SkillOpt is a text-space optimizer that trains reusable natural-language skills for frozen LLM agents through trajectory-driven edits, validation-gated updates, and deployable best_skill.md artifacts.

Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, Codex, Cursor, Pi, and custom agents — swap harnesses without rewriting, enforce policies and sandboxing, and collaborate in real time from any device.

TypeScript multi-agent framework that runs in your own environment: consequential actions wait for approval and every run leaves a verifiable record. Describe the goal, not the graph. 13 built-in providers (Claude, OpenAI, Gemini, DeepSeek and more) plus any OpenAI-compatible endpoint, local models included.
Mastra is the modern TypeScript framework for AI-powered applications and agents.
The World's First Virtual Terminal for AI Agents
Build resilient agents.

Build and run agents you can see, understand and trust.
Agent-SDK without CLI dependencies, as an alternative to claude-agent-sdk, completely open source

An open-source, code-first Go toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud.
The full-stack TypeScript framework to build, test, and deploy production-ready MCP servers and AI-native apps.
OpenGUI is an Android GUI agent framework for phone-use AI that can see, plan, and operate real mobile apps through the GUI.

Minimal AI coding agent (~1,000 lines of Python) inspired by Claude Code. Works with any LLM. Think NanoGPT for coding agents. Formerly NanoCoder.
Building blocks for frontier OpenAI agents in Rust. Nanocodex empowers you with Codex-level performance anywhere.
Local first, desktop companion platform with animated pets, plugin SDK and coding-agent integrations.
Trigger.dev – build and deploy fully‑managed AI agents and workflows

Your ultimate Go microservices framework for the cloud-native era.
Poirot is a deep research agent kernel built for those who care about how agents are architected.
AG2 (formerly AutoGen): The Open-Source AgentOS.Join us at: https://discord.gg/sNGSwQME3x
Bug bounty agent framework for Claude Code, Codex, Gemini, Cursor, Windsurf, Copilot, and OpenClaw — 48 agents, 26 commands, 19 CLI tools, 2 MCP servers, autonomous hunt loops, exploit chain builder.
Code, Build and Evaluate agents - excellent Model and Skills/MCP/ACP/A2A Support
Cloud Native Agentic AI | Discord: https://bit.ly/kagentdiscord
The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI
A TypeScript framework for building MCP servers.