# mcp-proto-okn

> mcp-proto-okn — sbl-sdsc-mcp-proto-okn. Use this tool when you need to query SPARQL endpoints, especially for NSF-funded Proto-OKN knowledge graphs, to retrieve specific data and insights. It solves problems related to accessing and analyzing complex knowledge graphs, providing a specialized interface for querying and retrieving data. The tool accepts SPARQL queries as input and returns relevant data as output, ideal for use cases involving data analysis and knowledge graph exploration.

Canonical page: https://skillsregistry.net/skills/sbl-sdsc-mcp-proto-okn  
JSON: https://api.skillsregistry.net/v1/skills/sbl-sdsc-mcp-proto-okn

## Description

A Model Context Protocol (MCP) server that provides tools for querying SPARQL endpoints, with specialized support for NSF-funded Proto-OKN (Prototype Open Knowledge Network) knowledge graphs hosted on the FRINK platform.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Category:** other
- **Updated:** 2026-09-27

## Source

- **Source listing:** [GitHub](https://github.com/sbl-sdsc/mcp-proto-okn)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "sbl-sdsc-mcp-proto-okn"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/sbl-sdsc-mcp-proto-okn` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/sbl-sdsc-mcp-proto-okn/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt