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Postman

API Testing · Beginner

Build and test HTTP/API requests with collections and environments.

Knowledge reference only. Prefer in-browser Labs first. Use this tool only on systems you own or have written authorization to test.

What to learn

  • Collections
  • Environment variables
  • Pre-request scripts

Legitimate use

Use only on APIs you are authorized to test.

Official docs →

Example commands (lab VMs only)

  • GET {{baseUrl}}/health
    Smoke-test an API you own