Troubleshooting Gamma API 400 Bad Request in Postman

·Sep 29, 2025 05:33 PM·

Hello everyone, a quick question, I tried Gamma API with postman but I received only code error 400 Bad Request I tried directly within the website and it worked properly. Has anyone tried with postman? if Yes do you have a collection to share ?

2 comments

· Sorted by Oldest

Max J.
·
·
Hey Lounes! We do not have an official Postman collection available yet but I have gone ahead created some for you to use:
1.
Import into Postman:
Open Postman
Click Import → Upload Files
Select both JSON files
Click Import
2.
Set up your API key:
Select "Gamma API - Production" environment (top right)
Click the eye icon
Replace sk-gamma-YOUR_API_KEY_HERE with your actual key
Save
You're now ready to test the Gamma API! Start with the "Test Authentication" request to verify everything is working correctly. Remember you'll need a valid API Key which comes with a Pro Account or Higher
Lounes L.
·
·
it works properly. thanks a lot ! I don't know what I did wrong 🧐

Max J.
·
·
Hey Lounes! We do not have an official Postman collection available yet but I have gone ahead created some for you to use:
1.
Import into Postman:
Open Postman
Click Import → Upload Files
Select both JSON files
Click Import
2.
Set up your API key:
Select "Gamma API - Production" environment (top right)
Click the eye icon
Replace sk-gamma-YOUR_API_KEY_HERE with your actual key
Save
You're now ready to test the Gamma API! Start with the "Test Authentication" request to verify everything is working correctly. Remember you'll need a valid API Key which comes with a Pro Account or Higher
Lounes L.
·
·
it works properly. thanks a lot ! I don't know what I did wrong 🧐