Overview
The OFAC Address Check add-on lets you screen blockchain addresses against the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) Specially Designated Nationals (SDN) sanctioned-address lists through JSON-RPC.
You can check an individual address, retrieve every sanctioned address for a chain, inspect available list versions, or download a complete versioned artifact for offline screening. The lists are refreshed daily from the official OFAC SDN publication, and each version includes a detached Ed25519 signature for verification and auditability.
Features
The add-on provides address screening and signed OFAC list access for online and offline compliance workflows.
- Address screening: Check an address against the latest OFAC SDN sanctioned-address list in a single request.
- Multi-chain coverage: Screen addresses and retrieve sanctioned-address data across supported blockchain networks.
- Daily-updated signed lists: Access daily list versions with detached Ed25519 signatures for a verifiable audit trail.
- Bulk address retrieval: Download every sanctioned address for a specific chain and perform screening locally.
- Versioned artifacts: Retrieve the latest artifact or a specific historical list version.
How to enable the add-on
Follow these steps to enable OFAC Address Check on a supported Quicknode endpoint.
- Open the OFAC Address Check add-on page in the Quicknode dashboard.
- Click Install and select a Quicknode endpoint on one of the supported chains listed below.
- Select a plan and complete the installation.
- Send any of the supported JSON-RPC methods to your add-on-enabled Quicknode endpoint.
Supported chains
The OFAC Address Check add-on can be enabled on endpoints for the following chains:
- Arbitrum
- Bitcoin
- Bitcoin Cash
- BNB Smart Chain
- Ethereum
- Litecoin
- Solana
- XRP Ledger
- Zcash
Supported methods
The following method documentation currently uses an Ethereum endpoint:
| Method | Description |
|---|---|
| ofac_check | Checks whether an address is on the OFAC SDN sanctioned-address list. |
| ofac_latestList | Returns the latest list artifact and its detached Ed25519 signature. |
| ofac_listVersions | Returns the version numbers of all published sanctioned-address lists. |
| ofac_chainAddresses | Returns every sanctioned address on the latest list for a chain. |
| ofac_getList | Returns a specific sanctioned-address list by version. |
| ofac_chains | Returns all chain identifiers included in the latest list. |