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 49–58 of 58
- 0.578score
Agent SDK Go
Ingenimax
Go framework for AI agents with memory, tool execution, MCP, agent skills, multi-agent patterns and evaluation.
HarnessAFreshness: A★ 640 - 0.575score
Swiftide
Bosun
Rust framework with an agent harness, typed task graphs and streaming indexing and RAG pipelines for LLM applications.
HarnessAFreshness: A★ 795↓ 188/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 - 0.568score
dexto
truffle-ai
Open agent harness for AI applications, with a YAML-configured coding agent, sessions, tools, MCP support and a CLI.
HarnessAFreshness: A★ 657 - 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 - 0.549score
Inngest AgentKit
Inngest
Framework for AI agents and multi-agent networks where a router picks which agent runs, with tools and MCP support.
HarnessCFreshness: C★ 956↓ 12.1K/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 - 0.514score
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 - 0.408score
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