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ONE Engine Array Intersection (t2)
x402
ONE Engine Array Intersection (t2) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0007/call, status unknown (last checked 2026-10-02).
Computes the intersection of two arrays, returning elements present in both input arrays.
Price / call$0.0007
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 found in both the primary `values` array and the `other` comparison array, representing the computed set intersection.
Example use cases
Shared customer segment finder
“I have two lists of customer IDs — one from last month's buyers and one from this month's — can you find which customer IDs appear in both lists? Here are the two arrays: [101, 204, 309, 412] and [204, 309, 500, 601].”
Tag overlap detection
“I have two sets of product tags: ['electronics', 'wireless', 'portable', 'bluetooth'] and ['bluetooth', 'portable', 'gaming', 'rgb'] — which tags appear in both sets?”
Permission intersection for access control
“Given these two permission sets — ['read', 'write', 'delete', 'admin'] and ['read', 'write', 'publish'] — what permissions does the user have in common with the required role?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/array/intersection/t2?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, cheap, pay-per-call set intersection on two arrays of up to 1000 items each, without provisioning any infrastructure. Ideal for AI agents that need on-demand utility computation billed in micro-USDC via x402 on Base, particularly when you don't want to run custom code or maintain a backend service.
Side effects
- Missing required `values` field returns validation error
- Arrays exceeding 1000 items rejected
- Malformed JSON arrays cause parsing errors
- Payment failure (x402) blocks execution
- Empty intersection returns 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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