What automation tools for testing or working with APIs do you use in your practice?

In practice of test automation and working with APIs, the following tools are often used:

• Postman — a convenient tool for manual and automated API testing, supports creating request collections and writing tests in JavaScript.
• RestAssured — a Java library for automating REST API testing, allows writing tests with response verification.
• Selenium WebDriver — for automating UI testing of web applications, often used with programming languages.
• JMeter — for load testing APIs and web services.
• Pytest + requests — in Python, for writing automated API tests using the requests library for sending HTTP requests.

Example of a simple API test in Python using requests and pytest:

import requests

def test_get_user():
    response = requests.get('https://jsonplaceholder.typicode.com/users/1')
    assert response.status_code == 200
    data = response.json()
    assert data['id'] == 1

The choice of tool depends on the task, language, and project requirements.