ZeroKit API

Reliable server-side developer tools via REST API. DNS, SSL, WHOIS, Headers, Redirects, Status, Email Validation, and Tech Detection — all in one place.

Free

$0 / forever
No credit card required
  • ✓ 30 requests / minute
  • ✓ All 8 endpoints
  • ✓ No API key needed
  • ✓ CORS enabled
  • ✓ JSON responses
  • ✓ Community support
Get Started

Starter

$9 / month
For side projects & MVPs
  • ✓ 1,000 requests / day
  • ✓ All 8 endpoints
  • ✓ Personal API key
  • ✓ CORS enabled
  • ✓ Priority email support
  • ✓ Usage dashboard
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Popular

Pro

$29 / month
For growing products
  • ✓ 10,000 requests / day
  • ✓ All 8 endpoints
  • ✓ Personal API key
  • ✓ Bulk endpoints
  • ✓ Priority email support
  • ✓ Usage dashboard
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Enterprise

$99 / month
For teams & high-volume use
  • ✓ Unlimited requests
  • ✓ All 8 endpoints
  • ✓ Personal API key
  • ✓ Bulk endpoints
  • ✓ Dedicated support & SLA
  • ✓ Custom integrations
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Already using our free API?

Check out the full documentation for all 8 endpoints, request examples, and response schemas.

View API Documentation →

Frequently Asked Questions

Email us at support@veloiq.de with your chosen plan. We will set up your account and send you a personal API key within one business day. The free tier does not require an API key — you can start using the API immediately.
All plans include all 8 server-side endpoints: DNS Lookup, SSL Checker, HTTP Headers, WHOIS Lookup, Redirect Checker, Website Status, Email Validation, and Tech Detection. See the API Documentation for full details on each endpoint.
If you hit your plan's rate limit, the API will return a 429 Too Many Requests response. You can upgrade to a higher plan at any time. If you have temporary spikes, contact us and we can discuss a custom arrangement.
Contact us at support@veloiq.de to get started. We will send you an invoice. Payment integration for self-service checkout is coming soon.