ACT Demo — Cloudflare Research

ACT Credentials

A privacy-preserving authentication protocol that enables numerical credit systems without tracking individual clients

Frequently Asked Questions

What is the main use case?
Enables to rate limit users trying to access a resource.
Does the user's identity gets protected?
Yes, server cannot determine which user is spending credits.
How does the two-step process work?
Simply request credits first, then spend them as needed. The process is streamlined for efficiency.
Can I revoke tokens after issuance?
Yes, ACT tokens provides token revocation capabilities. The credit value of revoked tokens is set to zero.
I want to know more or to contribute.
Reach the Cloudflare Research Team.

Documentation & Resources

📖 ACT Specification

ACT specification is under development at Privacy Pass working group.

View API Docs →

🚀 Quick Start

Start playing by entering to the Client website.

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