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 97–105 of 105
- 0.524score
AgentScope Runtime
Alibaba Tongyi Lab
Python runtime for agent apps with tool sandboxing and streaming agent APIs; archived, with features moved to AgentScope 2.0.
HarnessCFreshness: C★ 878↓ 2.8K/wk - 0.519score
Microsoft 365 Agents SDK
Microsoft
SDK for building agents in C#, JavaScript and Python that run on channels such as Microsoft Teams and Microsoft 365 Copilot.
HarnessAFreshness: A★ 1.1K↓ 255.5K/wk - 0.518score
Upsonic
Upsonic
Python framework for autonomous agents that work in a sandboxed workspace, and task agents with tools and MCP support.
HarnessCFreshness: C★ 8K↓ 244/wk - 0.517score
Adala
HumanSignal
Python framework for data labeling agents that learn skills from a ground-truth dataset through iterative feedback.
HarnessBFreshness: B★ 1.6K↓ 13/wk - 0.514score
mcp-agent
LastMile AI
Python framework for MCP-based agents with composable workflow patterns, MCP server creation and Temporal-backed durable execution.
HarnessDFreshness: D★ 8.6K↓ 15.2K/wk - 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 - 0.408score
Azure AI Foundry Agents SDK
Microsoft
Managed Microsoft Foundry service for building, deploying and scaling AI agents, with a Python client library on PyPI.
HarnessFFreshness: F↓ 1.1M/wk