---
title: "Contract tests for an external API"
description: "How can you detect an incompatible external API change with a contract test?"
status: "coming-soon"
language: "en"
canonical: "https://bulnik.dev/en/articles/topics/T47.03/"
topicId: "T47.03"
---

> Coming soon — this article is being prepared. Below are its question, intended outcome, and place in the story.

## The question

How can you detect an incompatible external API change with a contract test?

## What we will work through

Detect an incompatible external API change with a contract test.

## Before you begin

Previously covered: OpenAPI and contract validation.

- [OpenAPI and contract validation](/en/articles/topics/T38.03/)