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Amazon Repeat-Purchase Momentum Comparator

See which ASINs gained or lost measured repeat-purchase momentum.

Amazon US

Included in the $9.00 Shelf Kit

Agent/API — $0.50
Review-first
Every output stays a draft. No credentials
No seller-account login required. Private delivery
Inputs expire after 24 hours. Clear recourse
Digital-service refund policy.

What you receive

  • ASIN-level changes in orders, unique customers, and reported repeat-customer share
  • Repeat-purchase revenue, revenue-share, and estimated revenue-per-repeat-equivalent changes
  • Separate strengthened, weakened, mixed, and insufficient-history queues
  • Per-period supplied repeat-revenue top-ASIN share and HHI
  • Explicit zero-denominator, rounded-percentage, and incomplete-coverage warnings

Who it is for

Brand-registered Amazon sellers, agencies, retention teams, and agents comparing seller-supplied Repeat Purchase report periods before a human investigates product, merchandising, or customer-experience context.

Delivery: usually a structured result, workbook, or ZIP depending on the tool.

How it stays safe

Friday performs arithmetic only on the aggregate Amazon Brand Analytics Repeat Purchase rows you supply. It reads no Amazon account, report, order, customer, address, message, review, or listing. Estimated repeat-customer equivalents multiply a reported fraction by unique customers and may be non-integer because the source percentage can be rounded. Supplied-row concentration is not necessarily the full catalog. Observed momentum does not prove retention, loyalty, incrementality, cause, or future demand. Friday does not publish listings and never identifies or contacts a customer, advertises, reprices, messages, or changes a seller account.

Synthetic sample

See the deliverable structure before buying

{
  "strengthened_count": 2,
  "weakened_count": 1,
  "mixed_or_flat_count": 0,
  "insufficient_history_count": 0,
  "top_asin_concentration_change_percentage_points": 11.1111,
  "repeat_revenue_hhi_change": 866.6666,
  "strengthened_queue_preview": [
    {
      "rank": 1,
      "asin": "B0NORTH001",
      "repeat_customers_change_percentage_points": 5.0,
      "repeat_purchase_revenue_delta": 500.0,
      "repeat_purchase_revenue_change_percentage_points": 5.0,
      "revenue_per_estimated_repeat_customer_delta": 5.56
    },
    {
      "rank": 2,
      "asin": "B0NORTH003",
      "repeat_customers_change_percentage_points": 2.0,
      "repeat_purchase_revenue_change_percentage_points": 2.0
    }
  ],
  "weakened_queue_preview": [
    {
      "rank": 1,
      "asin": "B0NORTH002",
      "repeat_customers_change_percentage_points": -2.0,
      "repeat_purchase_revenue_delta": -100.0,
      "repeat_purchase_revenue_change_percentage_points": -1.0
    }
  ],
  "publish_status": "draft_needs_review",
  "safety": "Aggregate seller-supplied report arithmetic only. No customer or order identity is accepted; estimates are labeled; momentum does not prove retention or cause; no customer is contacted and no listing is published."
}

This sample uses synthetic facts. Your output is generated only from the facts you submit.

Agent API and x402 details

POST /v1/amazon/brand-analytics/repeat-purchase-momentum

Exact x402 price: $0.50. Use the public OpenAPI schema and Base USDC payment flow. The response returns a private job URL and temporary token.

Open the API documentation →

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