# API Explorer

API Explorer is an interactive web application and an excellent way to try our endpoints without writing any code. You can use them to build, view, and send HTTP requests that call BoldSign APIs. API Explorer lets you test your requests using actual sandbox or production resources in your account, such as documents, templates, and user objects.

To play with API Explorer, all you need is a {% customlink href="https://account.boldsign.com/signup?planId=1076" text="developer sandbox account" /%}.

## How to use API explorer

To use the BoldSign API Explorer,

- Navigate to the {% customlink href="https://api.boldsign.com/swagger/index.html" text="US region API explorer" /%}, the {% customlink href="https://api-eu.boldsign.com/swagger/index.html" text="EU region API explorer" /%}, the {% customlink href="https://api-ca.boldsign.com/swagger/index.html" text="CA region API explorer" /%} or the {% customlink href="https://api-au.boldsign.com/swagger/index.html" text="AU region API explorer" /%}, depending on your preferred region.
- Click the `Authorize` button and provide the X-API-KEY (Retrieve the key by following this link {% customlink href="https://developers.boldsign.com/authentication/api-key/?region=us" text="Retrieve API key" /%} ), then click `Authorize.`
- Next, select any API. For instance, I have chosen the `List Document` API and clicked the `Try it out` button.
- Clicking on `Execute` will return the list of documents from your account.