Creating an action that interfaces with API authenticated via AWS Signature Version 4

GPT builders
1

In my GPT, I’m trying to create an action that interfaces with an AWS API that is authenticated with AWS Signature Version 4. Basically, Amazon gives you an “Access Key” and a “Secret Key” to authenticate against the API.

In the Authentication box that pops up when I create an action in my GPT, I see radio buttons that let you choose among “None”, “API Key” and “OAuth” for Authentication Type. I select API Key assuming that this is the authentication type AWS API’s use. Then I’m presented with only one text area to enter an “API Key”, however I have two credentials that Amazon gave me, an Access Key and a Secret Key. Furthermore, there is are radio buttons below for Auth Type that give you the option to select among Basic, Bearer, and Custom. Which options should I select to authenticate against AWS API’s and where should I enter the Access Key and Secret Key AWS gives me?

Thank you,
Mete

2

Without the ability to generate dynamic AWS SigV4 signatures directly within the GPT builder, it’s not possible to create a fully functional custom action to interact with the Amazon Selling Partner API using just the access key and secret key. You would need additional backend infrastructure or a different approach to handle the authentication process.

1 Like
3

Thank you for the insight Nick. We are building an intermediary API that will sit between the Amazon APi and the GPT.