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 1–8 of 8
- 0.851score
Strands Agents
AWS
Open-source Python and TypeScript SDK for model-driven agents, with tools, MCP, multi-agent patterns and streaming.
HarnessAFreshness: A★ 8.9K↓ 8.9M/wk - 0.787score
trueforge
truefoundry
Open-source agent harness that runs the model loop for you, with MCP tools, skills, sandboxing, approvals and a chat UI.
HarnessAFreshness: A★ 6.4K - 0.673score
Cloudflare Agents SDK
Cloudflare
TypeScript SDK for persistent AI agents on Cloudflare Durable Objects, with state sync, scheduling and MCP support.
HarnessAFreshness: A★ 5.9K - 0.650score
agent-governance-toolkit
microsoft
Policy enforcement, identity, sandboxing and reliability tooling for autonomous AI agents, installable with one pip command.
HarnessAFreshness: A★ 6.5K↓ 28.3K/wk - 0.635score
agentos
framerslab
TypeScript agent framework with persistent cognitive memory, multi-agent orchestration and one dispatch interface across 13 LLM providers.
HarnessAFreshness: A★ 681↓ 13.1K/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 - 0.559score
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 - 0.549score
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