In this case, the tool creates test credentials to simplify the process. But when this is  promoted to another tiers, the App Developers are required to obtain their own API Keys.  Chapter 6. Practical agile integration  269 6. After a moment the result of the API invocation is returned, where you can see the status  code and the body of the response message. In this case we can see a successful  invocation (200) as well as the response message we defined in the gatewayscript code.  See Figure 6-150. 5. After you have entered all the information you can invoke the API, and you have the  opportunity to repeat the invocation multiple times if needed. See Figure 6-149 on  page 269. 4. When you continue scrolling down, you will be able to enter the parameters required to  invoke the API. The tool allows you to generate test data. If you prefer, you can type or  copy and paste some sample test data, you might have already available. See  Figure 6-148. Figure 6-148 API testing -4 Figure 6-149 API testing -5