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Demandex Opportunity Detail
x402
Demandex Opportunity Detail is a paid API for AI agents from api.demandex.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Returns a full opportunity card with all score components, evidence quotes, and builder signals for a single market opportunity identified by id or slug
Price / call$0.05
Success—
StatusUnknown
How this service works
Paid ($0.05 USDC via x402). Returns one full opportunity card by ?id= or ?slug= (exactly one required, else a no-charge 400): all score components (freqScore, intensityScore, wtpScore), productAngle, summary, evidence[] (verbatim quotes with subreddit, upvotes, permalink), builderMomentum, firstSeen, lastSeen, signalCount, distinctAuthors. Compute-first / settle-after — you are not charged when the id/slug is missing, ambiguous, or not found. Response carries fetchedAt.
Output
A full opportunity card object including: all score components (freqScore, intensityScore, wtpScore), productAngle, summary, an evidence array of verbatim quotes with subreddit, upvotes, and permalink, builderMomentum, firstSeen, lastSeen, signalCount, distinctAuthors, and a fetchedAt timestamp. Costs $0.05 USDC per successful call; no charge on missing/ambiguous id or slug (400 response).
Example use cases
Example prompt
“Pull the full opportunity card for the Demandex opportunity with slug 'budget-meal-planning-app' — I want to see all the scores, the reddit evidence quotes, and the builder momentum signal.”
Technical details
Endpoint
GEThttps://api.demandex.dev/v1/opportunityWhen to prefer
Use this endpoint when you already know the id or slug of a specific opportunity and need the full detail card including all scoring sub-components, raw evidence quotes, and builder momentum data. Prefer this over the category listing endpoint when you need depth on one opportunity rather than a broad survey of many.
Side effects
- Missing both id and slug — returns 400 with no charge
- Both id and slug provided simultaneously — returns 400 with no charge
- Opportunity not found for given id or slug — returns 400 or 404 with no charge
- Invalid id or slug format — returns 400
- Payment failure — 402 if x402 settlement fails
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "ckxxxx",
"slug": "sony-wh1000xm5-replacement-headband",
"score": 87.4,
"title": "Sony WH-1000XM5 replacement headband",
"charged": true,
"summary": "Owners repeatedly seek an aftermarket replacement headband after the OEM band cracks.",
"category": "audio",
"evidence": [
{
"quote": "My XM5 headband cracked after 8 months and Sony wants $90 for a repair — where can I just buy the band?",
"upvotes": 214,
"permalink": "https://reddit.com/r/headphones/comments/abc123",
"subreddit": "headphones"
}
],
"lastSeen": "2026-07-18T10:00:00.000Z",
"wtpScore": 88,
"fetchedAt": "2026-07-18T11:45:00.000Z",
"firstSeen": "2026-06-01T00:00:00.000Z",
"freqScore": 90,
"signalCount": 34,
"productAngle": "Sell a durable aftermarket replacement headband for the Sony WH-1000XM5.",
"intensityScore": 82,
"builderMomentum": null,
"distinctAuthors": 29
}
}Tags
x402
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