codegraph-mcp
codegraph-mcp
Knowledge-Graph MCP Server für GitHub-Repositories. Nimmt den Code jedes GitHub-Repos in einen Neo4j-Graphen auf (Knoten für Repository / Datei / Funktion; Kanten CONTAINS / DEFINES / IMPORTS / CALLS) und stellt diesen Graphen als schreibgeschützte MCP-Tools für jeden MCP-Host bereit – Claude Desktop, opencode, Cursor oder jeden Client, der das Model Context Protocol unterstützt.
Status
v0.1 – stdio-Transport, Neo4j 5.x-Backend, Python ast + tree-sitter (JS/TS/TSX)-Parsing.
Related MCP server: NOMIK
Schnellstart
git clone <codegraph-mcp> && cd codegraph-mcp
uv sync --extra dev # all deps pinned via uv.lock
docker compose up -d # Neo4j on bolt://localhost:7687
cp .env.example .env
uv run pytest -m "not slow and not integration"Ein Repository erfassen
uv run codegraph ingest https://github.com/<owner>/<name>
# → {"graph_id": "owner/name", "files": 142, "functions": 880, ...}Einen MCP-Host verbinden
Claude Desktop (claude_desktop_config.json)
{
"mcpServers": {
"codegraph": {
"command": "uv",
"args": ["run", "--directory", "C:\\path\\to\\codegraph-mcp", "codegraph", "serve"]
}
}
}opencode (in opencode.json)
{
"mcp": {
"codegraph": {
"type": "local",
"command": ["uv", "run", "--directory", "/path/to/codegraph-mcp", "codegraph", "serve"]
}
}
}Cursor (~/.cursor/mcp.json)
{
"mcpServers": {
"codegraph": {
"command": "uv",
"args": ["run", "--directory", "/path/to/codegraph-mcp", "codegraph", "serve"]
}
}
}MCP Inspector (zum Testen ohne MCP-Host)
uv run mcp dev src/codegraph/server.pyCLI
Befehl | Zweck |
| Repo klonen, parsen und in Neo4j laden |
| MCP-Server ausführen (stdio) – vom MCP-Host gestartet |
| Ein Repo aus Neo4j hart löschen (destruktiv) |
| Erfasste Repos auflisten |
Tools
Tool | Zweck |
| Erfasste Repos auflisten |
| Bestätigen, dass der Graph eines Repos existiert; Datei-/Funktionszahlen zurückgeben |
| Gestufte Baumansicht unter einem Pfad |
| Flaggschiff: Welche Dateien/Funktionen von einer Datei abhängen (oder von ihr abhängig sind) |
| Funktionen/Dateien nach Namen suchen |
| Detaillierte Informationen zu einem Knoten (Zeilenbereich, Art) |
Technologiestack
Python 3.11+, mcp>=1.27,<2 (stabil v1.x FastMCP), Neo4j 5.x, pydantic v2, tree-sitter, GitPython, pytest, ruff, mypy, uv.
Siehe CONTRIBUTING.md für Architektur, Konventionen und Teststrategie.
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