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Agent-to-Merchant Post-Payment Feedback and Reputation Update Loop
x402
Agent-to-Merchant Post-Payment Feedback and Reputation Update Loop is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Returns a structured decision procedure for classifying x402 payment outcomes, computing merchant reputation deltas, and managing trust-tier updates with evidence retention and replay guards.
Price / call$0.002
Success—
StatusUnknown
How this service works
Decision procedure for an agent that just settled an x402 payment: classify the outcome into one of five classes (delivered-as-agreed, late, wrong deliverable, silent failure, hostile), compute the reputation delta for that merchant, apply allowlist downgrade and trust-tier thresholds, and retain the evidence that justifies each update. Includes kill criteria for ambiguous outcomes, a minimum-evidence rule before any negative delta is recorded, and a replay guard so the same failure is not
Output
A prose decision procedure brief ('brief' field) guiding the agent through outcome classification (one of five classes: delivered-as-agreed, late, wrong deliverable, silent failure, hostile), reputation delta computation, allowlist downgrade thresholds, minimum-evidence requirements before negative deltas are recorded, and a replay guard to prevent duplicate penalization. Also includes service metadata, generation source, and ISO-8601 timestamp.
Example use cases
Silent failure merchant downgrade
“A merchant I paid via x402 took my funds but never delivered anything — help me classify this as a silent failure, figure out the reputation delta, and decide if they should be demoted on my trust tier.”
Ambiguous late delivery outcome
“My agent settled an x402 payment and the deliverable arrived late but was technically correct — walk me through the outcome classification and whether a negative reputation delta should be recorded given the ambiguity.”
Replay guard for repeated failure
“I want to make sure my agent doesn't penalize the same merchant twice for the same x402 failure — run me through the replay guard logic and what evidence I need to retain to justify the original update.”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/agent-to-merchant-post-payment-feedback-and-repuWhen to prefer
Choose this endpoint when your agent has just settled an x402 payment and needs a structured, auditable procedure for updating merchant reputation — especially when you need built-in safeguards like minimum-evidence rules, replay guards, and tiered outcome classification. Prefer this over ad-hoc logic when operating at scale across multiple merchants where consistent trust-tier management matters.
Side effects
- Missing or invalid 'input' object returns a schema validation error
- Insufficient evidence to record a negative delta triggers kill criteria without update
- Ambiguous outcomes may return a procedure without a definitive classification
- Service unavailability returns a non-200 response with no decision brief
- Replayed failure event detected — procedure returns no-op to prevent double-penalty
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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