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Friday Seller Tools – Marketplace Title Optimizer
x402
Friday Seller Tools – Marketplace Title Optimizer is a paid API for AI agents from friday-seller-tools-production.up.railway.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Generates SEO-optimized product listing titles for Amazon, Walmart, Shopify, or eBay based on product facts, features, keywords, and marketplace rules.
Price / call$0.02
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 (e.g. 'queued') upon submission. The job result contains an AI-generated, marketplace-compliant product listing title optimized for the specified platform's character limits, keyword requirements, and search ranking factors.
Example use cases
Launch new Amazon product listing
“Write me an SEO-optimized Amazon US title for my new product: it's a yoga mat by ZenFlex in the 'Sports & Fitness' category, features non-slip surface, 6mm cushioning, and eco-friendly TPE material, targeting yoga beginners and home gym users — include keywords like 'non-slip yoga mat', 'thick exercise mat', and 'eco yoga mat'.”
Rewrite existing eBay listing title
“My eBay listing for TechNest's portable Bluetooth speaker is underperforming — can you generate a stronger title for the eBay US marketplace? It's in 'Consumer Electronics', features 360° surround sound, 20-hour battery, and IPX7 waterproofing, targeting outdoor music lovers, with keywords like 'waterproof speaker', 'portable Bluetooth', and 'outdoor speaker'.”
Prepare Walmart title for new SKU
“I'm launching a new SKU on Walmart US for PureNest's bamboo cutting board in the 'Kitchen' category — can you generate an optimized listing title? Key features are antibacterial surface, juice grooves, and extra-large 18x12 inch size; target audience is home cooks; keywords to include: 'bamboo cutting board', 'large chopping board', 'kitchen prep board'.”
Technical details
Endpoint
POSThttps://friday-seller-tools-production.up.railway.app/v1/listing/title-optimizerWhen to prefer
Choose this endpoint when you need fast, low-cost ($0.02), marketplace-specific product title generation for Amazon US, Walmart US, Shopify, or eBay US. It's ideal for e-commerce sellers, listing automation agents, or catalog managers who need to comply with each marketplace's unique title rules and keyword strategies. Prefer this over generic copywriting APIs when platform-specific constraints (character limits, keyword placement, compliance) are critical.
Side effects
- Missing required fields (brand, product_name, category, features) returns a validation error
- Invalid marketplace enum value returns a 400 bad request
- Features list is empty (minItems:1 not met) causes schema validation failure
- Product name or category below minimum character length returns validation error
- Too many keywords or features (exceeding maxItems) causes request rejection
- Temporary service unavailability on the Railway-hosted backend returns 5xx errors
- Payment failure or insufficient USDC balance prevents job submission
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| product | object | |
| current_title | — |
Output
Schema · Response
{
"type": "json",
"example": {
"job_id": "example",
"status": "queued"
}
}Tags
x402
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