Sandbox
64 repos · Frameworks & SDKs · TestingClear
microsoft/
SkillOpt
microsoft/SkillOptFrameworks & SDKs

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.

17k
omnigent-ai/omnigentFrameworks & SDKs

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.

9.8k

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.

6.9k
mastra-ai/
mastra
mastra-ai/mastraFrameworks & SDKs

Mastra is the modern TypeScript framework for AI-powered applications and agents.

28k
strukto-ai/mirageFrameworks & SDKs

The World's First Virtual Terminal for AI Agents

3.6k
codeany-ai/
open-agent-sdk-typescript

Agent-SDK without CLI dependencies, as an alternative to claude-agent-sdk, completely open source

2.7k
google/adk-goFrameworks & SDKs

An open-source, code-first Go toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

8.8k
strands-agents/
harness-sdk

Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud.

7.2k
nitrocloudofficial/
nitrostack

The full-stack TypeScript framework to build, test, and deploy production-ready MCP servers and AI-native apps.

2.5k
Core-Mate/
OpenGUI
Core-Mate/OpenGUIFrameworks & SDKs

OpenGUI is an Android GUI agent framework for phone-use AI that can see, plan, and operate real mobile apps through the GUI.

1.8k
he-yufeng/CoreCoderFrameworks & SDKs

Minimal AI coding agent (~1,000 lines of Python) inspired by Claude Code. Works with any LLM. Think NanoGPT for coding agents. Formerly NanoCoder.

1.7k
gakonst/
nanocodex
gakonst/nanocodexFrameworks & SDKs

Building blocks for frontier OpenAI agents in Rust. Nanocodex empowers you with Codex-level performance anywhere.

483
OpenPetsHQ/
openpets
OpenPetsHQ/openpetsFrameworks & SDKs

Local first, desktop companion platform with animated pets, plugin SDK and coding-agent integrations.

1.2k
go-kratos/kratosFrameworks & SDKs

Your ultimate Go microservices framework for the cloud-native era.

26k
HezaoHezao/
poirot
HezaoHezao/poirotFrameworks & SDKs

Poirot is a deep research agent kernel built for those who care about how agents are architected.

217
ag2ai/
ag2
ag2ai/ag2Frameworks & SDKs

AG2 (formerly AutoGen): The Open-Source AgentOS.Join us at: https://discord.gg/sNGSwQME3x

4.9k
H-mmer/
pentest-agents
H-mmer/pentest-agentsFrameworks & SDKs

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.

904
evalstate/fast-agentFrameworks & SDKs

Code, Build and Evaluate agents - excellent Model and Skills/MCP/ACP/A2A Support

3.9k
kagent-dev/kagentFrameworks & SDKs

Cloud Native Agentic AI | Discord: https://bit.ly/kagentdiscord

3.7k
modelcontextprotocol/
java-sdk

The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI

3.7k
punkpeye/
fastmcp
punkpeye/fastmcpFrameworks & SDKs

A TypeScript framework for building MCP servers.

3.3k