TG_MCP

TG_MCP

A lightweight Python interface that exposes TigerGraph operations (queries, schema, vertices, edges, UDFs) as structured tools and URI-based resources for MCP agents.

Table of Contents

1. Features
2. Project Structure
3. Installation
4. Configuration
5. Connecting to Claude
6. Examples
7. Contributing
8. License

Features

• Schema Introspection
  Retrieve full graph schema (vertex & edge types).

• Query Execution
  Run installed GSQL queries or raw GSQL strings with parameters.

• Vertex & Edge Upsert
  Create or update vertices and edges programmatically.

• Resource URIs
  Access graph objects through tgraph://vertex/... and tgraph://query/... URIs.

• UDF & Algorithm Listing
  Fetch installed user-defined functions and GDS algorithm catalogs.

Project Structure

TG_MCP/
├── config.py            # Environment config (HOST, GRAPH, SECRET)
├── tg_client.py         # Encapsulates TigerGraphConnection and core operations
├── tg_tools.py          # `@mcp.tool` definitions exposing client methods
├── tg_resources.py      # `@mcp.resource` URI handlers
├── main.py              # MCP app bootstrap (`mcp.run()`)
├── pyproject.toml       # Project metadata & dependencies
├── LICENSE              # MIT License
└── .gitignore           # OS/Python ignore rules

Installation

1. Clone the repo

   git clone https://github.com/Muzain187/TG_MCP.git
   cd TG_MCP
   

2. Create & activate a virtual environment

   python3 -m venv venv
   source venv/bin/activate
   

3. Install dependencies

   pip install .
   

   Requires mcp[cli]>=1.6.0 and pyTigerGraph>=1.8.6.

Configuration

Set the following environment variables before running:

export TG_HOST=https://<your-tigergraph-host>
export TG_GRAPH=<your-graph-name>
export TG_SECRET=<your-api-secret>

These are read by config.py.

Connecting to Claude

This MCP server can be installed into the Claude Desktop client so that Claude can invoke your TigerGraph tools directly:

uv run mcp install main.py

After running the above, restart Claude Desktop and you’ll see your MCP tools available via the hammer 🛠 icon.

Examples:

Contributing

1. Fork the repository
2. Create a feature branch

   git checkout -b feature/YourFeature
   

3. Commit your changes

   git commit -m "Add YourFeature"
   

4. Push to branch

   git push origin feature/YourFeature
   

5. Open a Pull Request

Please ensure all new code is covered by tests and follows PEP-8 style.

License

This project is licensed under the MIT License.