Open source. Open possibilities.

A free 21-lesson Microsoft course for beginners to build generative AI applications, covering LLMs, prompt engineering, RAG, agents, fine-tuning, and more, with Python/TypeScript examples.

Lemory is a local middleware that transforms markdown notes (e.g., Obsidian vaults) into a context database for AI agents. It supports keyless on-device hybrid search, Korean-specific processing, hierarchical token savings, and knowledge graph visualization, integrating with various AI tools via MCP.

Open Kioku is a local repository intelligence tool for AI coding agents. It indexes codebases locally to provide context, generate bounded edit plans, and verify actual diffs against those plans.

Typesense is a fast, typo-tolerant, in-memory fuzzy search engine designed as an open-source alternative to Algolia and a simpler alternative to Elasticsearch.

Semantica is a graph-native infrastructure designed to provide structured context, deterministic reasoning, and full decision provenance for AI systems, serving as a semantic layer for LLMs and agents.

Haystack is an open-source AI orchestration framework for building production-ready LLM applications, RAG systems, and autonomous agents in Python.