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DemandEx Opportunities List
x402
DemandEx Opportunities List is a paid API for AI agents from api.demandex.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Returns up to 50 active demand opportunity cards in a given category, each with teaser metadata and a summary, filtered optionally by minimum score.
Price / call$0.02
Success—
StatusUnknown
How this service works
Paid ($0.02 USDC via x402). Returns up to 50 active opportunity cards in a category, each as a teaser ({ id, slug, title, category, score, signalCount, lastSeen }) plus its summary. Requires ?category=; ?minScore= optionally filters. A missing or unknown category returns a no-charge 400 that lists the valid categories; a valid category with no active cards yet (index still warming) returns a no-charge 503 corpus_warming instead of an empty charged list. Compute-first / settle-after — you are no…
Output
A list of up to 50 active opportunity cards, each containing id, slug, title, category, composite score (0-100), signal count, last seen timestamp, and a text summary. Returns a no-charge 400 with valid category list if the category is unknown, or a no-charge 503 corpus_warming if the index is still initializing for a valid category.
Example use cases
Example prompt
“Can you pull up the top active demand opportunities in the 'saas' category on DemandEx, filtering for anything with a score of at least 60?”
Technical details
Endpoint
GEThttps://api.demandex.dev/v1/opportunitiesWhen to prefer
Use this endpoint when you need a broad discovery sweep of up to 50 active demand opportunities within a known category, and want teaser-level data (score, signal count, summary) before drilling into full details. Prefer it over the single-card detail endpoint when you don't yet know which specific opportunity id or slug to retrieve. Ideal for ranking, filtering by score threshold, and building overview dashboards.
Side effects
- Missing or unknown category slug → no-charge HTTP 400 with list of valid categories
- Valid category with no active cards yet (index warming) → no-charge HTTP 503 with corpus_warming status
- minScore out of range (not 0-100) → validation error
- Network or upstream compute failure → 5xx error
- Payment not settled → request rejected before results returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"charged": true,
"category": "audio",
"fetchedAt": "2026-07-18T11:45:00.000Z",
"opportunities": [
{
"id": "ckxxxx",
"slug": "sony-wh1000xm5-replacement-headband",
"score": 87.4,
"title": "Sony WH-1000XM5 replacement headband",
"summary": "Owners repeatedly seek an aftermarket replacement headband after the OEM band cracks.",
"category": "audio",
"lastSeen": "2026-07-18T10:00:00.000Z",
"signalCount": 34
}
]
}
}Tags
x402
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