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

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Requests

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

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Validate Authentication

Quickly validate the appId and appKey you are using.

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Getting Started

Return to the consolidated API Reference entry point.