Across

Across is an intent-based cross-chain bridge. Relayers front funds to users on the destination chain within seconds and are repaid later from a shared liquidity pool, with UMA's optimistic oracle securing the settlement.

Rating A: No technical restriction found (terms written only in the ToS are not counted). Bridge · Ethereum, Arbitrum, Optimism, Base, Polygon, zkSync, Linea, Scroll, Blast, Mode, Lisk, Unichain, Ink, Soneium, World Chain.

Official app: across.to. Frontend code: private now.

Restrictions

• Geo Block: ToS only. ToS: by IP, at Risk Labs' discretion.
• Feature Block: no.
• Wallet screening: n/a. quote API returns a quote for an SDN recipient.
• VPN / Tor detection: ToS only.
• Terms of Service: across.to/terms-of-service, Last updated 2025-10-22. generic comprehensive US sanctions.

Notes

Across API is public (suggested-fees, available-routes). URL note: app.across.to -> 302.

Live checks

• /api/suggested-fees with SDN recipient -> normal quote

Evidence

• across.to/terms-of-service
• web.archive.org/web/20250829200542/https://github.com/across-protocol/frontend

Checked 2026-10-28. All interfaces · Methodology