CrewAI released version 1.10.1 (March 2026, 44.6K GitHub stars, 12M+ monthly downloads) with the deepest MCP integration among major frameworks — three transport mechanisms (Stdio, SSE, Streamable HTTPS) accessible via crewai-tools[mcp] with automatic connection lifecycle, transport negotiation, and tool discovery. Agents declare MCP servers inline; the framework handles the rest. Positions CrewAI as the MCP-native choice as the protocol becomes the de facto agent interoperability standard.