Free
$0 /month
100 API units every month. No credit card required.
- 30 requests/minute
- Allowance refreshes every month
- All APIs included
- Upgrade any time — no lock-in
Clear usage. No feature maze.
Every account starts with 100 free API units each month — no credit card required. Paid plans add volume and higher rate limits.
Builder
$49/month
5,500 API units per monthly billing period.
- 60 requests/minute
- Unused allowance expires each billing period
- No top-ups or stored balance
- Renews monthly until canceled
- All APIs included
Growth
$199/month
24,000 API units per monthly billing period.
- 300 requests/minute
- Unused allowance expires each billing period
- No top-ups or stored balance
- Renews monthly until canceled
- All APIs included
Scale
$499/month
65,000 API units per monthly billing period.
- 1,000 requests/minute
- Unused allowance expires each billing period
- No top-ups or stored balance
- Renews monthly until canceled
- All APIs included
Plans renew automatically every month until canceled. Manage or cancel through the Paddle customer portal in your dashboard or the link in Paddle transaction emails. Paddle is the Merchant of Record; applicable taxes are calculated at checkout.
Operation prices
Know the price before every call.
The current price version is returned in response headers and never changes for an in-flight request.
1 API unit
VAT Check or IBAN Check
2–3 API units
Email Check: 2 · CPSC one-off match: 3
5 API units
One successful daily Knowledge Watch check