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API Usability Testing

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API Testing Kit

We created this page to give you the tools to create a better API User Experience. We took the format we’ve used to evaluate more than a dozen gov APIs and laid it out for you to copy (or fork, as it were). The kit provides a structured way to collect feedback from real or representative customers, and tools to collect this data and act on it.

The format is simple:

  1. Invite developers to look at your API
  2. Listen to them critique it and perhaps try to use it
  3. Ask them questions
  4. Fix key issues
  5. Repeat


  • Guide
  • Schedule
  • Email Templates
  • Agency API Guidelines
  • Handout
  • Survey

  • A Collaboration of 18F and DigitalGov UX Program.