+44 20 3807 2854
Backend

FastAPI

Python APIs with explicit request and response contracts.

FastAPI logo
FastAPI

FastAPI supports typed API development. We define validation, authentication, and error responses so connected applications have a predictable interface.

Useful for Python integration services where explicit request validation and clear API contracts are central to the work.

Planning your implementation

A technology choice is a delivery decision.

We plan the work needed to build, operate and improve the application, not just the first set of features.

  1. 01

    Review the requirements

    We define authentication, request and response structures, background processing needs, and behaviour when a dependency fails.

  2. 02

    Validate the important assumptions

    Use a focused prototype or a representative workflow where a technical uncertainty could affect scope. Agree the acceptance checks before building the full solution.

  3. 03

    Plan the handover

    API documentation, example requests, deployment settings, and monitoring and error-handling guidance.

Why FastAPI

Why we use FastAPI.

Where FastAPI adds the most value in the projects we deliver.

01

High performance

One of the fastest Python frameworks for APIs.

02

Automatic documentation

Interactive API docs are generated from the code.

03

Type-safe

Data validation is built in, reducing errors.

04

Ideal for AI services

Well suited to serving models and AI features.

Questions

Common questions.

Quick answers to what people often ask us about FastAPI.

When do you use FastAPI instead of Django?

FastAPI suits focused, high-performance APIs and AI services. Django suits full web applications with admin and templates.

Is FastAPI production-ready?

Yes. It is widely used in production for APIs and AI services.

Let’s talk

Planning a project with FastAPI?

Tell us what you want to achieve and the right team will get back to you with practical next steps.