Documentation
Integrate VerifNow into your application in minutes.
Guides, API reference, code examples and SDKs — all in one place.
Quick start
- Get an API key and authenticate with the
X-API-KEYheader. - Send JSON payloads over HTTPS; responses include normalized data.
- Use the client dashboard to track validation statistics (usage, errors, latency).
API Reference
Browse the complete API documentation with all endpoints, parameters and response examples.
View API documentation →Java SDK (Spring)
Use our Java SDK to easily integrate VerifNow into your Spring Boot applications.
View API documentation →Code examples
Get started quickly with ready-to-use examples in your language of choice.
Advanced email validation
Boost conversions and protect your sender reputation with actionable deliverability signals.
Validation depth depends on the user's plan
The checks that actually run progress from BASIC to PREMIUM depending on the subscribed plan. Compare included signals to pick the right commercial and technical coverage.
Usage tracking in the client dashboard
Monitor validations over time, filter by endpoint, and quickly spot integration issues after deployments.
How it works
- Use your API key in your backend (never expose it in the browser).
- Send validation requests to VerifNow (email, phone, custom fields).
- Review usage, errors, and latency in your dashboard to keep control of quotas and reliability.
Examples
Performance & Reliability
99%+
Accuracy
Format checks, normalization, and risk signals designed to reduce false positives.
99.9%
Uptime
Built for production workloads with monitoring, alerts, and safe deploys.
< 50ms
Latency
Typical response time (p50) for most validations.
Metrics are indicative and can vary depending on endpoint, region, and input quality.