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MCP servers tagged ontology
89 live MCP servers tagged "ontology", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with ontology.
N8n As Code
Give your AI agent n8n superpowers. 537 nodes with full schemas, 7,700+ templates, Git-like sync, and TypeScript workflows.
Kweaver Dip
KWeaver DIP is an enterprise-level digital employee platform, built on KWeaver Core. It provides an AI-native environment for developing and managing digital employees on business…
Objectstack
Apps small enough for AI to hold whole. ObjectStack turns the whole app — data model, UI, workflows, permissions — into typed metadata: a complete CRM in under 150k tokens, one co…
Open Ontologies
AI-native ontology engine: a Rust MCP server with tools for building, validating, querying, and reasoning over RDF/OWL ontologies. In-memory Oxigraph triple store, native OWL2-DL…
Brain In The Fish
Score any document. Prove every claim.
Ontosphere
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-algorith…
Public Data Lens
MCP-based discovery and judgment layer for Korea’s open data portal—helping AI agents find, compare, and assess datasets with explicit evidence, JSON-LD/DCAT metadata, and version…
Mykg
Knowledge graph extractor: Markdown (or any format) to knowledge graph with RDFS/OWL ontology
Metronix Memory
Metronix Memory is self-hosted memory infrastructure for AI agents: MCP-native, local-model friendly, with hybrid RAG, a temporal knowledge graph and ontology layer, durable memor…
Operational Ontology
A minimal, readable reference implementation of the Operational Ontology pattern. Palantir Foundry is one implementation; this is the concept, minimized.
Ecommerce AI Skills
Cross-border e-commerce AI knowledge base, designed to be read by people and installed by agents. 69 trilingual guides, 878 structured prompts, a 94-entity / 318-constraint domain…
Intentional Arrangement Skos
Build, validate, visualize, and publish SKOS taxonomies in your browser — standards-first, single self-contained file, with a REST API and MCP server.
Grove
A machine-enforced workflow protocol for AI coding agents that eliminates false progress. Tasks require verifiable evidence to close, while decisions, assumptions, and open questi…
Ontolith
Governed knowledge bases that humans and AI agents write together: append-only, bitemporal, conflict-aware.
Synaptic Memory
Brain-inspired knowledge graph: spreading activation, Hebbian learning, memory consolidation.
Orionbelt Analytics
Ontology-based MCP server that analyzes database schemas (PostgreSQL, Snowflake, ClickHouse, Dremio) and generates RDF/OWL ontologies with SQL mappings for fan-trap-free Text-to-S…
SoDam O Brain
클로드코드·코덱스 대화의 결정·약속·금지를 자동 기억, 주제·프로젝트별 분류 + 검색·2D/3D 지식그래프·타임라인 대시보드. 세션 자동 캡처, 세션 재개 시 맥락 기반 관련 기억 우선주입, 중복 기억 탐지·정리(완전일치 일괄정리 포함), 백업 목록·복원 안내, 대량 데이터 성능가드, 신뢰도 기반 검색 순위, 키보드로…
Autology
A Claude Code plugin that turns AI-assisted work into a shared living ontology. Captures decisions, conventions, and context autonomously into typed, interlinked knowledge nodes (…
2009scape Wiki API
Python based FAST API and MCP server containing game meta data and content to be used in the wiki or to deploy as an MCP server for an AI agent like Claude. This allows you to eas…
Ontoskills
OWL 2 skill compiler for deterministic AI agents — transforms SKILL.md into validated RDF/ Turtle ontologies with SHACL gatekeeper
Tardygrada
A verified runtime for trustworthy AI agents: every claim passes an 8-layer verification pipeline before it counts. Deterministic checks, explainable verdicts, no LLM judging an L…
Sofagent
FDE Harness: audit-first governance for AI coding agents — 24 rules, HMAC chain, snapshot rollback (83 tools, 13 plugins)
Cruxible
Governed state engine for AI agents: typed, executable knowledge artifacts with a code-like lifecycle
Montology
Design-system and vocabulary drift, enforced. Tailwind themes become law, rogue values get receipts, words live in a database agents inherit — one org ontology across every repo.
Khive
A knowledge graph your AI agents build, query, and grow. Built for agents that need structure beyond vectors
Aoe Engine
AOE (Agent Ontology Engine): compile external domain models and corpora into verified runtimes, query plans, and governed actions.
Hypabase
A Python hypergraph library with provenance and SQLite persistence.
MIF
Open standard for portable AI knowledge interchange — JSON-LD + Markdown dual format with W3C PROV provenance, bi-temporal tracking, entity relationships, and OKF support.
Ontorag
ontorag cli and core library
Biolink Agent
Multi-agent AI platform for biomedical & genomic research — query PubMed, ClinVar, Ensembl, UniProt and 10+ scientific databases with natural language.
Chorus Field
Governance-first recursive cognition infrastructure — LuisCore Chorus Field MCP client + agent CLI (bootstrap, post, feed)
Kontext Brain Ts
No description published.
Ontos
Audit-first, in-VPC knowledge-graph runtime with permission-aware traversal and per-fact provenance. Agent-native (MCP). Subset of Enclave.
VFB3 MCP
Explore Virtual Fly Brain data directly through your favourite LLM with the new VFB Model Context Protocol (MCP) tool
Metaseed
Create, edit, and validate scientific metadata against a standard (MIAPPE, ISA, Darwin Core, DiSSCo, ENA, PRIDE, MetaboLights, FAIRDOM-SEEK) from a YAML profile — CLI, web interfa…
Knomit
Git-backed knowledge management for AI agents: typed, provenanced facts in a distributed, decentralized knowledge base — not documents. Open source, MCP-native.
Routemind
Dynamic routing for agent knowledge. Areas advertise when they're relevant; the agent routes before it reads. MCP server, git-backed, no database.
Lexicon
Typed catalog of cognitive primitives, cross-referenced and lineage-grounded, with a surfacing function on top.
IPollo Onto
iPollo Onto · 业务本体 — 轻量、AI 原生的业务数据底座。独立运行，连接表格、关系与文档；作为 iPolloWork 插件使用。
Context Graph
Decision-aware knowledge graph on LightRAG: extends (head, relation, tail) triples into contextual quadruples (h, r, t, rc) that capture decision lineage — who approved what, why,…
Metamesh
W3C-standard ontology (SKOS/OWL/JSON-LD) + MCP server + Claude Skills. Captures business metadata once and delivers it to dbt, Semantic Layer, and AI/LLM contexts - bridging the 5…
Hpo Link
MCP server for the Human Phenotype Ontology (HPO): phenotype term lookup, the is_a hierarchy, cross-ontology mapping, and gene–phenotype–disease associations from HPO and HPOA.
Prax
Self-hosted personal knowledge base: bring in what you read, collect and write — papers, manuals, web pages, chats — then search it, ask it, see how it connects, and let your too…
Accounting Esperanto
Kontablo is a graph-based, UUID-keyed universal accounting ontology bridging local jurisdictional charts, international standards (IFRS/XBRL), the agentic economy (MCP/A2A/AP2), a…
Cassis Ontology Starter
Start a Cassis ontology on your own schema: CI gates, MCP config and the modeling guide, with none of the content. For the same loop on sample data, see cassis-demo-stallora.
Quack
One offline agent that answers across your tables, your documents, and the knowledge graph between them.
Code Graph
Pre-indexed code knowledge graph for Claude Code, Codex, OpenCode — fewer tokens, fewer tool calls, 100% local. Perfect for code exploration
Shared Memory
Memory Framework based on the idea of Architectural Decision Records, shared knowledge between AI agents (Claude Code, Codex, Antigravity ...). Agent installable, vector (Postgres…
Roboonto
Machine-readable robot ontologies for LLM agents — query what a robot can do, validate actions before they touch hardware. IEEE 1872-anchored. Ships Unitree G1 & AgiBot X2 packs.
AI Capability Reference
Evidence-backed reference for AI capabilities, pricing tiers, availability, and platform support across ChatGPT, Claude, Gemini, Copilot, and more.