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JSON Array Intersection
x402
JSON Array Intersection is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns the set of values shared by two integer arrays, preserving left-side order, with counts and normalized values as deterministic versioned JSON.
Price / call$0.001
Success—
StatusUnknown
How this service works
JSON Array Intersection: JSON Array Intersection returns values shared by two JSON arrays in left-side order from bounded caller-supplied values without an external provider. Call JSON Array Intersection before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Array Intersection as versioned deterministic JSON. Price: $0.00…
Output
A versioned deterministic JSON object containing the intersection values in left-side order, the count of shared elements, normalized values, and a versioned result contract. No data is retained after processing.
Example use cases
Filter pipeline shared product IDs
“I have two lists of product IDs — the left list is what's in our warehouse [101, 204, 305, 408] and the right list is what a customer ordered [204, 305, 999, 101]. Can you find which product IDs appear in both lists, in the order they appear on the left?”
Validate overlapping user permission sets
“Before passing permissions to the downstream access-control tool, find me the integers that appear in both of these permission code arrays: left is [10, 20, 30, 40, 50] and right is [20, 40, 60, 80].”
Reconcile two batch job output sets
“I ran two batch jobs and got integer result sets — left job returned [7, 14, 21, 28, 35] and right job returned [14, 28, 42, 56]. What values did both jobs produce in common?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/json-array-intersectionWhen to prefer
Choose this endpoint when you need a fast, stateless, deterministic set-intersection over two bounded integer arrays without building custom logic — especially useful before handing structured data to a downstream tool that requires a strict contract on shared values. Prefer this over general-purpose code execution when you need a versioned, auditable result with normalized output for agent pipelines.
Side effects
- Arrays exceeding 256 items per side will be rejected
- Non-integer array items will fail schema validation
- Missing or malformed left/right fields return a validation error
- Empty arrays on either side return an empty intersection result
- Network or service unavailability returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| left | array | Left supplied to JSON Array Intersection; used only for this bounded calculation and processed in memory without retention. |
| right | array | Right supplied to JSON Array Intersection; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"count": 2,
"items": [
2,
3
]
},
"schema": "delx/util-json-array-intersection/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "3935c5e3bdec4177763cd3e7cf434284e8981e33d97a90a0407de0251171a40d",
"external_calls": 0
},
"operation": "data_batch:json_array_intersection"
}
}Tags
x402
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