MIT agent runtime. Rechecked: 144,198 GitHub stars. Pay model API only. Live Flash peak $0.44/$1.32 per 1M, not the old $0.14/$0.28 row.

Open multi-agent framework. Rechecked: MIT, 69,865 stars. CLI is $0 + BYOK. MGX is now Atoms: Free $0 / Pro from $20.

Ultra-lightweight, self-hosted personal AI agent framework in Python with WebUI, tools, long-term memory, MCP integrations, multi-agent workflows, and scheduled automation.

MIT agent framework. Rechecked: 144,367 GitHub stars. Hosted traces are LangSmith Developer $0 / Plus $39 per seat. Not LangServe-as-the-product.

Open-source AI agent framework developed by Luki Labs, providing flexible agent orchestration and workflow management capabilities for building complex AI application scenarios. link-agents is an enhanced fork with deep Claude Code integration.

Enhanced fork of Craft Agents with GUI for Skills management, session import/export, one-click installation, no manual config editing required. Optimized for Claude Code + Agents workflows, making AI Agents accessible to everyone.

Meland Labs workspace that turns expert methods into a self-evolving digital employee. Early access v0.6.1. Free, Basic $15/mo, Pro $39/mo.

Self-improving open-source AI agent by Nous Research with a built-in learning loop, multi-channel gateway, and model-agnostic runtime. MIT licensed.