usage-based · no seats · transparent caps

Simple pricing for the API

Every tier includes the same email verification surface: one stable schema, five validation layers, OpenAPI-first docs, and EU-hosted processing. You pay for included verifications per month; paid tiers add metered overage when you exceed the cap.

start here

Zero

€0/mo

no card required

500 verifications included per calendar month

What you get

  • Full POST /v1/email/verify access with the unified response schema
  • OpenAPI 3.1 spec at /openapi.json for agents and codegen
  • Five layers: syntax → disposable → MX → SMTP → signals, with early exits
  • Typo suggestions, role/disposable flags, calibrated confidence scores
  • EU-hosted infrastructure; processing aligned with GDPR expectations
  • Dashboard for API keys and usage visibility
  • 10 requests/minute per API key (sliding 60s window); exceeding returns 429 rate_limit_exceeded
  • At the monthly cap, requests are blocked until the next period unless you upgrade
$ get free api key
popular

Builder

€9/mo

billed via Stripe · cancel anytime

5,000 verifications included per month · overage €0.002 per call

Everything in Zero, plus

  • Higher monthly included volume for production traffic and staging
  • Metered overage beyond 5k at €0.002 per verification (same API, no separate “overage SKU” to wire up)
  • Checkout and subscription management from the dashboard
  • Same latency targets and API surface as Zero and Scale
  • 100 requests/minute per API key (sliding 60s window)
  • Email receipts and plan changes through Stripe
$ subscribe in dashboard
volume

Scale

€49/mo

billed via Stripe · cancel anytime

100,000 verifications included per month · overage €0.0012 per call

Everything in Builder, plus

  • Large included pool for high-traffic products and batch jobs
  • Lower per-call overage (€0.0012) once you move past the included 100k
  • Same dashboard, keys, and observability—tier is a capacity and price band, not a different product
  • Designed for sustained volume while keeping schema and integration stable
  • 1,000 requests/minute per API key (sliding 60s window)
$ subscribe in dashboard
// compare at a glance
Zero Builder Scale
Monthly price €0 €9 €49
Included verifications 500 / mo 5,000 / mo 100,000 / mo
Rate limit (per API key) 10 / min 100 / min 1,000 / min
Overage (per verification) — €0.002 €0.0012
Billing Free Stripe subscription Stripe subscription
API & schema Same endpoint and response schema on all tiers

“Verification” means a successful request to POST /v1/email/verify that we accept and process. Monthly included caps reset each billing or calendar period as described in the dashboard. Per-key rate limits use a sliding window over 60 seconds (shown as requests per minute). Prices shown exclude applicable taxes.