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# Oxigraph MCP Server A Model Context Protocol (MCP) server for [Oxigraph](https://github.com/oxigraph/oxigraph), a fast and lightweight RDF triple store with SPARQL support. Oxigraph is a high-performance in-memory or file-based RDF graph database written in Rust. This MCP server provides a Claude-friendly wrapper for accessing PyOxigraph (the Python bindings for Oxigraph) through the Model Context Protocol. ## Quickstart ### Installation ```bash uv pip install mcp-server-oxigraph ``` ### Minimal Claude Desktop Configuration Add the following to your Claude Desktop MCP configuration: ```json "oxigraph": { "command": "uv", "args": ["run", "mcp-server-oxigraph"], "env": {} } ``` ### Setting a Default Database (Optional) To set a specific default database location, add the `OXIGRAPH_DEFAULT_STORE` environment variable: ```json "oxigraph": { "command": "uv", "args": ["run", "mcp-server-oxigraph"], "env": { "OXIGRAPH_DEFAULT_STORE": "~/.claude/my_knowledge_graph.oxigraph" } } ``` ## Why Use Oxigraph MCP? Oxigraph MCP is ideal for: - **Quickly building knowledge bases**: Store structured information in a queryable graph database - **Prototyping semantic applications**: Test data models and queries interactively - **Schema development**: Design and test RDF schemas and ontologies - **Local data storage**: Maintain persistent data without external services - **SPARQL exploration**: Experiment with complex SPARQL queries in an interactive environment ## Features This MCP server provides: - **Direct PyOxigraph access**: Clean, stateless wrapper for PyOxigraph functionality - **Multiple store management**: Create, open, and manage multiple file-based stores - **Comprehensive RDF support**: Work with all core RDF data types and operations - **Full SPARQL implementation**: Execute queries and updates with properly structured results - **Rich serialization options**: Support for all major RDF formats ## About Oxigraph [Oxigraph](https://gith…
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