Authenticate Arcadia Signal API requests with HTTP Basic authentication using your appId and appKey.

Basic authentication

Signal API requests use HTTP Basic authentication.

Use your credentials as follows:

Credential	Basic Auth role
`appId`	Username
`appKey`	Password

Most HTTP clients can send Basic Auth credentials directly. If your client requires a header, construct an Authorization: Basic header from the Base64-encoded appId:appKey pair.

Validate credentials

Use the Echo Authenticate endpoint to validate that your appId and appKey are valid before calling more complex endpoints.

GET /rest/echo/authenticate

Related pages

Requests

Review request URL patterns, HTTP methods, pagination, searching, and sorting.

Validate Authentication

Quickly validate the appId and appKey you are using.

Getting Started

Return to the consolidated API Reference entry point.