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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, $0.01/call, status unknown (last checked 2026-10-02).
Computes the intersection of two arrays, returning elements common to both input arrays.
Price / call$0.01
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. The result represents the mathematical set intersection of the two inputs.
Example use cases
Find shared user IDs across datasets
“I have two lists of user IDs — one from our email subscribers [101, 202, 303, 404, 505] and one from our paying customers [303, 404, 606, 707]. Can you find which user IDs appear in both lists?”
Detect overlapping product tags
“I have a set of tags from Product A: ['sale', 'electronics', 'featured', 'clearance'] and tags from Product B: ['featured', 'new', 'electronics', 'bundle']. What tags do both products share?”
Match common skills between candidates
“Compare these two skill lists and tell me what skills overlap: candidate one has ['Python', 'SQL', 'Docker', 'Kubernetes'] and candidate two has ['SQL', 'Docker', 'React', 'TypeScript'].”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/array/intersection/t8?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, low-cost ($0.01 USDC) server-side array intersection without spinning up compute infrastructure. Ideal for AI agents that need to compare two lists on-the-fly within a workflow, especially when the arrays are up to 1000 items and you want a pay-per-call model rather than a persistent service.
Side effects
- Missing required 'values' field returns a 400 error
- Array exceeds 1000-item limit causing rejection
- Payment not included or insufficient USDC causes 402 payment required response
- Non-array value passed for 'values' or 'other' causes schema validation 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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