How to Practice API Testing Using a Public Rick and Morty Mock API

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A software QA practitioner shares a hands-on guide to learning API testing with Postman, using a free mock REST API available at funapi.dev. The platform offers 37 mock APIs, including a Rick and Morty-themed one, requiring no signup, API keys, or rate-limit concerns. The walkthrough covers nine endpoints across characters, locations, and episodes, deliberately including authenticated routes to simulate real-world 401 errors and write-path testing. Learners are guided to set up Postman collection variables, send requests, and write assertions against predictable, small datasets. The approach addresses a common beginner frustration: unstable staging environments that make it hard to distinguish personal errors from infrastructure issues.

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