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Friday Seller Tools – Keyword Gap Analysis
x402
Friday Seller Tools – Keyword Gap Analysis is a paid API for AI agents from friday-seller-tools-production.up.railway.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).
Identifies keyword gaps between a seller's current marketplace listings and competitor listings to surface missing high-value search terms.
Price / call$0.25
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 queued status immediately; the completed result includes a structured list of keywords present in competitor listings but absent from the seller's current listing, typically annotated with search volume or relevance signals to prioritize which gaps to close first.
Example use cases
Amazon listing keyword coverage audit
“I just launched a new yoga mat on Amazon with ASIN B08ABC1234 — can you find all the keywords my top 3 competitors are using that my listing doesn't have yet?”
Walmart seller visibility improvement
“My Walmart listing for a portable blender is underperforming — analyze the keyword gap between my listing and the top-ranking competitors so I can figure out which search terms I need to add.”
eBay listing optimization before peak season
“Before the holiday rush, I want to know what keywords I'm missing on my eBay listing for noise-canceling headphones compared to the top sellers — can you run a keyword gap report?”
Technical details
Endpoint
POSThttps://friday-seller-tools-production.up.railway.app/v1/listings/keyword-gapWhen to prefer
Choose this endpoint when a seller needs to systematically discover which search terms their marketplace listing is failing to target compared to competitive listings — especially useful before relaunching a listing, running a PPC campaign, or optimizing for a seasonal push on Amazon, Walmart, Shopify, or eBay at a very low per-call cost.
Side effects
- Invalid or missing ASIN/product identifier returns a 400 error
- Unsupported marketplace type causes validation failure
- Job may remain in 'queued' status if analysis queue is backed up
- Competitor data unavailable for niche products yields sparse gap report
- Payment failure via x402 protocol prevents job creation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| marketplace | string | |
| ignore_terms | array | |
| your_listing | object | |
| max_gap_terms | integer | |
| include_phrases | boolean | |
| competitor_brands | array | |
| competitor_listings | array |
Output
Schema · Response
{
"type": "json",
"example": {
"job_id": "example",
"status": "queued"
}
}Tags
x402
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