ΣSigma Auth

Pricing that scales with you

Your first 5,000 active users are free.

For Developers

Build secure authentication into your apps with Bitcoin identity

Free plan

Everything you need to get started.

Free
Auth/Month
5k MAUs
Backups
Basic
Storage
1GB
Support
Community

What's included:

  • No credit card required
  • 5,000 monthly active users (MAUs)
  • No charge for users who sign up but never return
  • Pre-built components
  • Custom domain
Most Popular

Pro plan

Powerful extra features for your growing business.

$20/month
Auth/Month
10k+ MAUs
Backups
Included
Storage
10GB
Support
Email

What's included:

  • Up to 10,000 authentications/month
  • Everything in Free
  • Admin dashboard to manage users and analytics
  • Email support
  • Cloud backup included
  • Basic analytics
  • 99.9% uptime SLA

All features free to use in development mode

$50
/mo
White-label the authentication UI with your branding and custom subdomain
$50
/mo
Shamir secret sharing for distributed authentication across multiple users

Alternative Solutions

Deploy yourself or get custom enterprise solutions

Self-Hosted

Open source for self-deployment

Free
Auth/Month
Unlimited
Backups
Self-managed
Storage
Self-managed
Support
Community

What's included:

  • Unlimited authentications
  • Self-hosted deployment
  • Complete source code access
  • Bitcoin cryptographic authentication
  • OAuth 2.0 compliance
  • BAP profile integration
  • Community support
  • MIT license

Enterprise

Custom blockchain integration solutions

Contact us
Auth/Month
Custom
Backups
Custom
Storage
Custom
Support
Dedicated

What's included:

  • Custom authentication volumes
  • Blockchain integration consulting
  • Micropayments integration
  • AI workflow automation
  • Custom protocol development
  • Dedicated support team
  • SLA guarantees
  • White-label solutions

Trusted by developers and users worldwide

Open Source
MIT Licensed
Global Edge
Sub-10ms latency
24/7 Support
When you need it
99.9% Uptime
SLA guaranteed

Ready to get started?

Join the future of authentication with Bitcoin identity. Start building today.

No setup fees • Pay only for what you use • Cancel anytime