Connect in ChatGPT
Add APiM Galaxy to ChatGPT through developer mode, then pick it in any chat to map who a company works with.
Available on paid ChatGPT plans (Plus, Pro, Business, Enterprise) via developer mode — the Free plan doesn't include custom connectors.
- 1
Turn on developer mode: Settings → Security and login → Developer mode. Accept the ELEVATED RISK notice. If it is not there, search your settings for "Developer mode".
- 2
Open Plugins in the sidebar. Click + at the top right.
- 3
In the New Plugin dialog, set Name to APiM Galaxy. ChatGPT reuses this name on the sign-in screen. Set Connection to Server URL. Paste https://galaxy.apieceofmap.com/mcp including the https://. Leave Authentication on OAuth. Tick "I understand and want to continue" — Create stays greyed out until you do — then click Create.
- 4
Click Connect. Sign in once with Google or email.
- 5
In any chat, open +, pick APiM Galaxy, then ask. ChatGPT only runs the connector when you pick it — unlike Claude, it will not reach for it on its own.
One thing to remember: ChatGPT only runs the connector when you pick it from the + menu. Unlike Claude, it won't use it on its own — so if you want a source-checked answer, choose APiM Galaxy first.
Need help? Reply to any APiM Galaxy email, or browse the connector FAQ.