API Testing with AI Agents: From Postman to Code

Learn API testing with AI agents: take a Postman collection off your laptop, run it in the cloud, and have Claude Code convert it into Java tests. API testing with AI agents means an AI agent moves your API tests into CI, turns them into code, and fixes them when they break. 📢 HyperExecute by TestMu AI (formerly LambdaTest) is an AI-native test orchestration cloud that runs test suites up to 70% faster than traditional grids. 🔹 Export a Postman collection for CI/CD and run it with Newman on HyperExecute 🔹 Claude Code writes the HyperExecute YAML: Auto-Split, concurrency, test discovery 🔹 Every Postman folder runs on its own machine: 37/37 checks passed in 28 seconds 🔹 Claude Code converts the collection to REST Assured + TestNG Java tests 🔹 A real run catches a 418 error; Claude Code finds the cause and fixes it in one line 🔹 Postman vs code: which to keep, plus 4 tips for running API tests at scale 👉 Create your TestMu AI account: [SIGNUP LINK] 📂 Repo + both YAML files: [REPO LINK] 📘 HyperExecute docs: [DOCS LINK] ⏱️ Chapters 00:00 API Testing with AI Agents: What You'll Build 00:36 What Is HyperExecute? AI-Native Test Orchestration 01:58 Prerequisites: TestMu AI, HyperExecute CLI, Claude Code 02:20 Step 1: The Postman Collection (restful-booker) 03:37 Export a Postman Collection for CI/CD 04:00 Step 2: Generate HyperExecute YAML with Claude Code 05:06 HyperExecute YAML Explained: Auto-Split & Concurrency 06:02 Step 3: Run Postman Tests in the Cloud with Newman 06:23 HyperExecute Dashboard Walkthrough 07:27 Results: 37/37 Checks Passed in 28 Seconds 08:12 Step 4: Convert Postman to Java (REST Assured + TestNG) 09:58 Step 5: Run Java API Tests on HyperExecute 010:12 Debugging a 418 Error with Claude Code 11:29 Fix Verified: 17/17 Tests Passing 11:49 Postman vs Code: Which One Should You Keep? 12:41 4 Tips for Running API Tests at Scale 14:06 Recap #APITesting #ClaudeCode #Postman #RESTAssured #TestAutomation