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ONE Engine Array Difference (Top 10)
x402
ONE Engine Array Difference (Top 10) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-02).
Returns the difference between two arrays — elements in the primary array not present in the comparison array — returning up to the top 10 results.
Price / call$0.03
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A JSON object containing an array of elements that appear in the primary `values` array but not in the `other` comparison array, limited to the top 10 results (paginated via offset).
Example use cases
New product SKUs not yet in catalog
“I have a list of incoming SKUs from a vendor and our existing catalog SKUs — find me all the vendor SKUs that don't already exist in our catalog, up to 10 results.”
Unread notification IDs filtering
“Here are all notification IDs the user received: [101, 102, 103, 104, 105] and here are the ones they already read: [102, 104]. Give me the unread ones.”
Missing feature flags between environments
“I have two lists of feature flags — one from staging and one from production. Which flags are in staging but not yet in production? Show me up to 10.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/array/difference/t10?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call set-difference computation on arrays of up to 1000 items without standing up your own infrastructure. Ideal for autonomous agents that need to compare two lists on-the-fly (e.g. filtering seen vs unseen IDs, removing blacklisted items) and want a paginated top-10 slice of results. Prefer this over local computation when the agent environment is stateless or constrained.
Side effects
- Primary `values` array exceeds 1000 items — request rejected
- Malformed or non-array input for `values` or `other` — validation error
- Payment not included or insufficient — HTTP 402 returned
- Empty `values` array — returns empty difference result
- Network timeout on Cloudflare Worker edge
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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