# Friday Seller Tools – Marketplace Claim Check

> Friday Seller Tools – Marketplace Claim Check is a paid API for AI agents from friday-seller-tools-production.up.railway.app, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Analyzes product text for marketplace compliance, flagging unverified or forbidden claims for Amazon, Walmart, Shopify, or eBay listings.

## Facts

- Endpoint: POST https://friday-seller-tools-production.up.railway.app/v1/listing/claim-check
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/friday-seller-tools-marketplace-claim-check-e653adfa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dF7oE_v8_6N4kbU4twcre

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability friday-seller-tools-marketplace-claim-check-e653adfa -d '<json body>'
```

Example prompt: Can you run a claim check on this Amazon product listing text and flag any forbidden or unverified claims? The text is: 'Our supplement boosts immunity by 50%, cures seasonal allergies, and is FDA-approved.' — forbidden claims include 'cures' and 'FDA-approved', and verified claims include 'boosts immunity'.

## When to prefer this

Choose this endpoint when you need to pre-screen product listing text for marketplace policy compliance before uploading, especially when you have known forbidden or verified claim sets to check against. It is ideal for e-commerce sellers, content operations teams, or brand managers who need asynchronous, low-cost automated compliance auditing across Amazon, Walmart, Shopify, or eBay — rather than manual review or general-purpose text analysis tools.

## Known failure modes

- Missing required 'marketplace' enum value — returns validation error
- Text field empty or exceeds 20,000 character limit — returns 400 bad request
- Invalid marketplace value not in allowed enum — returns schema validation error
- Too many items in verified_claims or forbidden_claims arrays (>100 each) — returns validation error
- Service unavailable on Railway deployment — returns 5xx error

## 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 a status field (e.g. 'queued') indicating the claim-check job has been accepted for asynchronous processing. The agent should poll or retrieve results using the returned job_id from a companion endpoint.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "title": "Text",
   "maxLength": 20000,
   "minLength": 1
  },
  "marketplace": {
   "enum": [
    "amazon_us",
    "walmart_us",
    "shopify",
    "ebay_us"
   ],
   "type": "string",
   "title": "Marketplace"
  },
  "verified_claims": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 500,
    "minLength": 1
   },
   "title": "Verified Claims",
   "maxItems": 100
  },
  "forbidden_claims": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 500,
    "minLength": 1
   },
   "title": "Forbidden Claims",
   "maxItems": 100
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "job_id": "example",
  "status": "queued"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/friday-seller-tools-marketplace-claim-check-e653adfa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from friday-seller-tools-production.up.railway.app](https://www.zero.xyz/host/friday-seller-tools-production.up.railway.app/llms.txt)