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SaaS Subscription Proration Audit
x402
SaaS Subscription Proration Audit is a paid API for AI agents from rooke-token-risk-pilot.rookepoole.workers.dev, paid per call via x402, $9/call, status unknown (last checked 2026-10-12).
Verifies that a SaaS subscription mid-cycle proration invoice matches the mathematically expected credits and charges given the before/after plan items and timing.
Price / call$9
Success—
StatusUnknown
How this service works
Public static preview plus paid token controls, risk consensus, AI security, webhook reliability, developer security, schedule risk, decision analysis, API release compatibility, accounts-payable reconciliation, e-commerce return eligibility, SaaS subscription-proration, sales-commission reconciliation, parcel-charge reconciliation, SLA service-credit reconciliation, advertising spend-and-fee audit, contract-renewal audit, workforce timecard reconciliation, hotel booking-commission reconciliation, and warehouse cycle-count adjustment reconciliation products for autonomous agents.
Output
Returns a structured audit report with a verdict (e.g. MATCHED_WITHIN_TOLERANCE or a mismatch code), the expected vs. observed charge, credit, and net amounts in minor currency units, item-level variances, any risk flags, evidence gaps (such as unverified caller-supplied facts), claim boundary flags, individual calculated proration lines, a recommended disposition, and a SHA-256 report hash for audit trail purposes.
Example use cases
Mid-cycle seat upgrade charge check
“We upgraded a customer from 5 seats to 10 seats on March 15th mid-billing-period. The invoice shows a charge of $103.23 and credit of $51.61 — can you verify the proration math is correct? Subscription is sub_upgrade_99, billing period March 1–31, proration behavior CREATE_PRORATIONS, tolerance 2 cents.”
Downgrade credit reconciliation
“A customer downgraded their plan on the 20th of the month and we issued a proration credit on invoice in_credit_77. The subscription sub_down_77 ran from July 1 to July 31, and the credit observed was $28.40 with no new charge. Can you audit whether that credit amount is right given the before and after plan items?”
Automated billing anomaly detection
“Every time we process a subscription change, I want to automatically check whether the resulting proration invoice matches what we expect. For subscription sub_auto_55, billing period 2024-05-01 to 2024-05-31, change on 2024-05-10, before item was price_starter qty 3 at 5000 minor units, after item is price_growth qty 3 at 8000 minor units, CREATE_PRORATIONS, observed charge 13548 and credit 4516, tolerance 5 minor units — is this correct?”
Technical details
Endpoint
POSThttps://rooke-token-risk-pilot.rookepoole.workers.dev/v1/x402/subscription-proration-audit?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a deterministic, math-grounded audit of a SaaS subscription proration invoice — especially for mid-cycle plan upgrades, downgrades, or quantity changes — and want a structured verdict with variance breakdown, risk flags, and a tamper-evident report hash. Prefer this over manual calculation or generic reconciliation tools when you need per-item proration line visibility and a machine-readable recommended disposition suitable for autonomous finance workflows.
Side effects
- Invalid or missing required fields (subscriptionId, billingPeriodStart, billingPeriodEnd, etc.) return a 400 validation error
- Currency code not matching ISO 4217 three-letter format causes rejection
- billingPeriodEnd before billingPeriodStart causes a logic error
- More than 200 before or after items triggers a schema violation
- Payment of $9 USDC via x402 required — missing or failed payment returns 402
- Caller-supplied facts are not independently verified, so CALLER_SUPPLIED_SUBSCRIPTION_AND_INVOICE_FACTS_NOT_AUTHENTICATED evidence gap is always present
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| policy | object | |
| invoice | object | |
| subscription | object |
Output
Schema · Response
{
"type": "json",
"example": {
"timing": {
"periodMilliseconds": 2678400000,
"remainingMilliseconds": 1382400000
},
"summary": {
"toleranceMinor": 1,
"changedItemCount": 1,
"latestInvoicePaid": true,
"unchangedItemCount": 0
},
"verdict": "MATCHED_WITHIN_TOLERANCE",
"currency": "USD",
"expected": {
"netMinor": 5162,
"chargeMinor": 10323,
"creditMinor": 5161
},
"observed": {
"netMinor": 5162,
"chargeMinor": 10323,
"creditMinor": 5161
},
"invoiceId": "in_42",
"riskFlags": [],
"variances": {
"netMinor": 0,
"chargeMinor": 0,
"creditMinor": 0,
"observedArithmeticMinor": 0
},
"reportHash": "sha256-hex",
"evidenceGaps": [
"CALLER_SUPPLIED_SUBSCRIPTION_AND_INVOICE_FACTS_NOT_AUTHENTICATED"
],
"claimBoundary": {
"chargeAttempted": false,
"invoiceModified": false,
"billingPlatformStateVerified": false
},
"schemaVersion": "SUBSCRIPTION_PRORATION_AUDIT_V1",
"subscriptionId": "sub_42",
"calculatedLines": [],
"prorationBehavior": "CREATE_PRORATIONS",
"requestCommitment": "sha256-hex",
"calculatedIfEnabled": {
"netMinor": 5162,
"chargeMinor": 10323,
"creditMinor": 5161
},
"recommendedDisposition": "MATCHED_NO_ACTION"
}
}Tags
x402
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