ChatGPT
You create a connector in ChatGPT's developer mode; no key is pasted — you grant access on the Treyza consent screen that opens in your browser.
Where to find: In ChatGPT, Settings → Apps & Connectors → Advanced → developer mode Who it's for: Store owners who use ChatGPT In short: You create a connector in ChatGPT's developer mode; no key is pasted — you grant access on the Treyza consent screen that opens in your browser.
No key is used on this page
ChatGPT's connector screen offers no field for a custom header such as Authorization. So, as with Claude Desktop, the connection is made through the consent screen (OAuth): you give only the address and approve the grant yourself on the Treyza screen in your browser.
Step-by-step setup
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In ChatGPT, turn on developer mode under Settings → Apps & Connectors → Advanced.
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Create a new connector and choose OAuth as the authentication type.
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Paste this as the server address:
https://api.treyza.co/mcp -
Save. ChatGPT redirects you to Treyza in your browser.
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Sign in to your Treyza account if you are asked to.
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On the consent screen that opens, pick the store and the tool packs and press Allow.
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You return to ChatGPT and the connector shows as connected.
If ChatGPT asks for an OAuth Client ID / Client Secret, leave them blank. Treyza identifies the client itself.
The consent screen
The consent screen is the same as in Claude: store selection, tool packs, read only by default and a Basic pack that cannot be turned off. Details: Claude Desktop and claude.ai
The grant you give appears in the panel as a row with an OAuth badge and is taken back instantly with Revoke.
Which ChatGPT surface is supported?
This calls for honesty, because ChatGPT has more than one connector surface:
| Surface | Status |
|---|---|
| Developer mode connector | Supported — the route on this page |
| Deep research connector | Not supported yet |
| Company knowledge connector | Not supported yet |
The reason: developer mode does not require particular tools from the server it connects to — Treyza's own tools can be used as they are. The deep research and company knowledge surfaces, on the other hand, require two specific search tools named search and fetch; Treyza does not offer those two today. Support for those surfaces is planned.
How do you know it works?
Ask ChatGPT:
Which store are you connected to in Treyza?
If it writes your store's name, you are ready. Tried-out examples: Example scenarios
Something went wrong?
- If the consent screen says the request is invalid or expired, delete the connector and add it again.
- If ChatGPT does not connect the connector, make sure the address ends with
/mcp. - Other errors: Troubleshooting
The screen names and developer-mode behaviour on this page come from OpenAI's own documentation dated 20.09.2026. Menu names may change as the app is updated.
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Cursor, VS Code and other apps
In these apps you paste your key into a configuration file; each app's file format is slightly different.
Security and permissions
A key receives a subset of your own permissions, read only is recommended, permissions only ever narrow, and revoking takes effect immediately.