Sign up for our public-beta program and redeem upwards of $1.000 USD in Zalter credits for your first year!


Only pay for what you use, no surprises.

Zalter is free to get started and scales with you as you grow.

Pay as you go

Free 1,000 authentications

Free 20,000 public-key retrievals

Email Passcode authentication

Email Magic Link authentication

$0.05 per 100 authentications

$0.01 per 1,000 public-key retrievals

2 projects



Everything from Developer

Multi-Factor Authentication (MFA)

SMS Passcode authentication (via Twilio)

Priority support

Unlimited projects

Custom email template

Custom email provider (SMTP or AWS-SES)

Volume discounts

Know what you'll pay

Secure your customers’ accounts today with Zalter

Number of monthly active users

Price estimate



Estimated price is calculated based on $0.05 per 100 authentications and $0.01 per 1,000 public-key retrievals

Frequently asked questions

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How does Zalter Identity Work?

Zalter Identity relies on cryptographic principles like Public-Key Cryptography to create digital signatures that have to be checked. The Public-Key is securely sent to Zalter and delivered to the Service Provider (your server) meanwhile the Private-Key never leaves the user device. This allows the user to sign all their requests and the Service Provider to check them.

What is an authentication?

A successful identification of the end user by their email, SMS or other means. You do not pay for failed attempts.

What happens when I exceed my 1,000 free authentications?

If you exceed 1,000 authentications, any subsequent sign ins during that month will be blocked unless you provided your payment information.

What is the price for SMS authentication?

The SMS feature will vary depending on your SMS provider. We currently integrate with Twilio, but more providers will come. The price for an authentication is the same as with any other authentication.

Do I need an Enterprise plan to access premium features?

Yes, get in touch with us so & we will grant access to the features within 24h.

Start authenticating for  free

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Zalter is free to get started and scales with you as you grow.

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