The OpenAIRE Graph APIs can be accessed through authenticated and non-authenticated requests. We suggest making authenticated request as the request limit per hour is significantly higher, you can refer to the documentation page here to see the updated request limits.
There are two main modes that you can use to authenticate API requests:
- Personal access tokens, which are intended for individuals
- Registered services, which are appropriate for production-ready services to consume data from the Graph
You can find more details on how to register to the OpenAIRE Graph APIs for both modes here.
To make a non-authenticated request, nothing else is needed apart from knowing the API endpoint that is appropriate for the request you have in mind. Find out more here.