Catalog

Lightweight framework for building multi-agent AI workflows. Provider-agnostic, supports OpenAI Responses API, Chat Completions API, and 100+ LLMs. Features sandbox execution, human-in-the-loop, tool guardrails, and built-in tracing.

Open-source Python framework for building LLM applications and agents. A uv monorepo of independently-versioned packages: core primitives, the v1 agent framework, legacy classic package, text splitters, standard tests, model profiles, and 15+ partner integrations.

Self-hosted, multi-channel gateway for AI agents. Run one Gateway on your own hardware and message an always-available AI assistant from Discord, Slack, Telegram, WhatsApp, Signal, iMessage, Matrix, and more. Agent-native (tool use, sessions, memory, multi-agent routing), plugin-heavy, terminal-first, MIT-licensed. Written in TypeScript for hackability.

The AI browser agent. Open-source async-Python (>=3.11) library that drives a real Chromium browser over the Chrome DevTools Protocol (CDP), letting LLM agents navigate pages, read the DOM, and act autonomously. PyPI: browser-use. Docs: docs.browser-use.com.

Open-source AI Gateway and Python SDK giving a single, unified OpenAI-format interface to 100+ LLM providers (OpenAI, Anthropic, Gemini, Bedrock, Azure, and more). Use it as a Python SDK for direct integration, or deploy the AI Gateway (Proxy Server) as a centralized service with virtual keys, spend tracking, budgets, guardrails, load balancing, and an admin dashboard. MIT-licensed, by BerriAI (YC W23). PyPI: litellm; docs: docs.litellm.ai.

Lean, fast Python framework for building autonomous multi-agent AI systems, independent of LangChain. Offers two paradigms: Crews (autonomous agent teams) and Flows (event-driven orchestration).

Comprehensive skills library for Claude AI and Claude Code -- 362 production-ready skill packages bundling domain expertise, Python tools, reference guides, and strategic frameworks across 18 domains. Distributed as 88 marketplace plugins. (v2.11.2 + unreleased productivity coverage expansion -- vendored microsoft/SkillOpt nightly self-improvement plugin skillopt-sleep; new productivity plugins weekly-review, deep-work, meetings, and fable-goal.)