UIN Services API
Texas A&M University System enterprise API to search, verify, create and update Universal Identification Numbers. Gated: access requires registering an application, subscribing to UIN Proxy Services v3 in the System API Catalog, and approval by the System Enterprise Applications DevOps group, with x-api-key authentication. The documentation page and the developer portal both return 200, but every unauthenticated portal discovery route tried returned 404, so no base URL and no specification is published. Inventoried from Texas A&M's own documentation and never described here as callable.