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ONE Engine Array Set Pack (Tier 2)
x402
ONE Engine Array Set Pack (Tier 2) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0009/call, status unknown (last checked 2026-10-02).
Computes set operations (such as union, intersection, or difference) on two input arrays and returns a packed/combined result at tier 2 quality.
Price / call$0.0009
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A JSON object with a 'tier' field (value 2) and a 'result' field containing the tier-2 packed output of the set operation applied to the two input arrays — typically a merged, deduplicated, or otherwise set-combined array.
Example use cases
Deduplicating tag lists from two sources
“I have two lists of product tags from different databases — ["electronics","gadgets","sale"] and ["gadgets","accessories","new"] — can you merge them into a single deduplicated set?”
Finding shared user IDs across two datasets
“I've got two user ID arrays from separate campaigns — [101,102,103,104] and [103,104,105,106] — pack them together so I can see the combined unique set of users.”
Combining feature flags from two config sources
“Merge these two feature flag arrays ["dark_mode","beta_ui","analytics"] and ["analytics","payments","dark_mode"] into one packed set with no repeats.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v2/array-set-pack/t2?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cheap, fast, pay-per-call set operation on two arrays without standing up your own compute — especially useful for autonomous agents on Base that already handle x402 micropayments and need lightweight array manipulation as a building block.
Side effects
- Missing 'a' or 'b' array fields returns an error
- Non-array values for 'a' or 'b' may cause processing failure
- Payment failure via x402 results in 402 Payment Required with no result
- Empty arrays may return an empty result set
- Network timeout on Cloudflare Workers edge
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| a | array | |
| b | array |
Output
Schema · Response
{
"type": "json",
"example": {
"tier": 2,
"result": "Tier-dependent output"
}
}Tags
x402
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