# OFAC SDN List Search API

> 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

## Facts

- Endpoint: GET https://api.maxwellinternational.ai/v1/ofac/sdn?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ofac-sdn-list-search-api-57ffd072
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lru0Jih-jFk8w9VYK_AoT

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ofac-sdn-list-search-api-57ffd072
```

Example prompt: Can you check if 'ABBAS, Abu' appears on the OFAC Specially Designated Nationals list and tell me the match score and what program they're designated under?

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "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
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ofac-sdn-list-search-api-57ffd072/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.maxwellinternational.ai](https://www.zero.xyz/host/api.maxwellinternational.ai/llms.txt)