FastAPI development

APIs that are clear to use. And ready to operate.

FastAPI development for product backends, integrations and AI services. Define the contract, connect the systems, and make failures understandable before more users depend on the API.

FastAPI request validation and structured API response
In the toolkit
  • FastAPI
  • Pydantic
  • PostgreSQL
  • ASGI deployment

Choose with context

The right tool starts
with the right problem.

Where FastAPI fits

Useful for API-first services, typed request validation and workloads that spend time waiting on databases or external APIs.

Worth considering

Async code does not make CPU-intensive work disappear. Long processing and model inference may need separate workers, queues or dedicated infrastructure.

What we can build

Connect your product without creating a black box.

Explore API development
API contractIllustrative workflow

A request with a predictable response

POST /shipments

  1. 1
    Validate

    Address and reference required

  2. 2
    Authorize

    Account can create shipments

  3. 3
    Dispatch

    Return a job ID for tracking

202 · Accepted for processing
The caller can follow progress without holding a connection open.
01

Product APIs

Create endpoints that frontend and partner teams can work against, with explicit schemas and a consistent error model.

What you getOpenAPI documentation, contract tests and versioning rules.

02

AI service endpoints

Wrap model calls in authentication, timeouts and output validation. Stream responses where that improves the user experience.

What you getA product-facing boundary with usage tracking and fallback behavior.

03

System integrations

Receive webhooks, coordinate third-party calls and separate immediate acknowledgements from longer work.

What you getVerified webhooks, duplicate protection and recoverable jobs.

An example architecture

Keep slow dependencies out of the fast path.

Set timeouts at dependency boundaries, limit concurrency, and distinguish errors callers can retry from errors they need to correct.

  1. 01

    Validate request

  2. 02

    Apply access rules

  3. 03

    Call service or queue

  4. 04

    Return a stable contract

Adapted to your systems, data and operating requirements during discovery.

From first scope to handover

Agree on what “ready” means.

We define the first useful release and its acceptance criteria together. Working software, deployment instructions and the decisions behind it stay with your team.

  • Malformed requests have useful errors
  • Timeouts and retries are tested
  • Authorization is checked beyond the route level

Before you decide

A few useful answers.

Technical reference: FastAPI concurrency guide
FastAPI or Django?

FastAPI is well suited to a focused API boundary. Django offers a broader foundation when the product also needs administration, an ORM and many business workflows. The surrounding product matters more than benchmark headlines.

Will async make our API faster?

It can improve concurrency for suitable I/O-bound work. Database queries, blocking libraries and CPU-bound processing still need individual attention and measurement.

Let’s work out what
your product needs next.

A new build, an existing codebase or one stubborn problem. Bring the context you have.

Start a project

A little closer, wherever you are

Big world.
Close partnership.

Product engineering, AI and Odoo ERP, with a shared plan and a working rhythm built around your team.

Offices in India, Spain & France.
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Our offices Customer presence

Different time zones. One shared conversation.

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