Best of the directory

Free GitHub repos for building AI agents

22 free, public GitHub repositories from the YourAIKit directory.

They come from 19 sources, led by OpenAI (3), Anthropic (2), and Agno (1). Each entry links to the original with the author's credit and license.

4 also have a hosted copy on this site, shipped with the upstream license, because that license allows it. The rest link to the source.

agent

Browser Use

An open-source library that lets an agent operate a web browser to finish tasks on websites.

By Browser Use · MIT

118,304 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

AutoGen

Microsoft's framework for multi-agent apps where agents talk to each other and to tools.

By Microsoft · CC-BY-4.0 (as reported by GitHub; see repo for code license)

61,449 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

CrewAI

A Python framework for teams of agents that each have a role and work through tasks together.

By CrewAI · MIT

59,795 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

LlamaIndex

A framework for agents and search over your own documents, with connectors for common data sources.

By LlamaIndex · MIT

52,536 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

LangGraph

LangChain's open-source framework for building agents as graphs of steps, with memory and human approval points.

By LangChain · MIT

43,399 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

Agno

An open-source framework and runtime for building agents with memory, knowledge, and tools.

By Agno · Apache-2.0

42,777 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

Awesome AI Agents (E2B)

A catalog of open-source and commercial AI agents, sorted by use case.

By E2B · Not stated (GitHub NOASSERTION)

30,482 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

smolagents

Hugging Face's small agent library, where the agent writes and runs short code to use its tools.

By Hugging Face · Apache-2.0

29,893 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

GenAI Agents (Tutorials)

Notebook tutorials for building many kinds of agents, from a simple assistant to multi-agent research systems.

By Nir Diamant · Not stated (GitHub NOASSERTION)

24,611 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

Pydantic AI

A Python agent framework from the Pydantic team that focuses on typed, validated outputs.

By Pydantic · MIT

20,678 GitHub stars as of Oct 17, 2026

Multiple AI toolsView Resource
agent

Claude Agent SDK (Python)

Claude Agent SDK is Anthropic's free Python library for building your own agents with the same loop, tools, and permissions that power Claude Code.

By Anthropic · MIT

8,293 GitHub stars as of Oct 17, 2026

Questions

Are these GitHub repos free?

Yes. All 22 are free at their source. YourAIKit does not sell anyone else's GitHub repos. Our paid packs contain only our own work.

Which AI tools do they work with?

By the platforms listed in the directory: Claude (3), and any assistant or setup (19). An item can count toward more than one.

Who made them?

OpenAI (3), Anthropic (2), Agno (1), Browser Use (1), and CrewAI (1), and 14 more. Credit and license are on every entry.

How is this list ordered?

Items used in a YourAIKit kit come first, then items with a hosted copy, then GitHub repos by star count (fetched from GitHub on the date shown), then by name. There are no paid placements and no ratings.

Missing one? Submit it.

YourAIKit products are workflow tools. They are not legal, tax, or financial advice.