Patent attributes
An API monitoring and validation tool that may be provided as part of a web-based application testing and deployment environment. The environment may enable developers to develop web-based applications, validate and test APIs used by the applications and deploy the applications. The API monitoring and validation tool may perform validation of a service endpoint used by an application. As part of the validation, a user may provide information regarding the form and content of a successful response to a call to the service endpoint is. The monitoring may measure performance metrics and obtain information regarding the causes of errors and failures. The monitoring can identify errors and failures that occur during API call chains to service endpoints.