knowledge graph

An open-core AI memory engine that stores structured facts in a graph, supports MCP clients, and can run local-first or as a hosted cross-app service.

A local SQLite-based memory database for AI agents with graph memory, hybrid search, and a tamper-evident thought/edge journal.

crune is a static web dashboard and CLI for analyzing Claude Code session logs. It offers session playback, analytics, semantic knowledge graph generation, and reusable skill synthesis from prior sessions.

Learnlance is an open-source tool that watches AI coding agents and turns the code they write into a personal knowledge graph of concepts learned. The repo shows installation, setup, supported agents, CLI commands, and the core workflow.

A Python GraphRAG library for PostgreSQL that combines entity/relation extraction, pgvector embeddings, graph traversal, and full-text search to answer questions with time-aware updates.

Rowboat is an open-source desktop AI coworker that keeps long-term memory in a local Markdown knowledge graph and includes built-in surfaces like email, browser, notes, meeting transcription, and code mode.

A vocabulary-driven graph memory library for AI agents, with storage backends, indexing pipelines, and MCP servers for building persistent structured memory into agent workflows.

Local-first AI memory layer for LLM apps with persistent knowledge graph storage, entity extraction, semantic retrieval, and API endpoints for ingesting and retrieving context.

Rubi is a knowledge graph and context manager for AI coding agents. It helps shorten sessions, reduce re-reading, and recall project knowledge for tools like Claude Code, Codex, Gemini CLI, Cursor, Copilot, and local models.

Codeknow turns a codebase into a queryable knowledge graph for architecture analysis, impact detection, drift tracking, onboarding tours, and refactoring guidance. It runs without LLM keys, supports 25+ languages, and exposes a broad CLI plus export formats and interactive views.

Hubmesh is a Python library for multi-hop GraphRAG retrieval planning on top of existing vector databases. It adds centrality-aware seed selection, budget-aware context packing, entity graph building, and an MCP server for agent/tool integrations.

An infinite canvas that turns LLM conversations, readings, and notes into an editable thought graph. It supports human-in-the-loop workflows, cited passages, replayable dependencies, and local-first backups.

Local-first federated search for AI agents that queries transcripts, files, a knowledge graph, a vector store, and the web, then merges results with trust-weighted ranking.

Stele is a hosted shared memory layer for AI coding agents. It keeps decisions, tasks, lessons, and risks in a project graph that Claude Code, Cursor, Codex, and other MCP-compatible tools can read and write.

Compass is a local-first code knowledge graph engine in Rust that turns codebases and project artifacts into searchable, queryable graphs. The page shows support for architecture mapping, change-impact analysis, historical graph diffs, deterministic CompassQL queries, and integrations like VS Code, MCP, and export form

A cognitive memory engine for AI agents with temporal decay, contradiction detection, autonomous consolidation, knowledge graph support, and ANN recall via HNSW. The repo shows Rust and Python usage, MCP client setup, and a quick-start path for agents and developers.

Open-source agent harness for learning difficult things. It uses AI agents to measure your understanding, plan lessons, teach step by step, and keep a persistent knowledge graph across sessions.

A Lean 4 relational knowledge language for project relationships, rules, and queries, with a Clojure runtime/toolchain and examples inspired by Zanzibar.

HelixDB is an OLTP graph-vector database built in Rust, aimed at AI apps, knowledge graphs, and memory layers. The page shows the product’s core model, CLI workflow, SDK examples, and local setup commands.

Portia is a copilot for data work that connects to warehouses or local files, profiles tables, answers questions, draws charts, and builds dbt-shaped SQL with step-by-step review. It also ships as a Claude Code plugin and keeps a journal of decisions, checks, and lineage.

xysq.ai is a collaborative memory platform for AI-native teams and enterprises. It connects tools like Slack, Gmail, Drive, Notion, GitHub, Jira, and Linear to build shared context and provide agents with the right information when needed.

KINETK is an AI infrastructure product that turns social-web content into a real-time IP graph for creators, communities, and narratives. The site highlights an API and MCP for agents, multimodal embeddings, and a query layer for grounded retrieval.

FastAPI backend for the Brush Up tutor app. It retrieves from a markdown note corpus, expands context through graph neighbors, and calls Anthropic to generate grounded programming help for Python, Ruby, and JavaScript.

GitGalaxy is a Python-based static analysis and knowledge graph engine for deep repository intelligence. It maps codebases at the function level, supports 50+ languages, runs locally, and exports JSON and SQLite for querying and AI-agent workflows.