Knowledge Graph GitHub Repositories (2026) · Open Source Tools

Open-source memory and context for user-aware agents: scoped memory, provenance, retrieval quality, correction, boundaries, evals, and MCP/HTTP access.

LeanKG: Stop Burning Tokens. Start Coding Lean.

Local-first code intelligence for AI assistants. Turns your codebase into a knowledge graph your AI can query, navigate, and remember. 25 MCP tools.

OpenSRE — the memory-first AI SRE. Self-hosted incident investigation with episodic memory, knowledge graph, web console, Slack & Teams. opensre.in

Bitemporal AI memory system: six-variable decay, time-graded recall, TTL expiry, dedupe, competitive retrieval (Neo4j + PostgreSQL + Redis)

Generic Linked Data browser and UX component framework. Apache license.

Ontology-Augmented Generation for AI agents.

A cognition aware database engine for AI agent memory. Purpose built in Rust with WAL, HNSW, knowledge graphs, and speculative context pre assembly. Not a wrapper, a ground up storage engine that thinks.

ForgeDock — autonomous AI dev pipeline for Claude Code. GitHub as agent memory: issue in, PR out.

WordLift brings the power of Artificial Intelligence to beautifully organize content. Attract new readers and get their true attention.

Harness as code — the Terraform for AI agents. Define your agent team AND its memory once, deploy to Claude Code, OpenClaw, Cursor, Codex, Gemini, Copilot, Kiro. Declarative .at language + agent-maintained, Obsidian-portable company brains + interactive visualizer.

Evidence validation and policy engine for AI-assisted biological curation

DMX Knowledge Building Platform

Turn long ChatGPT conversations into visual maps — jump back to any message, organize topics, and export your knowledge.

Local graph memory for coding agents. Store decisions and lessons in SQLite and recall context across sessions.

Write papers as graphs. Inspect propositions and relationships, and collaborate with AI agents in a local Windows workspace.

In-memory graph database and Gremlin traversal engine in Rust: browser playground, CLI, MCP server for AI agents, durable store, Python bindings.

OKF (Open Knowledge Format) — curated catalog of tools, plugins, skills, proposals, and docs for agent-friendly knowledge. YAML-driven, agent-searchable, MCP-ready.

Heal your Markdown files: convert to outline, list tasks and more tools to come

OnCo: total information dominance on cancer. A public, cited knowledge graph of oncology with a website, JSON API, MCP server and CLI: one page per cancer, treatment, target, trial, institution, person and idea.