CodeQL MCP Server
This project runs a Model Context Protocol (MCP) server that wraps the CodeQL query server. It enables tools like [Cursor](
JordyZomer
README
CodeQL MCP Server
This project runs a Model Context Protocol (MCP) server that wraps the CodeQL query server. It enables tools like Cursor or AI agents to interact with CodeQL through structured commands and doc search.
Features
- ✅ Register CodeQL databases
- ✅ Run full queries or quick-evaluate a symbol
- ✅ Decode
.bqrsfiles into JSON - ✅ Locate predicate/class symbol positions
File Structure
| File | Purpose |
|---|---|
server.py |
Main FastMCP server exposing CodeQL tools |
codeqlclient.py |
CodeQLQueryServer implementation (JSON-RPC handler) |
Requirements
Install with uv:
uv pip install -r requirements.txt
or with pip:
pip install fastmcp httpx
Running the MCP Server
uv run mcp run server.py -t sse
- Starts the server at http://localhost:8000/sse
- Required for Cursor or AI agent use
Cursor Config
Make sure your .cusor/config.json contains:
{
"mcpServers": {
"CodeQL": {
"url": "http://localhost:8000/sse"
}
}
}
Notes
- Tools like Cursor will invoke these commands directly via natural language.
- You must have a codeql binary in your $PATH, or hardcode its path in codeqlclient.py.
- You should probably specify query locations, query write locations and database paths in your prompts.
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