Privacy Policy

What Euclid is

Euclid provides deterministic computation tools (math, conversions, statistics, date arithmetic, and more) for AI agents via the Model Context Protocol (MCP). We are a hosted API service.

Data we collect

• Account information: Your email address and name, provided via Google OAuth through Supabase. We do not store your Google password.
• Usage data: The computation requests sent to our tools (inputs and results) for credit metering and debugging. We do not sell or share this data.
• Billing information: Payment processing is handled entirely by Stripe. We do not store credit card numbers or banking details.

Authentication

Authentication is handled by Supabase. When you sign in with Google, Supabase manages the OAuth flow and stores your session. We receive your email address, name, and profile picture from Google — nothing more.

How we use your data

• To authenticate you and manage your account
• To meter credit usage and process billing
• To debug issues with our computation tools

We do not sell, share, or use your data for advertising.

Third-party services

• Supabase — authentication and database
• Stripe — payment processing
• Railway — server hosting

Each has its own privacy policy.

Data retention

We retain usage logs for billing and debugging purposes. If you delete your account, we will remove your personal data within 30 days.

Contact

Questions about this policy? Email us at euclidtools@gmail.com.