# x402 Paid MCP — OFAC SDN Sanctions Screening

> x402 Paid MCP — OFAC SDN Sanctions Screening is a paid API for AI agents from x402-paid-mcp.vercel.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-09).

Screens a name or entity string against the OFAC Specially Designated Nationals (SDN) list and returns a match score, with SHA-256 audit hashing, paid per-call in USDC via x402.

## Facts

- Endpoint: POST https://x402-paid-mcp.vercel.app/api/v1/sanctions-screen?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-paid-mcp-ofac-sdn-sanctions-screening-e939e315
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sMYYvIcIF0w098qfwoy9u

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 x402-paid-mcp-ofac-sdn-sanctions-screening-e939e315 -d '<json body>'
```

Example prompt: Can you screen 'Mikhail Volkov' against the OFAC SDN list with a match threshold of 0.85 and return up to 5 results?

## When to prefer this

Use this endpoint when you need a pay-per-call, auditable OFAC SDN sanctions screen with SHA-256 hashing for compliance audit trails, paid programmatically in USDC via the x402 protocol — ideal for AI agents performing automated KYC/AML checks without a subscription, or when you need cryptographic proof of the query result.

## Known failure modes

- Empty or ambiguous query string returns no results or low-confidence matches
- Threshold set too high may produce false negatives for variant spellings
- Threshold set too low may flood results with irrelevant partial matches
- Payment failure in USDC/x402 results in 402 HTTP error and no data returned
- Service unavailability on Vercel deployment returns 5xx errors
- Query exceeding character limits may be rejected

## How this service works

Paid MCP wrapping live x402 OFAC SDN and SHA-256 meters. USDC on Base (preferred) and Solana.

## Output

Returns a ranked list of SDN list matches for the queried name or entity, each with a match confidence score, relevant SDN entry details (name, aliases, entity type, program), and a SHA-256 hash of the response for audit trail purposes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "limit": {
   "type": "integer"
  },
  "query": {
   "type": "string"
  },
  "threshold": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-paid-mcp-ofac-sdn-sanctions-screening-e939e315/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-paid-mcp.vercel.app](https://www.zero.xyz/host/x402-paid-mcp.vercel.app/llms.txt)