API Testing, known as Application Program Interface Testing, is to validate the interface between the requester and the responser, foucsing in validating the responses based on the requests sent, information, message, structure of the message, status code among other validations.
You can do Manual, Performance, Automation and Security validation for your APIs, all these through the use of API's Tools or with Automation Test Frameworks.
API Testing Process
Artifacts for API Testing
API Test Tools
Common Roles for API Test
When do we need to start doing API Testing?
API Testing Rates
What would it be our inputs for API Testing?
API Test Suppliers Onsite, Nearshore, Offshore.
API Test Resources looking for Opportunities
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API Tester Open Positions