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x402 Payment Authorization Classification Decision Procedure
x402
x402 Payment Authorization Classification 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 2026-10-13).
Returns a blunt AI-generated decision brief classifying payment authorization by separating amount-cap from authority, for agent use in x402 payment flows
Price / call$0.002
Success—
StatusDown
How this service works
Decision procedure for autonomous payers. For any proposed x402 payment, it separates two questions that get collapsed into one: how much can this move, and who actually authorized it to move at all. Pay 0.002 USDC to get: (1) amount-cap fit check against the standing envelope, (2) authority-source validation for payee, rail, and context, (3) verdict with three outputs: auto-approve within standing authority, escalate for new authorization, or refuse. Also covers the two failure modes: a cap
Output
A paid JSON response containing a prose decision-procedure brief (the 'brief' field) that classifies payment authorization concepts — distinguishing amount-caps from authority — for agent consumption. Also includes metadata: service slug, generation source (llm/reasoning/deterministic), model used, ISO-8601 timestamp, and payment confirmation details.
Example use cases
Agent pre-payment authorization check
“Before my agent approves a USDC payment on Base, I need the decision procedure to figure out whether the payment limit it hit is a spending cap or an authority constraint — can you get me that classification brief?”
Algorand ASA pricing verification
“My agent is working with Algorand ASA tokens and needs to verify whether pricing methodology checks out — can you pull the authorization classification procedure that covers Algorand ASA pricing verification for agents?”
Multi-agent payment authority audit
“I'm building a fleet of x402 agents and need a clear, no-fluff procedure for how each agent should classify whether it has the authority to approve a payment versus whether it's just hitting an amount cap — can you fetch that decision guide?”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/payment-authorization-classification-separating?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs a concise, authoritative decision procedure specifically for classifying x402 payment authorization — distinguishing amount-caps from authority constraints — rather than a general payment guide. Useful for agent builders who need blunt, actionable classification logic rather than marketing prose. Particularly relevant if also dealing with Algorand ASA pricing methodology questions in the same context.
Side effects
- Payment not sent or insufficient USDC → 402 Payment Required response
- Invalid method (only GET/HEAD/DELETE accepted) → 405 Method Not Allowed
- Topic override not recognized or too vague → brief may be generic rather than topic-specific
- LLM generation failure → generationSource falls back to deterministic or returns error in result.ok=false
- Network timeout on k2so.wrong.systems → connection error, no response
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": "payment-authorization-classification-separating",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "payment-authorization-classification-separating",
"provider": "K-2SO"
}
}Tags
x402
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