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Listing Roast Quick Score
x402
Listing Roast Quick Score is a paid API for AI agents from listing-roast-x402-service-production.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns a quick numeric score and verdict for a marketplace listing, flagging the most critical fix for $0.001 per call.
Price / call$0.001
Success—
StatusUnknown
How this service works
Listing Roast Quick Score x402: $0.001 GET marketplace listing score on the indexed /api/listing-roast URL. POST the same URL for the $0.01 full roast.
Output
Returns a numeric score string, a verdict summary, a set of checked signals with pass/fail indicators, the single most impactful first fix to make, a next step recommendation, and an endpoint URL to upgrade to the full $0.01 roast for deeper analysis.
Example use cases
Example prompt
“Give my marketplace listing a quick roast score — here's the listing text: 'Handmade ceramic mug, 12oz, dishwasher safe, perfect gift', the current price is $18, my target buyer is gift shoppers, and my goal is to increase conversions.”
Technical details
Endpoint
GEThttps://listing-roast-x402-service-production.up.railway.app/api/listing-roastWhen to prefer
Use this endpoint when you need a fast, cheap ($0.001) top-level quality score and a single actionable fix for a marketplace listing before committing to a full deep-dive roast. Ideal for batch pre-screening many listings or quick sanity checks.
Side effects
- Missing required listingText query parameter returns an error or empty response
- Malformed query parameters may yield a low-confidence score
- Payment failure via x402 protocol blocks the request entirely
- Rate limiting or service downtime on Railway infrastructure
- Very short or vague listing text may produce a low-signal score
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"goal": "increase conversions",
"agentName": "qa-test-agent",
"listingText": "Handmade ceramic mug, 12oz, dishwasher safe, microwave safe, perfect gift for coffee lovers",
"targetBuyer": "gift shoppers",
"currentPrice": "$18.99",
"currentCheckoutPath": "/checkout"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"price": "$0.001",
"score": "2/5",
"service": "Listing Roast x402",
"verdict": "fix_before_paid_push",
"endpoint": "listing-roast-quick-score",
"firstFix": "Name the buyer directly. A buyer agent should know whether this is for x402 builders, MCP builders, API sellers, or another narrow group.",
"nextStep": "This GET route keeps the indexed /api/listing-roast URL payable at the lowest price. Use POST /api/listing-roast for the full rewrite and launch recommendation.",
"cashRegister": {
"signals": {
"mcpViews": 0,
"llmsViews": 1,
"sampleViews": 1,
"schemaViews": 0,
"builderViews": 0,
"openApiViews": 2,
"examplesViews": 0,
"homepageViews": 10,
"invalidRequests": 0,
"unpaidChallenges": 93,
"commandCopyClicks": 0,
"x402ManifestViews": 0,
"builderCommandBuilds": 0,
"emptyDiscoveryProbes": 72,
"validUnpaidChallenges": 21,
"pingValidUnpaidChallenges": 1,
"roastValidUnpaidChallenges": 0,
"scoreValidUnpaidChallenges": 0,
"instantScoreValidUnpaidChallenges": 19,
"discoveryAuditValidUnpaidChallenges": 1
},
"lastPaidAt": "2026-06-18T06:43:22.052Z",
"lastSignalAt": "2026-06-18T06:43:22.052Z",
"firstSignalAt": "2026-06-18T01:50:06.967Z",
"paidCompletions": 2,
"importedBaseline": {
"source": "env",
"lastPaidAt": "2026-06-13T02:20:21.062Z",
"paidCompletions": 1,
"estimatedGrossRevenueUsd": "0.001"
},
"x402PingCompletions": 0,
"listingRoastCompletions": 0,
"listingScoreCompletions": 2,
"estimatedGrossRevenueUsd": "0.002",
"x402PingEstimatedRevenueUsd": "$0.00",
"x402DiscoveryAuditCompletions": 0,
"listingRoastEstimatedRevenueUsd": "$0.00",
"listingScoreEstimatedRevenueUsd": "$0.002",
"x402DiscoveryAuditEstimatedRevenueUsd": "$0.00"
},
"checkedSignals": {
"buyer": false,
"price": true,
"output": false,
"example": false,
"checkout": true
},
"upgradeEndpoint": "/api/listing-roast"
}Tags
x402
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