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Array Intersection (T9)
x402
Array Intersection (T9) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.018/call, status unknown (last checked 2026-10-02).
Computes the intersection of two arrays, returning elements common to both input arrays.
Price / call$0.018
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 appear in both the primary `values` array and the `other` comparison array, representing the set intersection. May support pagination via `size` and `offset` parameters to limit result size.
Example use cases
Matching user tags across datasets
“I have two lists of user interest tags — one from their profile and one from their recent activity. Can you find which tags appear in both lists? Here they are: profile tags are ['travel','food','music','sports','tech'] and activity tags are ['music','gaming','travel','art'].”
Filtering product SKUs in common
“I need to find which product SKUs are available in both my warehouse inventory and my online store catalog. Warehouse list: ['SKU001','SKU002','SKU003','SKU005'] and store list: ['SKU002','SKU003','SKU004','SKU006'].”
Finding shared permissions between roles
“I have two permission sets — one for the editor role and one for the reviewer role — and I want to know which permissions they share. Editor permissions: ['read','write','publish','delete'] and reviewer permissions: ['read','comment','publish','approve'].”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/array/intersection/t9?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, pay-per-call array intersection with no setup or infrastructure required, especially within agent pipelines using x402/Base micropayments. Ideal for lightweight set operations on arrays up to 1000 items where spinning up custom code is overkill.
Side effects
- Missing required `values` field returns validation error
- Array exceeds 1000-item limit causes rejection
- Malformed JSON array in input causes parse error
- Payment failure or insufficient USDC balance returns 402
- Network timeout on large array processing
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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