Across
Across 是一个基于意图的跨链桥。中继者在几秒内在目标链上向用户垫付资金，之后从共享流动性池中获得偿还，结算由 UMA 的乐观预言机保障。
该协议的其他版本：Across V1 (旧版)。
评级 B：1 项限制：钱包筛查。 跨链桥 · Ethereum, Arbitrum, Optimism, Base, Polygon, zkSync, Linea, Scroll, Blast, Mode, Lisk, Unichain, Ink, Soneium, World Chain。
官方应用：across.to。前端代码：已转为私有。
限制
机制描述、备注和证据等技术细节保留数据源的英文原文。
- 地区封锁： 仅条款。ToS: by IP, at Risk Labs' discretion.
- 功能限制： 否。
- 钱包筛查： 是。blacklist.risklabs.foundation/api/check/{address} (Risk Labs disallow list) called after wallet connect; the quote API itself still returns a quote for an SDN recipient. 执行位置：API。 失败模式：失败放行 (a failed check leaves isBlocked=false)。
- VPN / Tor 检测： 仅条款。
- 服务条款： across.to/terms-of-service，最近更新 2025-10-22。generic comprehensive US sanctions.
说明
Across API is public (suggested-fees, available-routes); the app additionally checks the connected wallet against the Risk Labs disallow list. URL note: app.across.to -> across.to. The legacy v1 app is a separate entry (Across V1).
实测记录
- /api/suggested-fees with SDN recipient -> normal quote
- blacklist.risklabs.foundation/api/check (2026-10-10): SDN -> true; control 0x2222…2222 / 0x1111…1111 -> false