What plans are available?

Free (100 requests/month, no card), Starter at €19/month (1,000 requests), Pro at €49/month (10,000 requests), and Enterprise (custom limits, on request). Paid plans also include VAT-monitoring subscriptions and webhooks; the Free plan is validation-only. Starter and Pro can be billed monthly or annually — annual billing works out to a reduced monthly rate (Starter €16/mo, Pro €41/mo), billed as €192/year and €492/year respectively, with your quota still resetting every month.