For Product & Engineering Teams

Stop Fake Signups.
Improve User Quality

Real-time email verification at signup prevents temporary emails and fake accounts.
Reduce support costs. Improve conversion quality. Ship in 5 minutes.

<500ms API latency
Typed TypeScript SDK
Webhook notifications

Trusted by product teams at fast-growing startups

<500ms latency
99.9% uptime
1K free checks

The Cost of Fake Signups

Temporary emails and disposable accounts waste engineering time, distort metrics, and increase support costs.

Fake Account Pollution

Users create throwaway accounts with temporary emails to abuse free trials, grab promotions, or spam your platform.

15-20% fake signups

Support Ticket Waste

Temporary emails can't receive password resets or notifications, generating unnecessary support tickets from real users.

30% of support tickets

Misleading Metrics

Inflated signup numbers from fake accounts make it impossible to calculate real conversion rates and user engagement.

Skewed analytics

Integrate in Minutes, Not Days

Choose your integration method: client-side, server-side, or webhook-based

Client-Side Validation
// Client-side validation (React)
import { useEmailValidation } from '@antitemp/react'

function SignupForm() {
  const { validate, loading, result } = useEmailValidation()

  const handleSubmit = async (email) => {
    const validation = await validate(email)

    if (validation.risk_score > 70) {
      setError('Please use a permanent email address')
      return
    }

    // Proceed with signup
    submitSignup(email)
  }

  return <input onChange={(e) => validate(e.target.value)} />
}

Client-Side Validation

Validate emails as users type with React/Vue hooks. Instant feedback without page refresh.

<500ms response time
TypeScript support
Loading states built-in

Built for Production Workloads

Low-latency API with observability, typed responses, and webhook support

<500ms API Latency

P95 response time under 500ms. Fast enough for real-time signup validation without blocking user experience.

Typed Response Envelopes

Standardized success/data/meta format with TypeScript types. No surprises, just clean API responses.

Webhook Notifications

Get notified when batch processing completes, risk scores update, or appeals are resolved.

Built-in Observability

Request IDs, credit usage, and rate limit info in every response. Debug integration issues instantly.

Clean, Typed API Responses

Every response follows the same envelope structure with observability built-in

POST /v1/email/check
{
  "success": true,
  "data": {
    "email": "user@tempmail.com",
    "risk_score": 85,
    "signals": {
      "temp_domain": { "triggered": true, "confidence": "HIGH" },
      "new_registration": { "triggered": true, "confidence": "MED" }
    },
    "explanation": "Domain is known temporary email provider"
  },
  "meta": {
    "request_id": "req_abc123",
    "credits_used": 1,
    "rate_limit_remaining": 999
  }
}
Ship in 5 minutes

Ready to Stop Fake Signups?

Join product teams using AntiTemp to improve user quality and reduce support costs.

1,000 free email checks
No credit card required
<500ms latency
<500ms
P95 latency
99.9%
API uptime
95%+
Detection accuracy