# agenticdirect.io > A notebook of proofs of concept for agentic AI by Karan Rao: MCP servers, agents and small experiments, each one working, written up and open source. None of it is production software. Every project here is a proof of concept that runs against sandbox APIs. None is hardened, supported or production-ready. Each project page is also available as Markdown by adding `.md` to its URL. ## Projects - [Duffel MCP server](https://agenticdirect.io/projects/duffel-mcp.md): MCP server, Travel. An MCP server that lets an agent search, book, manage and cancel flights through the Duffel API from any MCP client, with tools for Duffel Stays. - [Hotelbeds MCP server](https://agenticdirect.io/projects/hotelbeds-mcp.md): MCP server, Travel. An MCP server that lets an agent find, price, book and cancel hotel stays through the Hotelbeds Booking API, and look up destinations and hotel details through the Content API. - [Hotel attach agent](https://agenticdirect.io/projects/hotel-attach-agent.md): Agent, Travel. An agent that takes a booked flight and suggests hotels for the trip conversationally, using live Hotelbeds sandbox data. ## Optional - [Project catalogue (JSON)](https://agenticdirect.io/projects.json): every project with install commands, endpoints and status - [Full text](https://agenticdirect.io/llms-full.txt): all project write-ups in one file - [Sitemap](https://agenticdirect.io/sitemap-index.xml)