[Enhancement]: Allow multiple keys in header for Agent Tools

[philippsandhaus]

What features would you like to see added?

Currently only one header field is possible for authentication in agent tools. This might not be enough for some APIs, specifically for the Deutsche Bahn API.

More details

I am trying to integrate the Deutschs Bahn API on https://developers.deutschebahn.com/db-api-marketplace/apis/product into librechat. Specifications are available in OpenAPI format, but the API requires two custom Headers for authentication instead of only one API-Key. These are DB-Api-Key and DB-Api-Client I can however only add one filed via the UI.

Which components are impacted by your request?

UI

Pictures

Code of Conduct

• I agree to follow this project's Code of Conduct