Authentication

Available authentication method - API key.

You need to provide X-API-KEY header with every request.

Curl example:

curl --request GET \
  --url 'https://api.omnisend.com/v3/contacts' \
  --header 'X-API-KEY: AjWvksZpTG4JZBdc4'

To get your API key go to https://app.omnisend.com/integrations/api-keys