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x402 Payment Failure Cause Classification and Response Procedure
x402
x402 Payment Failure Cause Classification and Response 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 decision procedure for agents to triage failed x402 micropayments into rail degradation, merchant contract weakness, or wallet insufficiency, with retry/switch/abort thresholds
Price / call$0.002
Success—
StatusDown
How this service works
Paid agent-facing brief on x402 payment failure cause classification and response procedure: agent triaging a failed micropayment into rail degradation vs merchant contract weakness vs wallet insufficiency, with retry/switch/abort thresholds · Build a decision procedure or schema for: x402 payment failure cause classification and response procedure: agent triaging a failed micropayment into rail degradation vs merchant cont. Blunt decision procedure, not marketing.
Output
A structured decision procedure brief (prose and/or schema) classifying x402 payment failures into three root causes — rail degradation, merchant contract weakness, and wallet insufficiency — with specific retry, switch, and abort thresholds an autonomous agent can act on directly.
Example use cases
Triage a live payment failure
“One of my agent's x402 payments just failed mid-task. Walk me through how to classify the failure — rail degradation, bad merchant contract, or insufficient wallet funds — and tell me the thresholds for when to retry, switch providers, or just abort.”
Build payment error handling logic
“I'm building an autonomous agent that makes x402 micropayments and I need a blunt decision procedure it can follow when a payment fails, covering all three failure causes with clear retry and abort rules.”
Diagnose repeated micropayment failures
“My agent keeps hitting payment failures on the same x402 merchant. Give me a classification schema to determine whether this is a recurring rail issue, a problem with that merchant's contract, or my wallet running dry — and what action to take at each threshold.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/x402-payment-failure-cause-classification-and-re?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an autonomous agent needs a concrete, actionable triage procedure for x402 micropayment failures at runtime — particularly when distinguishing between infrastructure-level rail problems, merchant-side contract issues, and wallet balance shortfalls. Preferable over generic payment error docs when the agent needs machine-readable thresholds for retry/switch/abort decisions in a live x402 payment loop.
Side effects
- Payment required but wallet has insufficient USDC (HTTP 402 on the meta=0 call)
- Topic override not recognized, returns default x402 failure classification procedure
- LLM generation failure returns ok:false with error detail
- Slow response if generationSource is reasoning rather than deterministic
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-payment-failure-cause-classification-and-re",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "x402-payment-failure-cause-classification-and-re",
"provider": "K-2SO"
}
}Tags
x402
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