Next Generation MCP service to query the NSF Open Knowledge Network Knowledge Graphs
概览
An MCP server for querying the (https://apps.okn.us/federation/sparql) over the Proto-OKN knowledge graphs. It lets an LLM discover which knowledge graphs are relevant (from the okn-registry descriptions), then run SPARQL queries scoped to one or more named graphs of the form https://purl.org/okn/frink/kg/{shortname}. Proto-OKN — the — is a National Science Foundation initiative (with NASA, NIH, the National Institute of Justice, NOAA, and the U.S. Geological Survey) that funds research teams to build a publicly accessible, interconnected set of data repositories and knowledge graphs. The graphs span domains such as health, the environment, criminal justice, space exploration, and supply-chain security, and are served together over the federated SPARQL endpoint that this server queries. The okn-registry catalogs the participating knowledge graphs.
README
以下为原文 README 节选，完整内容请查看原文。
mcp-okn
An MCP server for querying the federated SPARQL endpoint
(https://apps.okn.us/federation/sparql) over the
Proto-OKN knowledge graphs.
It lets an LLM discover which knowledge graphs are relevant (from the
okn-registry descriptions), then run
SPARQL queries scoped to one or more named graphs of the form
https://purl.org/okn/frink/kg/{shortname}.
About Proto-OKN
Proto-OKN — the Prototype Open Knowledge Network — is a National Science Foundation initiative (with NASA, NIH, the National Institute of Justice, NOAA, and the U.S. Geological Survey) that funds research teams to build a publicly accessible, interconnected set of data repositories and knowledge graphs. The graphs span domains such as health, the environment, criminal justice, space exploration, and supply-chain security, and are served together over the OKN federated SPARQL endpoint that this server queries. The okn-registry catalogs the participating knowledge graphs.
Components of mcp-okn
This repository ships one MCP server, two Agent Skills, and relies on two external literature MCPs — each with a distinct role:
| Component | Role |
|---|---|
| mcp-okn | Federated OKN query service: discovers the relevant Proto-OKN graphs, writes SPARQL scoped to named graphs, aligns across KGs via crosswalks, and returns grounded rows with provenance and transcripts. |
| okn-report-style | Report & reproducibility skill: turns an OKN analysis into a polished, reproducible deliverable (Markdown / HTML / Excel / figures / maps), tracking sources, versions, queries, and caveats. |
| okn-bioanalysis | Biomedical workflow skill: cross-KG analysis of genes, diseases, chemicals, and drugs — enrichment, ortholog projection, mechanistic maps — ranking hypotheses by evidence and calling the literature MCPs to validate. |
| PubMed & Paperclip | Literature evidence validation: search PubMed and full-text collections, corroborate OKN-derived claims against sources, add citations, and flag conflicts and uncertainty. |
安装
This server does not publish a one-line install command.
Open the repository installation guide 新手？先看 mcpskill.org 教程 →配置
{
"mcpServers": {
"mcp-okn-dev": {
"type": "url",
"url": "https://apps.okn.us/okn-mcp-dev/mcp"
}
}
}