# A2CR
A2CR is not an AI.
It is the baton that lets AI agents hand work to one another.
A2CR is an MCP-first work-continuation layer.
It lets MCP-capable tools save compact WorkBaton checkpoints and resume work later from another window, model, or AI agent configured with A2CR MCP.
Important URLs:
- Guide: https://a2cr.app/en/guide
- AI agent guide: https://a2cr.app/en/agent-guide
- Pricing: https://a2cr.app/pricing
- MCP endpoint: https://a2cr.app/mcp
- LLM notes: https://a2cr.app/llms.txt