Work and projects
Connect Gmail to Hypamoon
Yes, with one catch. Gmail has an open API that you can use yourself, but it signs in with OAuth only, and that takes more work in a Hypamoon adapter today.
OpenThe check
Three questions about the API of Gmail, answered from its own docs.
- Public API docs
- Yes. Read the docs
- A key you create yourself
- Yes. Create an OAuth client or a service account yourself in your own Google Cloud project; for Workspace, a Super Admin can grant domain-wide delegation. developers.google.com
- Versions or a changelog
- Yes. Versioned REST API, v1. developers.google.com
- How it signs in
- OAuth 2.0 with a client from your own Google Cloud project, or a service account with domain-wide delegation in a Workspace domain.
- Webhooks
- Yes. It can tell your app when something changes. developers.google.com
- Hosting
- Cloud
What you can build
Search your mail from your chat, draft a reply for you to send, and file incoming invoices in the right folder.
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
- Gmail signs in with OAuth or signed requests only, with tokens that expire. The Hypamoon vault holds a fixed key today, so an adapter for Gmail takes more work: ask your chat to check this first.
- Part of Google Workspace, which has its own entry; this entry is for people looking for this app on its own. Push notifications go through Google Cloud Pub/Sub. Scopes that read mail are restricted, so an app for users outside your own organization needs Google's verification.
Try it in your chat
Fill in what to read and write, and send it.
Build the Hypamoon recipe build-an-adapter for Gmail. API docs: https://developers.google.com/workspace/gmail/api/guides. 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 7 November 2026.
- developers.google.com/workspace/gmail/api/guides
- developers.google.com/workspace/guides/create-credentials
Gmail 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 Gmail. Found something that changed? Tell us at support.
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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 Gmail?
Connect your chat once, then ask it to build the adapter.
Works in Claude, ChatGPT and Copilot. Add to Claude Add to ChatGPT 
Add to Copilot