You can use the Placid URL API without authentication.
If you prefer to add an extra layer of security, however, you can use signed URLs containing authentication information in the query string.
Placid API tokens are project-specific. For every API project you create, you'll get a unique token.
Projects
overviewAPI Tokens
in the left menuThe signature of a signed URL is created using your private API token and the query string of your URL.
&s={SIGNATURE}
to your image URLs (it needs to be the last parameter in your URL)https://api.placid.app/u/{template_uuid}?{layer-name}[{property}]={value}&s={signature}
<?PHP
// - This example is in PHP, but can be done using any programming language
// - contact our support if you need help
// - your private API Token
$api_token_private = "<your token>";
// - your full query string
$query_string = "&author[text]=asdf";
// - create the signature using your API token and query_string
$signature = hash_hmac('sha256', $query_string, $api_token_private);
// - append the signature to your URL
$signed_image_url = "https://api.placid.app/u/zqipxhxog/" . $query_string . "&s=" . $signature;
{info} Make sure to hash the query string without your
&s={SIGNATURE}
parameter.