Is your feature request related to a problem? Please describe.
Correct me if I'm wrong, but LinkML seems to be an appropriate schema for data providers to guide GET requests which fields to fetch. When someone wants to utilize already existing data, there are still cases when the data provider agrees but can't/doesn't want to send POST requests to the former (e.g. SQL or if it's a manually-updated Excel).

Describe the solution you'd like
In these cases the utilizers could make the GET requests, based on data providers' LinkML / SSSOM field schema. This repo is the closest I've found, or maybe you already support this - in the latter case please just clarify how.

How important is this feature? Select from the options below:
• Medium - can do work without it, but it's important (e.g. to save time or for convenience)

When will use cases depending on this become relevant? Select from the options below:
• Short-term - 2-4 weeks

Additional context
Do you have a recommended method to exchange further parameters of the successful GET request? Like should OpenAPI JSON with URL and some prefilled values be part of LinkML?