Openverse auth API

Openverse provides free and open access to the Openverse API toanonymous and registered users. [Refer to the API documentationsite for information on how to register](https://api.openverse.org/v1/#tag/auth).All Openverse API users are subject to rate limits and restrictionson how much of Openverse's dataset can be accessed through the API.[Individuals should contact Openverse to request expanded access tothe API](https://github.com/WordPress/openverse#keep-in-touch).Requests are considered on a case-by-case basis and are subject toevaluation in light of [Openverse's Terms of Service](https://docs.openverse.org/terms_of_service.html).Escalated access may be revoked at any time.To authenticate yourself, you must sign up for an API key usingthe `register` endpoint and then get an access token using the`token` endpoint. Read on to know about these endpoints.In subsequent requests, include your access token as a bearertoken in the `Authorization` header.```Authorization: Bearer ```### Rate limitsOpenverse endpoints are rate limited. Anonymous requests should besufficient for most users. Indeed, https://openverse.org itselfoperates using anonymous requests from the browser.Registered users are automatically granted slightly higher limits.Further increases to rate limits are available upon request (see above).Every Openverse API response that was subject to rate-limits includesheaders outlining the permitted and available usage. Exceeding the limitwill result in '429: Too Many Requests' responses.### PaginationOpenverse's dataset is valuable, and the[Terms of Service](https://docs.openverse.org/terms_of_service.html)disallow scraping under all circumstances. As such, paginationfor anonymous users is limited, accommodating only the typicalusage on https://openverse.org. Pagination is limited in termsof the size of individual pages and the total number of worksvisible for a query (pagination depth).Authenticated users are subject to the same limit of total worksavailable for a query, but may request larger individual pages.Increases to pagination limits on page size and total depth areavailable upon request (see above).