A Model Context Protocol server for Zotero integration that allows Claude to interact with your Zotero library.

1. Get your Zotero credentials:

   # First, create an API key at https://www.zotero.org/settings/keys
   # Then use it to get your user ID:
   curl -H "Zotero-API-Key: YOUR_API_KEY" https://api.zotero.org/keys/current

   The response will look like:

   {
     "userID": 123456,
     "username": "your_username",
     "access": {
       "user": {
         "library": true,
         "files": true,
         "notes": true,
         "write": true
       }
     }
   }

   The userID value is what you need.

2. Set environment variables:

   export ZOTERO_API_KEY="your-api-key"
   export ZOTERO_USER_ID="user-id-from-curl"

3. Verify your credentials:

   # Test that your credentials work:
   curl -H "Zotero-API-Key: $ZOTERO_API_KEY" \
        "https://api.zotero.org/users/$ZOTERO_USER_ID/collections"

   You should see your collections list in the response.

4. Install and run:

   # Install globally (recommended)
   npm install -g mcp-zotero
   mcp-zotero
   
   # Or run directly with npx
   npx mcp-zotero

To use this server with Claude Desktop, add the following to your Claude Desktop configuration:

{
  "mcpServers": {
    "zotero": {
      "command": "mcp-zotero",
      "env": {
        "ZOTERO_API_KEY": YOUR_API_KEY,
        "ZOTERO_USER_ID": YOUR_USER_ID
      }
    }
  }
}

• get_collections: List all collections in your library
• get_collection_items: Get items in a specific collection
• get_item_details: Get detailed information about a paper
• search_library: Search your entire library
• get_recent: Get recently added papers

If you encounter any issues:

1. Verify your environment variables are set:

   echo $ZOTERO_API_KEY
   echo $ZOTERO_USER_ID

2. Check the installation:

   npm list -g mcp-zotero

3. Try reinstalling:

   npm uninstall -g mcp-zotero
   npm install -g mcp-zotero