Last updated: July 23, 2026
libregistry ("we," "our," "us") provides a registry and API for library compatibility data. This policy explains what information we collect, why, and how you can control it.
Account information. When you sign in with Google, we receive your email address and name. We use your email to identify your account and link it to your API key. We never receive or store your Google password.
API usage. When you or your agents make requests to our API, we log the request path, timestamp, and response status. This lets us show you usage counts on your account page and helps us maintain service reliability.
API keys. We store a one-way hash of your API key, plus its last four characters for display. We never store your full key — it's shown to you once, at creation, and cannot be retrieved afterward.
We don't collect payment information (there is no paid tier at this time). We don't track you across other websites. We don't use advertising networks, and we don't sell your data to third parties, ever.
We do not use your data for any purpose beyond operating and improving libregistry.
Account data is stored in a managed database hosted in the United States. Sign-in is handled by a third-party authentication provider. We choose infrastructure providers that do not sell customer data, and we remain responsible for how your information is used regardless of which providers we rely on.
To delete your account and all associated data, email hello@libregistry.com. We'll remove your account, API key, and request logs within 7 days of your request.
If we make material changes, we'll update the "last updated" date above. Continued use of libregistry after a change constitutes acceptance of the updated policy.
Questions about this policy or your data? Email hello@libregistry.com.