oyyi
API for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generation
PHP Composer package versions and dist metadata.
Packagist API is a free Development API that requires no API key, is served over HTTPS and does not support CORS, so it should be called from a server.
The PHP Package Repository
Details from packagist.org.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
The Packagist API is provided by Packagist.org (packagist.org). The PHP Package Repository
Yes. The Packagist API is listed in the Development 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 Packagist API requires no authentication, so you can start making requests without signing up.
Not directly. The Packagist API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Yes. The Packagist API is served over HTTPS, so it's safe to use in production.