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What is FastAPI? What are the important Feature of FastAPI.

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


Fast API, works perfectly if your concern is speed. Netflix uses it for its internal crisis management. It also scales perfectly in deploying production-ready machine learning models because ML models work best in production when they are wrapped around a REST API and deployed in a microservice.


  • Fast: Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available.

  • Fast to code: Increase the speed to develop features by about 200% to 300% *.

  • Less bugs: Reduce about 40% of human (developer) induced errors. *

  • Intuitive: Great editor support. Completion everywhere. Less time debugging.

  • Easy: Designed to be easy to use and learn. Less time reading docs.

  • Short: Minimize code duplication. Multiple features from each parameter declaration. Less bugs.

  • Robust: Get production-ready code. With automatic interactive documentation.

  • Standards-based: Based on (and fully compatible with) the open standards for APIs: OpenAPI (previously known as Swagger) and JSON Schema.


  • Fast API validates the developer’s data type even in deeply nested JSON requests.

  • Fast API is built on standards like JSON Schema (a tool used for validating the structure of JSON data), OAuth 2.0 (it’s the industry-standard protocol for authorization), and OpenAPI (which is a publicly available application programming interface)

  • FastAPI makes it easy to build a GraphQL API with a Python library called graphene-python.


  • Because FastAPI is relatively new, the community is small compared to other frameworks, and regardless of its detailed documentation, there is very little external educational materials.

The Tech Platform



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