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A barebones library for agents that think in code -- the agent writes and executes actual code to take actions, rather than emitting structured JSON tool calls.

Actively maintained

• AI Agents & Agent Tools

A library that lets AI agents control a real web browser -- clicking, typing, navigating and reading pages -- to complete tasks that require the open web.

Actively maintained

• AI Agents & Agent Tools

Powers 1000+ toolkits, tool search, context management and authentication so AI agents can actually take action, not just plan it.

Actively maintained

• AI Agents & Agent Tools

Official reference implementations of the Model Context Protocol -- the open standard now adopted across OpenAI, Google, Microsoft and Anthropic for connecting agents to tools and data.

Actively maintained

• AI Agents & Agent Tools

Python SDK for AI agent monitoring, LLM cost tracking and benchmarking, integrating with most major agent frameworks including CrewAI, LangChain and AutoGen.

Actively maintained

• AI Agents & Agent Tools

Takes a GitHub issue and autonomously tries to fix it with your LLM of choice; also usable for offensive cybersecurity and competitive coding challenges (NeurIPS 2024).

Actively maintained

• AI Agents & Agent Tools

Turns any professional software into an agent-native CLI tool via a single pip install, so AI agents can control real applications without fragile UI automation.

Actively maintained

• AI Agents & Agent Tools

A coding-agent skill that enforces YAGNI and minimal, pragmatic solutions -- installs into Claude Code, Cursor, Codex and 15+ other agent platforms.

Actively maintained

• AI Agents & Agent Tools

AI pair programming in your terminal -- Aider edits code in your local git repo, running tests and committing changes as it goes.

Well documented

• AI Agents & Agent Tools

Autonomous coding agent available as an IDE extension, CLI assistant or SDK, with a human-in-the-loop approval workflow for every file change and command.

Actively maintained

• AI Agents & Agent Tools

Build resilient, stateful agents as graphs -- explicit nodes and edges for control flow, rather than an implicit agent loop, for reliable long-running or multi-step workflows.

Actively maintained

• AI Agents & Agent Tools

A platform for building stateful agents with advanced memory that learns and self-improves over time, rather than resetting between conversations.

Actively maintained

• AI Agents & Agent Tools

The memory layer for AI agents -- drop-in persistent memory infrastructure that remembers context across conversations and sessions.

Actively maintained

• AI Agents & Agent Tools

AI-driven software development platform where autonomous agents can modify code, run commands, browse the web, and call APIs to complete engineering tasks end to end.

Actively maintained

• AI Agents & Agent Tools

Automates browser-based workflows using computer vision and LLMs to understand and interact with websites, even ones it hasn't seen before.

Actively maintained

• AI Agents & Agent Tools

Open-source framework for research and building systems of multiple communicating, role-playing AI agents that collaborate autonomously.

Actively maintained

• AI & Machine Learning

Multi-agent orchestration framework for building teams of collaborating, role-based AI agents that work together autonomously to complete complex tasks.

Actively maintained

• AI & Machine Learning

Framework for developing applications powered by large language models, agents and retrieval-augmented generation.

Actively maintained

• AI & Machine Learning

Type-safe agent framework from the team behind Pydantic, bringing familiar Python typing and validation patterns to LLM application development.

Actively maintained

• AI & Machine Learning

Microsoft's open-source SDK for integrating large language models into applications, with support for plugins, memory, and planning.

Actively maintained

• AI & Machine Learning