FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.




Mercurius is described as 'Implement GraphQL servers and gateways with Fastify' and is an app in the development category. There are more than 10 alternatives to Mercurius for a variety of platforms, including Self-Hosted, Mac, Windows, Linux and Web-based apps. The best Mercurius alternative is FastAPI, which is both free and Open Source. Other great apps like Mercurius are LoopBack.io, OData, GraphQL and PostgREST.
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.




A highly extensible Node.js and TypeScript framework for building APIs and microservices.

An open protocol to allow the creation and consumption of queryable and interoperable RESTful APIs in a simple and standard way.

GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data. GraphQL provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need and nothing more, makes it...

Django REST framework is a powerful and flexible toolkit for building Web APIs.

GraphQL Mesh allows you to use GraphQL query language to access data in remote APIs that don't run GraphQL (and also ones that do run GraphQL). It can be used as a gateway to other services or run as a local GraphQL schema that aggregates data from remote APIs.




Hasura makes data access easy, by instantly composing a GraphQL API that is backed by databases and services so that the developer team (or API consumers) get immediately productive. The nature of GraphQL itself and Hasura’s dynamic approach makes integration and iteration easy.