Agent Framework AI Tools

OpengapOpen Source

A framework-agnostic, git-native standard for defining AI agents

UpsonicOpen Source

Build autonomous AI agents in Python.

CohortOpen Source

Local-first Agent Runtime connecting LLMs to controlled tools, Chrome, desktop automation, MCP, context governance, and verifiable memory.

OpenRathOpen Source

An open-source, PyTorch-like runtime for dynamic multi-agent and multi-session workflows.

NanobotOpen Source

Your lightweight open-source personal agent.

EigentOpen Source

Eigent: The Open Source Cowork Desktop - Local and Free Alternative to Claude Cowork and Codex

Vibe SkillsOpen Source

Intelligent Skill routing and workflow orchestration for AI agents — +21.12 pp reward, −29.6% tokens on SkillsBench with DeepSeekV4Flash-VE.

HiveOpen Source

Multi-Agent Harness for Production AI

Trpc Agent GoOpen Source

A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, evaluation, and observability.

Fast AgentOpen Source

Code, Build and Evaluate agents - excellent Model and Skills/MCP/ACP/A2A Support

Best Of Agent HarnessesOpen Source

🏆 Ranked list of 187 AI agent harnesses, plus templates, playbooks, MCP, and learning resources. Rescored weekly.