As of v0.5 (currently on the development branch but you can pull and use it right away) you can use post_internal
for adding data:
Intended for internal post calls, this method is not rate limited,
authentication is not checked and pre-request events are not raised.
Adds one or more documents to a resource. Each document is validated
against the domain schema. If validation passes the document is inserted
and ID_FIELD, LAST_UPDATED and DATE_CREATED along with a link to the
document are returned. If validation fails, a list of validation issues
is returned.
It would probably make sense to add more internal methods to cover all CRUD operation which are now available via HTTP. You can still invoke them right away, though.
Update: v0.5 has been released with _internal
methods available for all CRUD operations.