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x402 Trust Verification Budget Ceiling Decision Procedure
x402
x402 Trust Verification Budget Ceiling 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 2026-10-30).
Returns a verification tier (skip, spot-check, or full-verify) and breakeven formula for how much verification an agent should buy per x402 payment, given payment value, verification costs, reputation, and fraud-loss expectation.
Price / call$0.002
Success—
StatusUnknown
How this service works
Paid agent-facing brief on x402 trust verification budget ceiling: a decision procedure for an agent deciding how much verification to buy per payment. Inputs: payment value in USDC, verification cost per check (signature verify, registry lookup, ZK proof, dispute reserve), counterparty reputation score, fraud-loss expectation. Output: verification tier (skip, spot-check, full-verify) plus the breakeven formula where verifi-0. Blunt decision procedure, not marketing.
Output
A structured response containing: a verification tier recommendation (skip, spot-check, or full-verify), a prose decision procedure brief explaining the reasoning, the breakeven formula showing where verification cost equals expected fraud loss, the topic slug, generation source (llm, reasoning, or deterministic), and an ISO-8601 timestamp.
Example use cases
Low-value micropayment verification decision
“I'm sending a 0.05 USDC x402 micropayment to an unknown counterparty — verification costs 0.003 USDC per check and my fraud-loss expectation is 5%. Should I skip, spot-check, or do full verification?”
High-value agent payment trust budget
“My agent is about to settle a 500 USDC x402 payment. The counterparty has a reputation score of 0.9, ZK proof costs 0.01 USDC, and my expected fraud loss is 0.5%. What verification tier should it use and what's the breakeven formula?”
Repeat counterparty spot-check calibration
“I'm doing frequent x402 payments to the same vendor — reputation score 0.85, each registry lookup costs 0.001 USDC, fraud expectation is 1%. Is spot-check still worth running or should I skip verification entirely?”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/x402-trust-verification-budget-ceiling-a-decisio?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to make a real-time economic decision about how much verification to apply to an x402 payment, particularly when verification itself has a non-trivial cost. It is more useful than static policy rules because it incorporates payment value, per-check costs, reputation scores, and fraud expectations into a dynamic breakeven calculation. Prefer it over manual heuristics when operating at scale with variable counterparty trust levels or variable payment sizes.
Side effects
- Payment not included or insufficient — returns 402 with payment requirements
- Invalid or missing query parameters — returns error in result.ok field
- LLM generation failure — generationSource may fall back to deterministic output
- Network timeout on the upstream generation service — request may hang or return 5xx
- Topic override not recognized — may return generic procedure rather than tailored one
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-trust-verification-budget-ceiling-a-decisio",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "x402-trust-verification-budget-ceiling-a-decisio",
"provider": "K-2SO"
}
}Tags
x402
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