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Deterministic Counterparty Recipient Screening Decision Procedure
x402
Deterministic Counterparty Recipient 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 2026-09-15).
Returns a plain-prose decision procedure for AI agents evaluating how to screen counterparties or payment recipients before transacting
Price / call$0.002
Success—
StatusDown
How this service works
Deterministic pre-sign screening of an x402 recipient: check the raw payTo address against sanctions lists, drainer/phishing/mixer heuristics, and prior on-chain behavior before your agent signs. Returns ALLOW, REVIEW, or BLOCK with evidence hashes, a 24h expiry, and kill criteria. Agents got wallets and nobody watches who they pay; this is the watch.
Output
A JSON object containing a plain-prose decision procedure (120+ words) describing how an AI agent should screen counterparties or payment recipients, along with metadata including the model used, generation source (deterministic/llm/reasoning), ISO-8601 timestamp, topic, and service slug. The `brief` and `procedure` fields contain the actionable guidance text.
Example use cases
Pre-payment recipient vetting workflow
“Before my agent pays out to a new merchant via x402, what's the step-by-step procedure it should follow to screen that recipient? I need a plain-language decision guide.”
Compliance checklist for agent wallet disbursements
“My autonomous agent manages a shared wallet and needs a formal decision procedure for evaluating counterparties before any disbursement — can you get me the recipient screening brief?”
Custom topic: KYC-lite screening for DeFi agents
“Fetch the counterparty recipient screening procedure but apply it specifically to the topic of KYC-lite checks for DeFi protocol agents — I need the decision prose tailored to that context.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/deterministic-counterparty-recipient-screening-bWhen to prefer
Choose this endpoint when an AI agent needs structured, LLM-generated decision guidance specifically for screening payment counterparties or recipients before executing x402 micropayments on Base. It is ideal for agents that lack built-in compliance logic and need a reusable, prose-based procedure they can follow or relay to a user. Prefer this over generic risk APIs when you want agent-native, pay-per-call guidance priced at $0.002 USDC with no account required.
Side effects
- HTTP 402 returned if payment has not been settled — agent must pay exact USDC and retry with PAYMENT-SIGNATURE header
- Invalid or missing payment signature returns payment error detail
- Malformed query parameters (e.g. invalid meta enum value) may return validation error
- Service temporarily unavailable if agent heartbeat is down
- Topic override too long or malformed may be ignored or cause error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"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": "deterministic-counterparty-recipient-screening-b",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "deterministic-counterparty-recipient-screening-b",
"provider": "K-2SO"
}
}Tags
x402
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