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Friday Seller Tools – Amazon FBA Fee Discrepancy Audit
x402
Friday Seller Tools – Amazon FBA Fee Discrepancy Audit is a paid API for AI agents from friday-seller-tools-production.up.railway.app, paid per call via x402, $1/call, status unknown (last checked 2026-09-15).
Audits Amazon FBA seller accounts to identify fee discrepancies, overcharges, and reimbursement opportunities.
Price / call$1
Success—
StatusUnknown
How this service works
Instant, low-cost Amazon, Walmart, Shopify, and eBay listing, upload-preparation, advertising, and image-brief deliverables.
Output
Returns a job_id and status (initially 'queued'), indicating the audit has been submitted for asynchronous processing. The completed job will surface a structured report detailing identified fee discrepancies, overcharge amounts by category, and actionable reimbursement opportunities against Amazon FBA charges.
Example use cases
Monthly FBA overcharge recovery
“Run an FBA fee discrepancy audit for my Amazon seller account for the last 90 days — I want to know if Amazon has been miscalculating my fulfillment fees and how much I'm owed back.”
New ASIN fee validation
“I just launched a new product on Amazon FBA and I want to audit the fees being charged against my expected fee structure — can you check for any discrepancies on my recent shipments?”
Pre-accountant fee reconciliation
“Before I hand off my books to my accountant, can you run an FBA fee discrepancy audit on my Amazon account so we can identify any overcharges or errors to dispute with Amazon?”
Technical details
Endpoint
POSThttps://friday-seller-tools-production.up.railway.app/v1/amazon/fba/fee-discrepancy-auditWhen to prefer
Choose this endpoint when you need to proactively identify Amazon FBA fee overcharges and reimbursement opportunities at low cost ($1 per audit). It is best suited for Amazon sellers who want to reconcile FBA fees, prepare for accounting, or routinely audit fulfillment charges without building in-house tooling. Prefer this over generic accounting tools when the specific goal is Amazon FBA fee discrepancy detection and reimbursement identification.
Side effects
- Missing or invalid Amazon seller credentials returns an authentication error
- Malformed or incomplete order/shipment data causes audit to fail during processing
- Rate limiting or quota exhaustion from Amazon data retrieval delays or fails the job
- Job times out if the account has an unusually large volume of transactions
- No discrepancies found returns an empty result set, which may be mistaken for an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| records | array | |
| marketplace | string | |
| weight_unit | string | |
| report_label | string | |
| currency_code | string | |
| dimension_unit | string | |
| weight_tolerance_pct | number | |
| dimension_tolerance_pct | number |
Output
Schema · Response
{
"type": "json",
"example": {
"job_id": "example",
"status": "queued"
}
}Tags
x402
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