In order to start using API, you need an Agenty account.  Signup here, if you don’t have one.

Once you’re logged in, go to your "Setting" and then "API keys" page to get your API key token to start using the API.

We use keys to allow access and in order to authorize API requests. Just add your key token as query parameter to each API requests key=xxxxxxx

Alternatively, you can also add a header as X-Agenty-Key : {Your Key Here} on each requests to get authenticated.