Data generator API. Profiles, vehicles, banks and cards, etc.
GeneradorDNI API is a free Test Data API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
API de datos de prueba con reglas fijas (DNI, IBAN, perfiles): frente a un LLM, salida que pasa validación, reproducible, OpenAPI. Gratis con límite diario; planes Pro y Business.
Details from api.generadordni.es.

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The GeneradorDNI API is provided by Generador DNI API (api.generadordni.es). API de datos de prueba con reglas fijas (DNI, IBAN, perfiles): frente a un LLM, salida que pasa validación, reproducible, OpenAPI. Gratis con límite diario; planes Pro y Business.
Yes. The GeneradorDNI API is listed in the Test 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.
Yes. The GeneradorDNI API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the GeneradorDNI API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The GeneradorDNI API is served over HTTPS, so it's safe to use in production.