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Parallax Co-Purchase Analysis
x402
Parallax Co-Purchase Analysis is a paid API for AI agents from parallax402.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Returns co-purchase analytics for a single x402 seller: how many of its buyers also pay other sellers, the top 10 co-sellers by shared buyers, and the lift of each association.
Price / call$0.05
Success—
StatusUnknown
How this service works
Co-purchase for one seller over the indexed window: how many of its buyers also pay someone else, the top ten co-sellers by shared buyers, and the lift of each association.
Output
A JSON envelope containing: as_of timestamp, frame, coverage, method, attribution, tier, and window_days metadata, plus a fact object with the seller's total buyer count, multi_seller_share (fraction of buyers who pay at least one other seller), and a ranked list of up to 10 co-sellers each with shared_buyer count and lift score.
Example use cases
Competitor cross-sell discovery for a merchant
“I run the x402 seller at hostname shop.mystore.com — can you show me which other sellers my buyers are also paying, and what the lift looks like for the top ones?”
Partnership targeting based on buyer overlap
“Pull the basket analysis for the seller with payTo address 0xDEF456... and tell me which top co-sellers share the most buyers — I'm trying to find good partnership candidates.”
Market positioning audit for an x402 seller
“What fraction of buyers for the seller at 0x789GHI... are multi-seller payers, and who are the top 10 sellers they overlap with most heavily?”
Technical details
Endpoint
GEThttps://parallax402.com/v1/basketWhen to prefer
Use this endpoint when you need quantified market basket / co-purchase data grounded in actual x402 settlement graph transactions for a specific seller — not estimates or surveys. Prefer it over generic analytics when you need lift-scored, ranked co-seller associations backed by on-chain payment data with explicit coverage and freshness metadata.
Side effects
- Missing or unrecognized seller address/hostname returns an error or empty result
- Seller has too few buyers within the indexed window for meaningful co-purchase statistics
- Rate limiting or payment failure over x402 protocol returns 402 or 429
- Malformed seller parameter (not a valid payTo address or hostname) causes validation failure
- Seller exists but has no co-purchasing signal in the current indexed window
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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