Demandex Gauge

x402

Demandex Gauge is a paid API for AI agents from api.demandex.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-29).

Gauges market demand strength for a product or query by scoring it against an opportunity corpus

Price / call$0.03

Seller volume →—

Success—

StatusUnknown

How this service works

Community-mined e-commerce demand intelligence for AI agents — scored, evidence-backed opportunity cards mined from Reddit. Pay per call in USDC via x402 on Base. No signup, no API keys.

Output

Returns a demand gauge result containing a score or signal indicating how strong and active market demand is for the queried product or topic, benchmarked against Demandex's opportunity corpus.

Example use cases

Example prompt

“Can you gauge how strong the market demand is for 'ergonomic standing desk converters' using Demandex? Scope it to the office-furniture category.”

Technical details

Endpoint

POSThttps://api.demandex.dev/v1/gauge?utm_source=zero.xyz

When to prefer

Use this endpoint when you need to quantitatively gauge how much market demand exists for a specific product concept, niche, or keyword before investing further. Prefer it over browsing trend sites when you need a structured, scored demand signal from a curated opportunity corpus, especially as a precursor to fetching full opportunity cards via sibling endpoints.

Side effects

Query string shorter than 3 or longer than 200 characters returns a validation error
Invalid category slug returns an error or empty corpus match
Payment not included or insufficient USDC causes a 402 Payment Required response
Malformed request body (wrong bodyType or missing required fields) returns a 400 error
Query too generic may return a low-confidence or zero demand score

Input

Schema · Request body

Field	Type	Description
query	string	The product/demand query to gauge (3..200 chars). Required.
category	string	Optional category slug to scope the corpus match.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "cache": "miss",
    "query": "sony xm5 replacement headband",
    "charged": true,
    "fetchedAt": "2026-07-18T11:45:00.000Z",
    "rationale": "Frequent owner complaints about the OEM headband cracking, with buyers actively hunting for aftermarket replacements.",
    "topEvidence": [
      {
        "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"
      }
    ],
    "verdictScore": 84,
    "demandTemperature": "hot",
    "relatedOpportunities": [
      {
        "slug": "sony-wh1000xm5-replacement-headband",
        "score": 87.4
      }
    ]
  }
}

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