API docs for Typeform are located here https://www.typeform.com/help/data-api/

Requests can only be made to domains associated by this application.

These params will be URL-encoded and appended to the URL when making the request.

Authentication headers are included automatically

Zapier will apply these optional headers and values to the request in addition to any headers created as part of the authentication mechanism.

Zapier will pass this along raw. If you would like to provide complex JSON, try a "Code by Zapier" step to build the structure and pass it along here. For example, {"foo": "bar"} is perfectly valid.

Limit request to responses submitted since the specified date and time. Could be passed as int (timestamp in seconds) or in ISO 8601 format, UTC time, to the second, with T as a delimiter between the date and time

Limit request to responses submitted until the specified date and time. Could be passed as int (timestamp in seconds) or in ISO 8601 format, UTC time, to the second, with T as a delimiter between the date and time. NOTE: until must be after since if both parameters are specified