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Delx Array Compact
x402
Delx Array Compact is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Removes null and empty values from an input array and returns the compacted list along with counts of remaining and removed items.
Price / call$0.001
Success—
StatusUnknown
How this service works
Drop null/empty values from a list. Call when you clean agent arrays before serialization. Returns compacted items, count, removed for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.
Output
Returns a JSON object containing: the compacted array with all null and empty values removed, the count of remaining items, and the count of removed items.
Example use cases
Pre-serialization payload cleanup
“Before I send this data to the API, strip out all the nulls and empty entries from this array: ["user@example.com", null, "", "admin@example.com", null].”
Agent pipeline array sanitization
“My agent just collected a list of tags but some came back as null or empty — can you compact this array and tell me how many got removed? The list is ["ai", null, "automation", "", "workflow", null].”
Form response cleaning
“I have survey responses in an array with a bunch of blank and null answers — filter those out and give me just the valid entries along with how many were dropped.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/arr-compactWhen to prefer
Use this endpoint when you need a lightweight, stateless, zero-retention way to strip null and empty values from an array before serialization or downstream processing — especially in agent pipelines where clean JSON is required. Prefer this over writing inline filtering logic when you want a consistent, cost-predictable microservice call at $0.001 USDC.
Side effects
- Missing or malformed 'items' field returns an error
- Non-array input for items field may cause a validation error
- Payment failure via x402 protocol blocks processing
- Empty input array returns an empty compacted array with zero removed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| items | array | Input field: items. |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 2,
"items": [
1,
2
],
"schema": "delx/util-arr-compact/v1",
"removed": 4
}
}Tags
x402
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