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OFAC SDN List Search API
x402
OFAC SDN List Search API is a paid API for AI agents from api.maxwellinternational.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).
Searches the U.S. Treasury OFAC Specially Designated Nationals (SDN) list by name or identifier, returning match scores and designation details
Price / call$0.005
Success—
StatusUnknown
How this service works
OFAC SDN screen by name, alias (aka/fka/nka), or UID against the Treasury SDN list joined with alt.csv and add.csv. A clean no-match is a valid screening result and is charged.
Output
Returns a JSON object containing: match boolean, total match count, the query string, matched records with UID, name, type (individual/entity), fuzzy match score (0-100), OFAC program designation, remarks (including DOB and sanctions details), matched alias, vessel type, call sign, scoring methodology explanation, data source URLs (SDN/add/alt CSV files from Treasury), total list count (~19k entries), alias count (~20k), and the timestamp the list was last fetched.
Example use cases
Onboarding KYC sanctions screen
“Before we onboard this new customer, can you check if 'Tariq Al-Farouk' appears on the OFAC SDN list and give me their match score and designation details?”
Payment recipient compliance check
“I need to wire money to a supplier called 'Novatek Oil Trading' — can you screen that name against the OFAC sanctions list before I approve the payment?”
Investor due diligence screening
“We're about to close a funding round and need to verify our lead investor 'Viktor Petrov' isn't on the OFAC SDN list — can you run that check and show me any matches with their program and score?”
Technical details
Endpoint
GEThttps://api.maxwellinternational.ai/v1/ofac/sdn?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need fast, scored fuzzy-matching against the official U.S. Treasury OFAC SDN list with alias expansion, program details, and structured JSON output — particularly in automated compliance workflows, KYC pipelines, or payment pre-screening where you need both a match boolean and a confidence score. Prefer this over manual Treasury website lookups when you need machine-readable results with scoring at $0.005/call.
Side effects
- Empty or missing query parameter returns an error or empty result set
- Misspelled names may return low-score or zero matches even for sanctioned individuals
- List data may be stale if the upstream Treasury CSV fetch is delayed
- Payment failure (402) if x402 micropayment is not properly included
- Network timeout if the upstream Treasury data source is unreachable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 5,
"match": true,
"query": "ABBAS, Abu",
"source": "https://www.treasury.gov/ofac/downloads/sdn.csv",
"matches": [
{
"uid": "2674",
"name": "ABBAS, Abu",
"type": "individual",
"score": 100,
"title": "Director of PALESTINE LIBERATION FRONT - ABU ABBAS FACTION",
"program": "SDGT",
"remarks": "DOB 10 Dec 1948; Secondary sanctions risk: section 1(b) of Executive Order 13...",
"callSign": null,
"programs": [],
"matchedOn": "name",
"vesselType": null,
"matchedName": "ABBAS, Abu"
}
],
"scoring": "uid/exact=100, same tokens any order=90, prefix=70, all tokens=60, substring=...",
"sources": {
"add": "https://www.treasury.gov/ofac/downloads/add.csv",
"alt": "https://www.treasury.gov/ofac/downloads/alt.csv",
"sdn": "https://www.treasury.gov/ofac/downloads/sdn.csv"
},
"fetchedAt": "2026-09-26T06:50:10.696Z",
"listCount": 19391,
"aliasCount": 20205,
"totalMatches": 5
}
}Tags
x402
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