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The Relay platform screens transaction addresses using third-party risk data and an internal blocklist. Screening can prevent a quote or fill from proceeding.

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How It Works

Screening uses:
  • Third-party data — Risk and sanctions databases, including HackBounty and Chainalysis, identify flagged addresses.
  • Internal blocklist — The platform maintains additional address restrictions based on threat reports and investigations.

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Blocked Transactions

A flagged address can produce a “Detected sanctioned address” notification or a blocked-wallet error. See Unsupported Exchanges before sending from an exchange. A fill-time screening failure does not trigger an automatic refund. See Execution Errors and contact Support for review.