .env

MT_API_URL=https://example.com/your_mt_path/mt-data-api.cgi
MT_USERNAME=your_username
MT_PASSWORD=your_webservice_password
MT_API_VERSION=5
MT_CLIENT_ID=your_client_id
MT_REMEMBER=1

Then run:

npm install
npm run dev

For debugging, tools like @modelcontextprotocol/inspector make it easy to connect and exercise the MCP server while you develop.

Troubleshooting

Authentication errors

• Ensure MT_USERNAME, MT_PASSWORD (Web Services Password), and MT_CLIENT_ID are correct.
• Verify the Data API is enabled and that mt-data-api.cgi is accessible.

Cannot find drafts

• Use list_sites to confirm the correct blog_id.
• Run list_recent_drafts to see available drafts and their IDs.

Session keeps resetting

• Check that ~/.mcp-mt/session.json still exists.
• Restarting Claude Desktop starts a new MCP session (and thus a blank session.json).

License

MIT

References

• Movable Type Data API Document
• Model Context Protocol