Billed per service events. One call records or checks one service event; the intervals come from the EPA page quoted on every result.
Start free. 3 service events/day with no signup, then 20 service events/month with a free key (no card). Paid plans are for when a free key stops being enough.
3 service events per day, no key, no signup. Good for trying it.
20 service events per month. Get a key with just an email address. No card.
500 service events per month, same endpoints, key auth. Start now — card checkout, cancel any time.
5000 service events per month, same endpoints, key auth. Start now — card checkout, cancel any time.
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