Authenticate your account when using the API by including your secret API key in the request.
Manage your API Keys here (https://app.holded.com/api) or going to Configuration (top bar) -> API. 😉
Your API keys carry many privileges, so be sure to keep them secret! 🤫 Do not share your API keys in publicly accessible areas such GitHub, client-side code, and so forth.
To use your API key, you need only call the api with your key in the header as follow:
Include your Api Key in the Header
All API requests must be made over HTTPS and Content-type as application/json.
Calls made over plain HTTP will fail. API requests without authentication will also fail. 😱