Yes, on your terms and read-only. You create a Hostfully API key, run a small MCP server (or expose the Platform API as a custom GPT Action), and ChatGPT only sees the data your tools choose to expose, such as properties, leads, and orders. It cannot change anything unless you deliberately add write tools.
Your options today
ChatGPT added Model Context Protocol support in September 2025 and connects to remote MCP servers over HTTP, so the path is to host the Hostfully MCP server (or wire the Platform API into a custom GPT). You decide which endpoints the server wraps, which is what keeps access scoped: if the server only exposes read tools, that's all ChatGPT can ever do.
Your API key and agency UID live in the server's environment, not in the chat, and a read-only server never sends a write request to Hostfully. If you ever want to cut access, rotate or delete the key under Agency Settings and the connection goes dark instantly.
The hosted API route
One more option if the manual export loop above gets old: the RapidEye API exposes Hostfully as a hosted connector, so a custom tool or agent reads the data through one consistent surface instead of you ferrying CSVs. The catalogue is machine-readable, so an agent can discover it without help.