Is the ontosphere MCP server actively maintained?

The ontosphere MCP server was last committed 1mo ago and has 3 contributors. Issue health: 86% of issues resolved. AgentRank freshness score reflects real-time maintenance activity.

ontosphere MCP Server

Name: ThHanke/ontosphere
Rating: 4.1 (1 reviews)
Author: ThHanke

ThHanke/ontosphere

Score: 77.7 ↓ 2.6% Rank #2522 MCP Server

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Browser-based RDF/ontology knowledge graph editor — load RDF from files, URLs or SPARQL endpoints; author nodes and edges on the canvas; run OWL-RL reasoning; apply multi-algorithm layout and clustering. AI-native via MCP tool surface and relay bridge. Fully client-side, no backend required.

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Overview

ThHanke/ontosphere is a TypeScript tool. Browser-based RDF/ontology knowledge graph editor — load RDF from files, URLs or SPARQL endpoints; author nodes and edges on the canvas; run OWL-RL reasoning; apply multi-algorithm layout and clustering. AI-native via MCP tool surface and relay bridge. Fully client-side, no backend required. Topics: fair-data, graph-editor, json-ld, knowledge-graph, linked-data, mcp, ontology, owl, rdf, reactodia, reasoning, semantic-web, sparql, turtle, visualization, model-context-protocol.

Ranked #2522 out of 24846 indexed tools.

Ecosystem

TypeScript NOASSERTION

fair-datagraph-editorjson-ldknowledge-graphlinked-datamcpontologyowlrdfreactodiareasoningsemantic-websparqlturtlevisualizationmodel-context-protocol

Score Breakdown

Stars 15% 247

247 stars → growing community

Freshness 25% 1mo ago

Last commit 1mo ago → moderate activity

Issue Health 25% 86%

6/7 issues closed → responsive maintainer

Contributors 10% 3

3 contributors → small team

Dependents 25% 0

No dependents → no downstream usage

npm Downloads N/A

PyPI Downloads N/A

Forks 30

Description Detailed

License NOASSERTION

Weights: Freshness 20% · Issue Health 20% · Dependents 22% · Stars 10% · Contributors 8% · How we score →

How to Improve

License low impact

Add an MIT or Apache-2.0 license to signal trust and enable adoption

Freshness high impact

Last commit was 48 days ago — a recent commit would boost your freshness score

Dependents medium impact

No downstream dependents detected yet — adoption by other projects is the strongest trust signal

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Markdown

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Details

Stars: 247
Forks: 30
Open Issues: 1
Closed Issues: 6
Contributors: 3
Dependents: —
Language: TypeScript
License: NOASSERTION
Last Commit: 1mo ago

Matched Queries

topic:mcptopic:model-context-protocol

From the README

<div align="center">

# Ontosphere

**Browser-based RDF knowledge-graph editor with client-side OWL 2 DL reasoning, reasoner-verified repair, and a Model Context Protocol server for AI agents.**

&nbsp;

</div>

> **Author, reason over, and repair RDF/OWL knowledge graphs entirely in your browser.**
> Ontosphere loads RDF from files, URLs, or SPARQL endpoints; lets you author nodes and edges on a live canvas; runs a *complete* OWL 2 DL reasoner (Konclude, compiled to WebAssembly) with inferred triples shown inline; proposes reasoner-verified repairs for inconsistencies; and exposes everything to AI agents through a Model Context Protocol server. No backend, no install — just a browser tab.

<div align="center">

| I want to… | Start here |
|------------|------------|
| 🚀 &nbsp;Try the live demo | [Open Ontosphere ↗](https://thhanke.github.io/ontosphere) |
| 🎬 &nbsp;Watch feature tutorials | [Video tutorials](#video-tutorials) |
| 🤖 &nbsp;Connect an AI agent | [AI / MCP integration](

Read full README on GitHub →