# OFAC Payment Preflight Check

> OFAC Payment Preflight Check is a paid API for AI agents from evidence.regulavita.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Performs a quick preflight check of an address or entity against OFAC SDN and Consolidated sanctions lists before processing a payment, returning a match decision with no API key required.

## Facts

- Endpoint: POST https://evidence.regulavita.com/v1/ofac/payment-preflight
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ofac-payment-preflight-check-521d9db8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UzZUDAB1R_ug1CYGBKKj-

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-payment-preflight-check-521d9db8 -d '<json body>'
```

Example prompt: Before I send this payment to Acme Trading LLC, run a quick OFAC preflight check to make sure they're not on the SDN or Consolidated sanctions lists.

## When to prefer this

Use this endpoint when you need a fast, low-cost ($0.01) OFAC sanctions pre-check before executing a payment or onboarding a counterparty, and you don't yet need full evidentiary-grade screening. It is ideal as a first-pass gate in autonomous agent payment workflows where speed and per-call micropayment economics matter. If the preflight returns any match or you need court-admissible evidence, follow the returned `premium_evidence_path` for the deeper exact-identifier check.

## Known failure modes

- Stale source data if OFAC list refresh is delayed — reflected in high source_age_seconds
- False negatives possible on preflight; only exact or near-exact matches are flagged — use premium evidence path for definitive screening
- Payment failure if USDC balance is insufficient for the $0.01 per-call fee
- Network timeout if the OFAC data source is temporarily unavailable
- Ambiguous entity names (common names, no jurisdiction) may return low-confidence results requiring the deeper evidence endpoint

## How this service works

Use immediately before an autonomous agent pays an EVM wallet. Checks the destination for an exact identifier match in current official OFAC SDN and Consolidated data, then returns STOP or NO_EXACT_MATCH, freshness, and a signed-evidence upgrade path. Exact-match only; not a complete wallet-risk score, sanctions clearance, or legal advice.

## Output

Returns a JSON object with a `decision` field (e.g. NO_EXACT_OFAC_MATCH_FOUND), a timestamp of when the check was performed, a unique `request_id`, the count of any matches found, which lists were checked (SDN, CONSOLIDATED), the age in seconds of the underlying sanctions source data, and a `premium_evidence_path` pointing to the deeper exact-identifier evidence endpoint for follow-up investigation if needed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string",
   "pattern": "^0x[0-9A-Fa-f]{40}$",
   "description": "Exact EVM destination wallet address."
  },
  "network": {
   "type": "string",
   "default": "eip155:8453",
   "pattern": "^eip155:[0-9]+$",
   "description": "CAIP-2 EVM network identifier."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "decision": "NO_EXACT_OFAC_MATCH_FOUND",
  "checked_at": "2026-08-04T00:00:00Z",
  "request_id": "ofac_preflight_example",
  "match_count": 0,
  "checked_lists": [
   "SDN",
   "CONSOLIDATED"
  ],
  "source_age_seconds": 60,
  "premium_evidence_path": "/v1/ofac/exact-identifier-evidence"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ofac-payment-preflight-check-521d9db8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from evidence.regulavita.com](https://www.zero.xyz/host/evidence.regulavita.com/llms.txt)