improved

Envelope credits are now included in the Fetch User response

Fetch user now includes details about the envelope credits available in your developer account.

{
    "...": "..."
    "envelope_credits_available": 1760,
    "envelope_credits_consumed": 40,
    "grace_envelope_credits_available": 180,
    "grace_envelope_credits_consumed": 0,
    "...": "..."
}