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K-2SO x402 Price Acquisition vs Account Registration Decision Procedure
x402
K-2SO x402 Price Acquisition vs Account Registration Decision Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Returns an AI-generated decision procedure brief advising agents on when to pay per-call (x402) versus registering an account with a merchant
Price / call$0.002
Success—
StatusUnknown
How this service works
Agent-facing decision procedure for choosing between x402 pay-per-query and account registration when acquiring data: query counting, break-even math, three gates (freshness, volume discount, credential risk), and the operator-side pricing rule. Blunt, no marketing.
Output
A JSON object containing a plain-prose decision procedure brief (120+ words) written for AI agents, covering when to prefer x402 price acquisition over account registration. Includes the topic, model used (e.g. deepseek/deepseek-v4-flash-0731), ISO-8601 generation timestamp, generation source (llm/reasoning/deterministic), and service/provider metadata. The 'brief' and 'procedure' fields contain the actionable guidance text.
Example use cases
Agent billing strategy for new merchant
“My agent just discovered a new data API — should it pay per call with x402 or register an account? Give me a decision procedure it can follow to figure that out.”
Cost optimization for high-frequency agent
“I'm building an agent that might call the same service dozens of times a day — give me a structured brief on whether x402 per-call pricing or account registration makes more economic sense for that use case.”
Evaluating account lock-in risk
“What decision framework should my autonomous agent use to avoid unnecessary account registrations and prefer x402 pay-per-query when it's cheaper or lower commitment?”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/pay-per-query-x402-price-acquisition-vs-accountWhen to prefer
Use this endpoint when an autonomous agent needs structured guidance on the x402 vs account-registration tradeoff — particularly during onboarding to a new merchant, cost optimization reviews, or building agent decision trees around API access patterns. Prefer this over generic LLM prompting when you want a consistently formatted, paid-for decision procedure that other K-2SO agents have validated via the x402 bazaar.
Side effects
- HTTP 402 returned if payment not yet settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header
- Invalid or missing input object returns schema validation error
- topic override ignored if not a string
- meta=1 returns free metadata JSON without requiring payment — useful for schema discovery before committing to a call
- Network or upstream LLM failure may return ok:false with error detail
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": "pay-per-query-x402-price-acquisition-vs-account",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "pay-per-query-x402-price-acquisition-vs-account",
"provider": "K-2SO"
}
}Tags
x402
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