✓
Tool
Category
Pricing
Free?
Updated
GPT-Pilot
AI Agents
Free
✓
Mar 2026
→
AI developer agent that iteratively builds production apps with human collaboration
Best for: developer-agent
Smolagents
AI Agents
Free
✓
Mar 2026
→
Lightweight Hugging Face agent framework where LLMs write code to use tools
Best for: Hugging Face
SWE-agent
AI Agents
Free
✓
Mar 2026
→
Research AI agent from Princeton that resolves GitHub issues by writing and testing code
Best for: software-engineering
ChatDev
AI Agents
Free
✓
Mar 2026
→
Multi-agent software company simulation where AI roles collaborate to build software
Best for: multi-agent
Semantic Kernel
AI Agents
Free
✓
Mar 2026
→
Microsoft SDK for building AI agents with plugins and memory
Best for: semantic-kernel