The team behind zero‑knowledge computing firm Brevis announced today that its Arca desktop application is open to anyone with a Mac or Windows computer. After a month of invite‑only testing, the service now allows users to sign up with an email or Google account and start monetising AI session data that would otherwise be discarded.

How Arca works

According to NewsBTC, Arca scans the session histories stored by popular AI tools—including Claude Code, Claude Desktop, Codex and Cursor—on the user’s device. Users can review the list, select specific sessions, and the app strips names, file paths, account details and keys locally before any data leaves the computer. A quote range is then presented; if the user confirms, the session is sent for review and, if approved, paid out on a weekly basis.

Privacy and verification

Both sources note that Arca performs all anonymisation on‑device and does not upload data without explicit user consent. After upload, additional anonymising steps run on Arca’s side. Michael, co‑founder and CEO of Brevis, emphasized that the platform applies the same verifiable‑computing principles used in Brevis’s Pico zkVM, aiming to prove the value of contributed data rather than relying on trust.

Incentives and early‑access rewards

The launch coincides with an “Arca Launch Challenge” that adds $10,000 in prizes for approved sessions submitted through November 30, as reported by BeInCrypto. While the service is free to use, users can optionally link a GitHub account to enhance their profile, potentially increasing the value of their contributions.

What to watch next

Observers will monitor the volume of sessions submitted and the payout rates as Arca scales beyond its initial user base. Future updates are expected to expand support to additional AI models and to refine the verification process, according to the Brevis team’s roadmap.

FAQ

What types of AI sessions does Arca accept?

Arca currently accepts sessions from Claude Opus, Claude Desktop, Claude Code, Codex and Cursor, with very short sessions excluded.

When will users receive payment for approved sessions?

Approved sessions are paid out on a weekly schedule.

Is there a cost to use Arca?

The app is free to download and use; payments are made only to users whose sessions are approved.