IBM watsonx.ai Granite

IBM watsonx.ai Granite is a local MCP server: IBM watsonx.ai MCP by three.ws: chat, text generation, embeddings, and tokenization. Install it from npm as @three-ws/ibm-watsonx-mcp.

Claude CodeCodexAntigravity

commandprompt

Terminal

claude mcp add ibm-watsonx -e WATSONX_API_KEY=... -e WATSONX_PROJECT_ID=... -e WATSONX_SPACE_ID=... -e WATSONX_URL=... -e WATSONX_MODEL_ID=... -e WATSONX_EMBED_MODEL_ID=... -e WATSONX_API_VERSION=... -- npx -y @three-ws/ibm-watsonx-mcp

Run in your project folder. Add --scope user to use it everywhere.

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "ibm-watsonx": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/ibm-watsonx-mcp"
      ],
      "env": {
        "WATSONX_API_KEY": "...",
        "WATSONX_PROJECT_ID": "...",
        "WATSONX_SPACE_ID": "...",
        "WATSONX_URL": "...",
        "WATSONX_MODEL_ID": "...",
        "WATSONX_EMBED_MODEL_ID": "...",
        "WATSONX_API_VERSION": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

• Runtime: Node.js 18+ (runs with npx).
• MCP client: Claude Code, Codex, Antigravity, Claude Desktop, Cursor or any other client that speaks MCP over stdio.
• Environment variables: WATSONX_API_KEY, WATSONX_PROJECT_ID, WATSONX_SPACE_ID, WATSONX_URL, WATSONX_MODEL_ID, WATSONX_EMBED_MODEL_ID, WATSONX_API_VERSION