# SYNTHORA Vessel Sanctions Screener

> SYNTHORA Vessel Sanctions Screener is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Screens a vessel by IMO number or name against the OFAC SDN sanctioned-vessels list (1,524 tracked ships) and returns a compliance verdict

## Facts

- Endpoint: POST https://api.hergertsynthora.com/v1/vessel-sanctions
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-vessel-sanctions-screener-df274b16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MIdvJMi_TRAnzRMYbM_F6

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 synthora-vessel-sanctions-screener-df274b16 -d '<json body>'
```

Example prompt: Before we proceed with this tanker trade, can you check if the vessel named 'PACIFIC BRAVO' or IMO 9867576 is on the OFAC SDN sanctioned-vessels list?

## When to prefer this

Use this endpoint when you need a fast, low-cost OFAC SDN compliance check specifically for maritime vessels — either spot-checking a single vessel by IMO or name, or pulling a full sanctioned-fleet snapshot. Prefer this over general counterparty screening tools when the subject is specifically a ship or tanker. For combined OFAC + on-chain wallet + business risk checks, consider the broader counterparty business-risk endpoint on the same platform.

## Known failure modes

- Vessel not found by name due to spelling variation or alias — try IMO number instead
- Ambiguous vessel name matching multiple entries — result may include multiple candidates
- OFAC SDN source data lag — list may not reflect same-day designations
- Invalid or malformed IMO number input returns an error
- Empty or missing input field returns a validation error

## How this service works

SYNTHORA vessel-sanctions: screen any vessel (IMO or name) against the OFAC SDN sanctioned-vessels list (1,524 ships tracked) — the compliance check before touching tanker/shipping trades or chokepoint bets. List mode: full sanctioned-fleet snapshot. Source: OFAC SDN (US Treasury, free, no key). $0.03 USDC via x402 on Base.

## Output

Returns a compliance verdict indicating whether the queried vessel (by IMO number or name) appears on the OFAC SDN sanctioned-vessels list, including relevant SDN entry details if matched. In list mode, returns a full snapshot of all 1,524 tracked sanctioned vessels from the US Treasury OFAC SDN database.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "SYNTHORA vessel-sanctions: screen any vessel (IMO or name) against the OFAC SDN sanctioned-vessels list (1,524 ships tracked) — the compliance check before touching tanker/shipping trades or chokepoin"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-vessel-sanctions-screener-df274b16/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hergertsynthora.com](https://www.zero.xyz/host/api.hergertsynthora.com/llms.txt)