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 25–37 of 37
- 0.578score
agentUniverse
Ant Group
Python multi-agent framework with PEER and DOE collaboration patterns and configurable LLM vendors such as Qwen, DeepSeek and OpenAI.
HarnessAFreshness: A★ 2.4K↓ 69/wk - 0.571score
Julep
Julep AI
Python framework for durable AI agents built as dataflows that resume after crashes, retry safely and record each step.
HarnessBFreshness: B★ 6.6K↓ 368/wk - 0.566score
LightAgent
wanxingai
Python agent framework for OpenAI-compatible agents with tools, memory, MCP connections, multi-agent collaboration and workflows.
HarnessAFreshness: A★ 1.2K↓ 61/wk - 0.563score
guidance
guidance-ai
Python library for steering language models by constraining output with regex and grammars and mixing control flow with generation.
HarnessCFreshness: C★ 21.8K↓ 3.2K/wk - 0.559score
Bindu
GetBindu
Python platform that gives agents a cryptographic identity, A2A communication and x402 payment requirements behind one bindufy() call.
HarnessBFreshness: B★ 10K↓ 104/wk - 0.540score
AgentForge
DataBassGit
Low-code Python framework for YAML-defined agents and multi-agent Cogs, with personas, prompt templates and memory nodes.
HarnessBFreshness: B★ 860↓ 241/wk - 0.525score
Qwen-Agent
Alibaba Qwen
Python framework for LLM applications built on Qwen models, with function calling, MCP, a code interpreter and RAG options.
HarnessDFreshness: D★ 17.2K↓ 21K/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 - 0.484score
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