Synapse

Synapse is a cross-chain bridge and messaging protocol that moves assets between EVM chains through liquidity pools and its interchain messaging network.

Rating B: 1 restriction: Wallet screening. Bridge · Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Avalanche, Blast, Scroll, Linea.

Official app: bridge.synapseprotocol.com. Frontend code: github.com/synapsecns/sanguine/tree/master/packages/synapse-interface.

Restrictions

• Geo Block: no.
• Feature Block: no.
• Wallet screening: yes. bundled blacklist + screener.omnirpc.io/fe/address/{addr} (Chainalysis Entity API behind it); connected + destination address. Where it runs: API. Fail mode: fail-closed (error = flagged).
• VPN / Tor detection: ToS only.
• Terms of Service: explorer.synapseprotocol.com/terms, Last updated 2023-02. generic comprehensive US sanctions.

Notes

Fail-closed: a screener error marks the address as flagged. Screening lives in screenAddress().

Live checks

• screener: SDN -> {risk: true}; control -> {risk: false}

Evidence

• packages/synapse-interface/utils/screenAddress.ts
• packages/synapse-interface/contexts/UserProvider.tsx
• packages/synapse-interface/store/middleware/destinationAddressMiddleware.ts

Checked 2026-10-10. All interfaces · Methodology