Restaurants
Connect Guestplan to Hypamoon
Possible, with help from Guestplan. The API is documented, but you cannot just create a key: access goes through Guestplan first.
PossibleThe check
Three questions about the API of Guestplan, answered from its own docs.
- Public API docs
- Yes. Public API reference with a Swagger 2.0 specification. Read the docs
- A key you create yourself
- No. You request an AccessKey by contacting Guestplan. docs.guestplan.com
- Versions or a changelog
- Yes. Versioned base path (/v1); no changelog found. docs.guestplan.com
- How it signs in
- An AccessKey from Guestplan, sent in the Authorization header.
- Webhooks
- No. docs.guestplan.com
- Hosting
- Cloud
- Condition
- The AccessKey is issued by Guestplan on request. The export endpoint needs the Ultimate plan; the occupancy endpoint is for Guestplan partners only.
What you can build
Check availability and look up reservations from your chat, and create, change or cancel reservations with your approval.
Your chat writes it as a Hypamoon adapter from the docs above. Reading starts after you click Allow in the portal, and every write waits for your approval, one call at a time. How adapters work
Good to know
- Your adapter uses a fixed key: you paste it once in the Hypamoon portal, never in the chat, and it only goes to the API host you allow.
- Limit of 10 requests per second per IP address, with bursts up to 20.
Try it in your chat
First get access from Guestplan. Then fill in what to read and write, and send it.
Build the Hypamoon recipe build-an-adapter for Guestplan. API docs: https://docs.guestplan.com/. Read: [what]. Write: [what, or nothing].
In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. The full recipe
Sources
Checked on 1 November 2026.
Guestplan is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with Guestplan. Found something that changed? Tell us at support.
Tool not listed? Ask the chat to check its API.
The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found.
Check if [software] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used.
Fill in the name of your software. Checking needs no connection to Hypamoon.
Ready to connect Guestplan?
Connect your chat once, then ask it to build the adapter.
Works in Claude and ChatGPT. Add to Claude Add to ChatGPT