Across V1

Across V1 is the first version of the Across bridge, in which liquidity providers funded per-token pools on Ethereum and relayers filled transfers from layer-2 networks, secured by UMA's optimistic oracle. Its app is still served at v1.across.to; current transfers go through across.to.

Legacy version: The first Across app, kept at the v1.across.to subdomain (frontend-v1, last commit 2023-12-26) while transfers go through across.to (checked 2026-10-10).

Other versions of this protocol: Across.

Rating A: No technical restriction found (terms written only in the ToS are not counted). Bridge · Ethereum, Optimism, Arbitrum, Boba.

Official app: v1.across.to. Frontend code: github.com/across-protocol/frontend-v1.

Restrictions

• Geo Block: ToS only. No geo check in the v1 code; the Across ToS reserves IP-based blocking.
• Feature Block: no.
• Wallet screening: no.
• VPN / Tor detection: ToS only.
• Terms of Service: across.to/terms-of-service, Last updated 2025-10-22. generic comprehensive US sanctions.

Notes

Clean: neither frontend-v1 nor the served v1 bundle has a geo check, wallet screening or VPN detection.

Live checks

• curl (2026-10-10): v1.across.to serves the CRA build of frontend-v1 (main.98572383.chunk.js); no screening or geo calls

Evidence

• v1.across.to/static/js/main.98572383.chunk.js
• across.to/terms-of-service

Checked 2026-10-10. All interfaces · Methodology