✓
Tool
Category
Pricing
Free?
Updated
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
Hugging Face Agents
AI Agents
Free
✓
Mar 2026
→
Agent framework built into Hugging Face Transformers for model-powered tool use
Best for: Hugging Face
ControlFlow
AI Agents
Free
✓
Mar 2026
→
Python framework for building structured, controllable AI workflows
Best for: controlflow
Stagehand
AI Agents
Free
✓
Mar 2026
→
AI-native browser automation framework using LLMs to interact with web pages
Best for: browser-automation
XAgent
AI Agents
Free
✓
Mar 2026
→
Open-source autonomous agent with hierarchical planning and sub-agent coordination
Best for: autonomous
GPT-Pilot
AI Agents
Free
✓
Mar 2026
→
AI developer agent that iteratively builds production apps with human collaboration
Best for: developer-agent
SuperAGI
AI Agents
Free
✓
Mar 2026
→
Open-source framework for building and running autonomous AI agents at scale
Best for: agents
Agency Swarm
AI Agents
Free
✓
Mar 2026
→
Open-source framework for creating collaborative AI agent networks with specialized roles
Best for: agency-swarm
AgentScope
AI Agents
Free
✓
Mar 2026
→
Fault-tolerant distributed multi-agent platform from Alibaba for production systems
Best for: multi-agent
ChatDev
AI Agents
Free
✓
Mar 2026
→
Multi-agent software company simulation where AI roles collaborate to build software
Best for: multi-agent
CrewAI
AI Coding
Free
✓
Mar 2026
→
Open-source framework for building collaborative multi-agent AI systems.
Best for: open-source
Smolagents
AI Agents
Free
✓
Mar 2026
→
Lightweight Hugging Face agent framework where LLMs write code to use tools
Best for: Hugging Face
Semantic Kernel
AI Agents
Free
✓
Mar 2026
→
Microsoft SDK for building AI agents with plugins and memory
Best for: semantic-kernel
DSPy
AI Agents
Free
✓
Mar 2026
→
Stanford framework for algorithmically optimizing LLM prompts and agent pipelines
Best for: DSPy
SWE-bench
AI Coding
Free
✓
Mar 2026
→
Benchmark framework evaluating AI coding agents on real GitHub issues and PRs.
Best for: ai-platform