### CTM API Authentication with Basic Auth

Source: https://postman.calltrackingmetrics.com/index

Demonstrates how to authenticate with the CallTrackingMetrics API using Basic Authentication. This involves constructing an Authorization header with a base64 encoded string of your access key and secret key.

```HTTP
GET /api/v1/accounts.json HTTP/1.1
Host: api.calltrackingmetrics.com
Authorization: Basic ABC123....
```

--------------------------------

### CTM API Request Content Types

Source: https://postman.calltrackingmetrics.com/index

Specifies the allowed content types for requests to the CallTrackingMetrics API. It's crucial that the request body matches the specified Content-Type header.

```JSON
{
  "phone_number": "+18085551212"
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.