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Competitor Listing Change Monitor Spec

Turn two observed snapshots into a factual change report and repeatable watch plan.

Amazon USWalmart USShopifyeBay US

Included in the $9.00 Shelf Kit

Agent/API — $0.25
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

  • Price, rating, review-count, and availability deltas
  • Title, bullet, and description change signals
  • Unchanged and unavailable field lists
  • Daily, weekly, or monthly watch specification
  • Next planned review date and method notes

Who it is for

Sellers, agencies, and agents converting manually captured competitor observations into a reviewable change log and future collection checklist.

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

How it stays safe

Friday compares only the two snapshots you supply as untrusted data. It fetches no competitor page, runs no background monitor, sends no alert, and accesses no seller account. The report shows observed differences without inferring cause, trend, demand, or recommended action, and it does not publish listings or change prices.

Synthetic sample

See the deliverable structure before buying

{
  "publish_status": "draft_needs_review",
  "changes": [
    {
      "field": "title",
      "change_type": "changed",
      "summary": "Title text changed; normalized character count changed from 48 to 55."
    },
    {
      "field": "price_usd",
      "change_type": "decreased",
      "summary": "Observed price decreased from $24.99 to $22.99 (-8.0%).",
      "numeric_delta": -2.0
    },
    {
      "field": "review_count",
      "change_type": "increased",
      "summary": "Observed review count increased from 1250 to 1278.",
      "numeric_delta": 28
    }
  ],
  "unchanged_fields": [
    "availability"
  ],
  "next_planned_review": "2026-07-15",
  "monitoring_spec": "Weekly field checks with explicit triggers; no live fetch or alert is performed",
  "safety": "Only supplied snapshots are compared; no page, account, history, or cause is accessed or inferred, and no listing or price is changed."
}

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

Agent API and x402 details

POST /v1/competitors/change-monitor-spec

Exact x402 price: $0.25. 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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