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

Claude Code plugin: delegate to Codex, Gemini, Cursor, GitHub Copilot, and Qwen CLIs via their native protocols (ACP, ASP). Use /gemini:research, /cursor:debug, /codex:execute, /copilot:review and more — Claude can also auto-dispatch.

AgentStack is a production-grade multi-agent framework built on Mastra, delivering 50+ enterprise tools, 25+ specialized agents, and A2A/MCP orchestration for scalable AI systems. Focuses on financial intelligence, RAG pipelines, observability, and secure governance. ACP Openclaw, Gemini CLI, Opencode

Qt C++ library for working with AI/LLM Providers and MCP

an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM