When best to go for API Automation

Good Candidates for Automation

• The API is stable and unlikely to change frequently.
• The same endpoints will be tested repeatedly across builds (regression).
• The team needs fast feedback in a CI/CD pipeline.
• There is a large number of input/output combinations that would be tedious to test manually.

When to Hold Off

Very early-stage, rapidly changing APIs are often better tested manually first, since automation scripts would need constant rework as the API design settles.