API Call Investigator is a Chrome extension developed by alireza_kasaaian. It is a free tool designed for API users to easily identify and resolve issues when making API calls from their web applications. With this extension, users can save time and avoid the hassle of navigating through multiple tabs and tools to troubleshoot API call failures.

By installing API Call Investigator, users can conveniently monitor their API calls without leaving their browser. They can simply add the API documentation in the extension's settings tab and keep an eye on the extension icon. If an API call to the server fails, a badge will appear on the icon, indicating that there is an issue. By clicking on the badge, users can quickly access detailed information about what went wrong and find possible solutions.

The latest update (versionbrings added support for all types of query parameters, except for object types. Additionally, the extension has resolved the issue of not resolving domains by making changes in permissions.

API Call Investigator is a valuable tool for developers who frequently work with APIs. It simplifies the process of identifying and resolving API call issues, allowing users to streamline their workflow and improve productivity.