175 listed
Harnesses & SDKs
Frameworks and SDKs for building agents: the Claude Agent SDK, OpenAI Agents SDK, LangGraph, CrewAI and many more. Each page lists languages, packages, MCP and A2A support and how it orchestrates agents, with a link to the page every fact came from.
Showing 49–52 of 52
- 0.511score
OpenAI Swarm
OpenAI
Experimental Python library that teaches agent handoffs on the Chat Completions API; OpenAI now points users to its Agents SDK.
HarnessDFreshness: D★ 22.1K - 0.484score
MetaGPT
FoundationAgents
Python multi-agent framework that gives LLM agents software-company roles and SOPs to turn a one-line requirement into a project repository.
HarnessDFreshness: D★ 71K↓ 622/wk - 0.443score
Lagent
InternLM
Lightweight Python framework for LLM agents built as PyTorch-style layers, with agent memory kept as session state.
HarnessDFreshness: D★ 2.3K↓ 354/wk - 0.420score
Youtu-Agent
Tencent
Framework for building, running and evaluating autonomous agents, with a planner-based multi-agent mode, skills and agent RL training.
HarnessDFreshness: D★ 4.6K↓ 23/wk