Check remaining verification allowance

Returns whether this account can check an address right now and what would pay for it — the plan allowance left this month and today, any monthly add-on allowance (addon_monthly_allowance / addon_remaining — not paced daily), the purchased credit balance, free checks left today, and the largest run accepted. Read this before submitting so you never discover a limit by being refused.

Required scope: verification:read.

can_verify_now is the field to branch on: true means a check would be admitted this instant, whatever is funding it.

access_source says what would pay for it — plan (monthly allowance), credits (purchased, no subscription needed), free_daily (the one free check per day), or none.

verifiable_now counts plan allowance plus credit headroom ONLY. It reads 0 for an account running on its free daily check, so do not read it as "no access" — check can_verify_now and free_checks_remaining_today first.

Purchased credits never expire, need no subscription, and are only ever spent on a confirmed result.