RedStone launches Sanctions Oracle for onchain compliance on Ethereum

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RedStone launches Sanctions Oracle for onchain compliance on Ethereum

The oracle checks wallets against 463 official sanctions lists and lets smart contracts block flagged addresses with a single read call

by
Estefano Gomez

Oct. 8, 2026

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RedStone has put sanctions screening directly onchain. The modular oracle network launched its Sanctions Oracle on Ethereum mainnet on October 7, 2026, giving smart contracts a way to check wallets against 463 official sanctions lists.

How the Sanctions Oracle works

The oracle compiles sanctioned addresses into an onchain registry that contracts can consult before letting a transaction through. The data comes from 463 official sources, aggregated through OpenSanctions. Those sources include lists from OFAC, the EU, the UK and the UN.

A smart contract makes a single read call to the oracle. If the counterparty wallet is flagged, the contract can block the transaction. The screening happens inside the transaction itself, with no offchain review required.

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RedStone says the sanctions list will be updated every week. Each update carries a timestamp recorded onchain, so a contract can verify how fresh the data is before trusting it.

Updates to the oracle are secured through a multisig mechanism. That means changes to the list require sign-off from multiple parties rather than a single key holder.

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A drop-in replacement for Chainalysis users

RedStone built the Sanctions Oracle to match the interface of the Chainalysis Sanctions Oracle. Protocols already using the Chainalysis version can switch by changing a single contract address. Their existing functionality stays intact.

RedStone’s track record and product push

RedStone has been operating since 2021. The company says it has recorded zero downtime or mispricing incidents in that time. It also says its infrastructure secures billions of dollars in asset value across more than 100 blockchain networks.

The Sanctions Oracle joins a growing product lineup. RedStone already offers Bolt, a high-frequency oracle built for low latency, and Atom, an oracle designed for liquidation-aware feeds.

What this means for DeFi protocols

Embedding sanctions checks directly into smart contracts means a flagged wallet gets blocked automatically, with no human in the loop to catch edge cases. The multisig protects against a single compromised key, but it also means a defined group controls what goes on the list. Weekly updates are guaranteed, but sanctions designations can land at any time, so protocols will need to decide how stale is too stale when they set their timestamp checks.

Disclosure: This article was edited by Estefano Gomez. For more information on how we create and review content, see our Editorial Policy.