# Tollbooth OFAC Sanctions Screener

> Tollbooth OFAC Sanctions Screener is a paid API for AI agents from tollbooth-sanctions-screener.sjwilliams8.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Screens a name (individual, entity, vessel, or aircraft) against U.S. Treasury OFAC SDN and Consolidated non-SDN sanctions lists, returning ranked matches with confidence scores and matching evidence.

## Facts

- Endpoint: POST https://tollbooth-sanctions-screener.sjwilliams8.workers.dev/screen?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tollbooth-ofac-sanctions-screener-e0b4a774
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BQYtz3Ns8Tw6IpNmSUwQV

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 tollbooth-ofac-sanctions-screener-e0b4a774 -d '<json body>'
```

Example prompt: Can you screen 'Rosneft Trading SA' as a company entity against the OFAC sanctions lists and flag any matches with a confidence of at least 60?

## When to prefer this

Use this endpoint when you need a fast, cost-effective, programmatic OFAC sanctions check with ranked confidence scoring and fuzzy/alias matching — especially useful for KYC/AML workflows, onboarding pipelines, or transaction screening where you need evidence of why a match was flagged. Prefer this over manual OFAC searches when screening at volume or when you need structured, auditable match evidence. Note: this is an assistive screening signal, not a certified compliance determination.

## Known failure modes

- Name field missing or empty — 400 bad request
- Invalid entity_type enum value — validation error
- min_confidence out of 0-100 range — may return unexpected results
- Payment not included or invalid x402 token — payment required error
- Network timeout on Cloudflare Worker — 503 or connection error
- OFAC list temporarily unavailable during sync window — stale data or error response

## How this service works

Before your agent onboards, pays, or contracts with a counterparty: screen the name against the U.S. Treasury OFAC sanctions lists (SDN + Consolidated non-SDN, synced every 6h) for $0.01. Benchmarked 114/114 sanctioned names found with zero false positives on a 152-case adversarial corpus of misspellings, word-order swaps, and transliterated aliases. Ranked candidates with confidence 0-100, program tags, and match evidence. Assistive screening signal, not a certified compliance determination.

## Output

Returns a ranked list of candidate matches from the OFAC SDN and Consolidated non-SDN lists, each with a confidence score (0-100), the OFAC list entry details, applicable sanctions program tags, and matching evidence including alias hits and fuzzy/word-order-tolerant matches. An empty result indicates no hits as of the stated list version. The data is synced every 6 hours.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "name": {
   "type": "string",
   "description": "Name to screen (entity, vessel, aircraft, or individual)."
  },
  "country": {
   "type": "string",
   "description": "Optional country filter (as published by OFAC)."
  },
  "entity_type": {
   "enum": [
    "individual",
    "entity",
    "vessel",
    "aircraft"
   ],
   "type": "string",
   "description": "Optional filter by OFAC entity type."
  },
  "min_confidence": {
   "type": "number",
   "description": "Only return candidates at or above this confidence (0-100). Default 40."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tollbooth-ofac-sanctions-screener-e0b4a774/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tollbooth-sanctions-screener.sjwilliams8.workers.dev](https://www.zero.xyz/host/tollbooth-sanctions-screener.sjwilliams8.workers.dev/llms.txt)