Selenium automates browsers. That's it! What you do with that power is entirely up to you.

Puppeteer is a Node.js library which provides a high-level API to control Chrome/Chromium over the DevTools Protocol.

Automate API workflows. Chain HTTP requests. Validate. Zero code.

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.

REST API client library for .NET

a scalable synthetic data generation platform focused on automated data creation for complex test scenarios.