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ONE Engine Array Unique Filter
x402
ONE Engine Array Unique Filter is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0065/call, status unknown (last checked 2026-10-02).
Returns only the unique (deduplicated) elements from a JSON array, with optional offset, size, and comparison array support.
Price / call$0.0065
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 the deduplicated array of unique elements extracted from the input values array, optionally filtered by offset and limited by size, with optional comparison against a second array.
Example use cases
Deduplicate customer ID list
“I have a list of customer IDs pulled from two sources and there are a lot of repeats — can you remove the duplicates and give me just the unique IDs? Here's the full list: [1001, 1002, 1001, 1003, 1004, 1002, 1005].”
Filter unique tags before publishing
“Before I save these article tags to the database, can you strip out any duplicates? The tag list is ['javascript','web','javascript','typescript','web','nodejs'] and I want just the unique ones.”
Compare arrays and extract unique values
“I have two arrays of email addresses and I want to find the unique values across the first list — can you deduplicate ['a@x.com','b@x.com','a@x.com','c@x.com'] and optionally cross-reference with ['b@x.com','d@x.com']?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/array/unique/t7?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, cheap, serverless deduplication of a JSON array (up to 1000 items) without standing up your own compute — especially useful in autonomous agent pipelines on Base where x402 micropayments are already supported. Prefer it over custom code when you want a stateless, pay-per-call utility that integrates seamlessly into agentic workflows.
Side effects
- Array exceeds 1000 item limit — request rejected
- Malformed JSON array in values field — validation error
- Payment failure via x402 — 402 response, call not processed
- Missing required 'values' field — schema validation error
- Non-array value passed as 'values' — type 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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