Courses, lecture videos, detailed information for courses etc. for the University of Oslo (Norway).
University of Oslo API is a free Open Data API that requires no API key, is served over HTTPS and has unconfirmed CORS support.

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Official social media handles and identifiers of 155,000+ notable people and organisations
Yes. The University of Oslo API is listed in the Open Data category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The University of Oslo API requires no authentication, so you can start making requests without signing up.
CORS support for the University of Oslo API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The University of Oslo API is served over HTTPS, so it's safe to use in production.