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ONE Engine Array Intersection
x402
ONE Engine Array Intersection is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).
Computes the intersection of two arrays, returning elements common to both input arrays.
Price / call$0.004
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns a JSON object containing the array of elements that are present in both the primary 'values' array and the 'other' comparison array. Supports pagination via offset and size parameters for large result sets.
Example use cases
Shared product tag filtering
“I have a list of tags on this product: ["electronics", "sale", "wireless", "portable"] and a list of tags the user has favorited: ["sale", "portable", "outdoor"]. Which tags appear in both lists?”
Common user permission check
“Given these two permission sets — user permissions: ["read", "write", "comment"] and required permissions: ["write", "admin", "comment"] — tell me which permissions the user actually has from the required list.”
Overlapping audience segments
“I have segment A with user IDs [101, 202, 303, 404, 505] and segment B with [303, 404, 606, 707]. Which user IDs appear in both segments?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/array/intersection/t6?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cheap, fast, pay-per-call array intersection computation without standing up your own infrastructure. Ideal for autonomous agents on Base that need set-theoretic operations on moderate-sized arrays (up to 1000 items) and want to pay micro-amounts in USDC per call rather than subscribe to a service.
Side effects
- Missing required 'values' field returns a 400 error
- Arrays exceeding 1000 items are rejected
- Payment not included or insufficient USDC triggers a 402 Payment Required response
- Malformed JSON body causes parsing error
- Empty intersection returns an empty array (not an error)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| size | integer | |
| other | array | Optional comparison array |
| offset | integer | |
| valuesrequired | array | JSON array with at most 1000 items |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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