A single Model Context Protocol (MCP) server that exposes 30+ Proto-OKN knowledge graphs through one unified interface. The server enables AI assistants (Claude, ChatGPT, GitHub Copilot, etc.) to discover graphs, inspect their schemas, query them with SPARQL, bridge identifiers across graphs, and combine results from multiple sources.

Paper:
https://arxiv.org/abs/2605.30283

GitHub repo:
https://github.com/sbl-sdsc/mcp-proto-okn

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