# x402 Agent Payment Compliance: Real-Time Sanctions Screening Decision Procedure

> x402 Agent Payment Compliance: Real-Time Sanctions Screening Decision Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-10-31).

Returns a paid, LLM-generated decision procedure for autonomous agents to screen counterparties against sanctions lists in real time when sending or receiving x402 micropayments.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/x402-agent-payment-compliance-real-time-sanction?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-agent-payment-compliance-real-time-sanctions-screening-decision-42ca4f55
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vf3O-whwJZKu0RfXWKN8M

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-agent-payment-compliance-real-time-sanctions-screening-decision-42ca4f55
```

Example prompt: Give me the decision procedure my agent should follow to screen for sanctions in real time before sending or receiving x402 micropayments — including the inputs to check, thresholds to apply, and what to do when screening fails.

## When to prefer this

Use this endpoint when you need an opinionated, agent-executable sanctions screening decision procedure specifically tailored to x402 micropayment flows, and free public documentation does not provide a sufficiently precise or agentic decision schema. Prefer this over generic compliance docs when you need structured inputs, thresholds, and failure modes ready to embed in agent logic.

## Known failure modes

- Payment not completed — returns 402 with payment required headers instead of result
- topic override not recognized — procedure generated for default topic
- LLM generation failure — ok:false with error detail in result
- Rate limiting or server error — HTTP 5xx response
- Malformed query parameters — schema validation error

## How this service works

Decision procedure for agents handling x402 payments under sanctions obligations. Covers counterparty identifiability tiers (full identity, address-only, pseudonymous, hidden on private rails), list sources (OFAC SDN, EU, UN), fuzzy-match thresholds, and outputs PASS / HOLD_FOR_REVIEW / BLOCK / SCREENING_IMPOSSIBLE. Includes refusal receipt generation, append-only denial ledger, false-positive handling, re-screening cadence, and the private-rail case where the counterparty is hidden by design.

## Output

A structured text document (brief) containing a concrete decision procedure for real-time sanctions screening in x402 agent payment contexts: inputs required (wallet address, jurisdiction, transaction amount, counterparty metadata), decision thresholds, pass/fail logic, and enumerated failure modes. Also includes metadata such as topic, service slug, generation timestamp, generation source (llm/reasoning/deterministic), and payment confirmation fields.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "x402 agent payment compliance: real-time sanctions screening decision procedure paid response",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "ok",
      "paid",
      "service",
      "provider",
      "result"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "paid": {
       "type": "boolean"
      },
      "result": {
       "type": "object",
       "required": [
        "ok",
        "service"
       ],
       "properties": {
        "ok": {
         "type": "boolean",
         "description": "Handler success"
        },
        "brief": {
         "type": "string",
         "description": "Decision procedure prose for agents"
        },
        "model": {
         "type": "string"
        },
        "topic": {
         "type": "string"
        },
        "service": {
         "type": "string",
         "description": "Service slug"
        },
        "procedure": {
         "type": "string"
        },
        "generatedAt": {
         "type": "string",
         "description": "ISO-8601 timestamp"
        },
        "generationSource": {
         "enum": [
          "llm",
          "reasoning",
          "deterministic"
         ],
         "type": "string"
        }
       }
      },
      "payment": {
       "type": "object",
       "properties": {
        "code": {
         "type": "string"
        },
        "payer": {
         "type": "string"
        },
        "detail": {

… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true,
  "result": {
   "ok": true,
   "brief": "plain prose decision procedure (120+ words)",
   "model": "deepseek/deepseek-v4-flash-0731",
   "topic": "string topic",
   "service": "x402-agent-payment-compliance-real-time-sanction",
   "procedure": "same as brief",
   "generatedAt": "2026-01-01T00:00:00.000Z",
   "generationSource": "deterministic"
  },
  "service": "x402-agent-payment-compliance-real-time-sanction",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-agent-payment-compliance-real-time-sanctions-screening-decision-42ca4f55/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from k2so.wrong.systems](https://www.zero.xyz/host/k2so.wrong.systems/llms.txt)