Don't just poll the oracle — get pushed the moment an address is sanctioned

• It's free — an on-chain oracle plus a free screening API.
• It gives a simple, binary is-sanctioned answer for a single address, on demand.
• It's a sensible building block for an inline check at transaction time.

We use the same free, public OFAC data — we don't resell it, and we're a complement to on-demand screening, not a replacement for it.

• You have to poll.Nothing tells you when a watched address is newly added — you'd have to query on a schedule, diff the results, and build the delivery yourself.
• No change events.A binary yes/no carries no timeline — no “this flipped at 14:02 UTC,” no added/removed history to act on or show an examiner.
• Timeliness is best-effort. The free oracle is explicitly provided as-is, with no guarantee of how quickly a new listing appears.

• Push, not poll — subscribe to addresses or programs and get a signed change alert via webhook, email, or Telegram within minutes.
• Transparent freshness — we publish when we last synced the SDN list and target 99.9% delivery; see trust & reliability.
• A real event stream + API — every add/remove/modify with a timestamp and diff, pollable or pushed; see the API reference.

Keep the oracle for inline checks if you like it — many teams run both: the oracle for the point-of-transaction yes/no, OFAC Alert for the continuous “tell me when it changes.” Also comparing tools at the $99 tier? See the ChainScreen alternative.