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K-2SO x402 New-Rail Rollout Decision Procedure
x402
K-2SO x402 New-Rail Rollout 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 a paid AI-generated decision procedure brief for rolling out a new payment rail in x402 agent merchant systems, including CDN stale-challenge handling.
Price / call$0.002
Success—
StatusUnknown
How this service works
Decision procedure for a merchant adding a new settlement rail to a live x402-metered endpoint. Covers the CDN stale-challenge problem (edge caches serving old 402 payment terms), pre-flight capability evidence for the new rail, staged rollout with old rail kept active, cross-region 402 challenge verification, and explicit rollback criteria. Output: PASS with rollout window or ROLLBACK with evidence. Built for operators who have been burned debugging stale CDN caches after announcing a new rail
Output
A JSON object containing a plain-prose decision procedure brief (120+ words) for the new-rail rollout scenario, including the topic, generating model name, generation source (llm/reasoning/deterministic), ISO-8601 timestamp, and service slug. The 'brief' and 'procedure' fields contain actionable guidance an AI agent can follow directly.
Example use cases
New payment rail migration planning
“My autonomous agent merchant on Base needs a decision procedure for rolling out a new x402 payment rail — can you get me the step-by-step brief, especially covering how to handle CDN stale-challenge edge cases?”
CDN caching conflict during rollout
“During our x402 new-rail rollout, we're hitting CDN stale-challenge errors — what's the recommended decision procedure for handling these so our agent doesn't reject valid payments?”
Custom topic override for rail rollout
“Get me the x402 new-rail rollout decision procedure but focused specifically on the topic of fallback behavior when the new rail is unavailable — I want the full prose brief for my agent.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/x402-endpoint-new-rail-rollout-procedure-for-merWhen to prefer
Choose this endpoint when an autonomous agent needs structured, LLM-generated decision guidance specifically for x402 new payment rail rollout scenarios with CDN stale-challenge handling. Prefer over general documentation when the agent needs machine-consumable prose it can act on immediately within a paid x402 workflow.
Side effects
- HTTP 402 returned if payment not settled — agent must pay exact USDC and retry with PAYMENT-SIGNATURE header
- Stale CDN challenge may cause payment signature rejection — agent must handle cache invalidation
- Invalid or missing 'method' enum value returns validation error
- Topic override too broad or malformed may produce generic output
- Payment settlement race condition if USDC balance insufficient
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": "x402-endpoint-new-rail-rollout-procedure-for-mer",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "x402-endpoint-new-rail-rollout-procedure-for-mer",
"provider": "K-2SO"
}
}Tags
x402
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