Systems | Development | Analytics | API | Testing

14 Best API Mocking Tools In 2026 (Open Source And Paid)

Your frontend is ready, but the backend endpoint it depends on ships next sprint. Your QA team wants to test a payment flow, but the third party sandbox is down again. Your CI pipeline fails twice a week because a staging database returned different data. All three problems have the same fix: an API mocking tool. API mocking tools let you simulate an API, or any dependency your service talks to, so you can build and test without waiting on the real thing. The hard part is picking one.

Turn Real API Traffic Into Tests on Kubernetes | Keploy Demo

Test your whole backend without starting any of it. In this demo, Keploy records real API traffic from an order service running on Kubernetes and turns it into API tests and dependency mocks automatically: MySQL, HTTP and DNS calls included. Then it replays those tests against a digital twin of the backend, so nothing else needs to be running.

10 Best BDD Testing Tools In 2026 (Compared By Language)

For years, picking a BDD testing tool was a two-option decision: Cucumber if you wrote Java, JavaScript, or Ruby, and SpecFlow if you lived in.NET. That changed when SpecFlow reached end of life in December 2024, and newer stacks like Playwright and Go now have their own BDD options. This guide compares the 10 BDD testing tools worth considering in 2026. Every tool runs the same example scenario, so you can compare the code side by side, and each entry ends with who it suits and what it costs you.

API + AI Summit 2026 Recap: Helping the World Move AI

That's a wrap on API + AI Summit 2026, Kong's biggest in-person event yet. The event brought together more than 1,000 engineers, architects, and leaders in Los Angeles to discuss running AI systems in production, tackle shared architecture challenges, and swap real-world insights. Recordings from this year’s event will be available in the coming weeks..

How to Manage and Secure AI Coding Agents

AI coding tool spend is projected to top $13 billion in 2026, compounding at more than 60% a year. These agents don't just autocomplete a line of code anymore. They plan. They act. They call tools, run commands, and touch other systems on your behalf. This is pretty different from the assistant that used to live in your IDE sidebar. And that's exactly where the risk lives. An AI coding agent is software that writes, tests, and ships code independently. This level of autonomy earlier tools never had.

Spot flaky tests and failure trends with agentic QA | SmartBear BearQ

Wondering which of your AI-driven tests need attention right now? Watch this video to learn how SmartBear BearQ spots flaky tests and failure trends the moment they happen, so you always know exactly where to focus. Each report summarizes what happened and surfaces the issues BearQ detected, whether while exploring your app or running a scheduled test. Drill into failed tests to see exactly which runs broke and why, track trending results over time, and review open issues found across both passing and failing runs.

How to Use an On-Prem Database With Lovable

Connect Lovable to an on-prem SQL Server database without opening a single firewall port or handing over a database password. In this video I put DreamFactory in front of a SQL Server database on my local network, generate a REST API from it, lock that API down with a read-only role and a scoped API key, then have Lovable build a live delivery operations dashboard on top of it. Lovable calls the API from a server-side function, so the key never reaches the browser.

Connect AI Studio to On-Prem SQL Server (No Open Ports)

Connect Google AI Studio to an on-prem SQL Server database without opening a single firewall port or handing over a database password. In this video I put DreamFactory in front of a SQL Server database on my local network, generate a REST API from it, lock that API down with a read-only role and a scoped API key, then I have AI Studio build a live delivery operations dashboard on top of it. AI Studio calls the API from its own Node server, so the key never reaches the browser.

Connect Replit to On-Prem SQL Server

Connect Replit to an on-prem SQL Server database without opening a single firewall port or handing over a database password. In this video I put DreamFactory in front of a SQL Server database on my local network, generate a REST API from it, lock that API down with a read-only role and a scoped API key, then I have Replit build a live delivery operations dashboard on top of it. Replit calls the API from the app's backend, so the key never reaches the browser.