GraphQL.org provides information about GraphQL query language, documentation, tools, best practices, and community resources for developers aiming at building flexible APIs and data-driven applications. This is useful in browsing related resources online.
This site is the central source of information about GraphQL, which is a query language for APIs. It will be useful for developers who want to learn more about GraphQL specification, tutorials, documentation, and ecosystem.
Pricing information can be quite variable. graphql.org is not a checkout site with discount codes. It is a great site to learn something about GraphQL.
GraphQL specification and documentation can be learned for free. However, costs of using GraphQL will include hosting, development backend, API tools, training, and enterprise platforms based on GraphQL.
It is possible to start with the documentation and open-source solutions for small proof of concept and only then proceed to buying advanced tools. This is the way to make sure that you won't spend a lot of money on the platform you don't need yet.
Most of the time, yes. Many companies provide various paid solutions for schema management, API gateways, monitoring, security, and collaboration between the teams. Prices can be very different, so you should compare pricing information, features, and usage limitations.
In many cases, yes, it is. This site is a great place to start learning GraphQL, since you will learn about basics and get access to learning materials. However, you may need to study additional tutorials in the programming language you use.
Scalability, authentication, monitoring, caching, schema workflow, support and integration with your stack can be very important. The service that seems affordable initially can turn out to be quite expensive due to heavy usage-based pricing.