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Delx List Len Safe
x402
Delx List Len Safe is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-21).
Returns the safe integer length of a JSON array without any network calls or external dependencies.
Price / call$0.001
Success—
StatusUnknown
How this service works
Safe length of a list/JSON array. Call when you measure agent arrays before batching. Returns length integer 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
An integer representing the number of elements in the provided JSON array, computed locally without external network calls or data retention.
Example use cases
Pre-batch array size check
“I have a list of user records I need to batch-process — can you tell me how many items are in this array before I split it into chunks: [{"id":1},{"id":2},{"id":3},{"id":4},{"id":5}]?”
Agent pipeline item count
“Before my agent sends these tasks to the queue, can you safely measure how many items are in this list: ["task_a","task_b","task_c"]?”
Validate non-empty results list
“I got back a list of search results and need to know if it has any items before continuing — can you count how many are in this array: ["result1","result2"]?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/list-len-safe?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, no-side-effect array length check within an agentic pipeline — especially before batching, chunking, or quota checks. Prefer it over custom code when operating in environments without local execution, or when you want a paid, auditable micro-utility via x402 on Base. It is not appropriate for deep array inspection, nested counting, or recursive structures.
Side effects
- Input is not a valid JSON array — returns an error or zero
- Field 'items' is missing from request body — likely returns an error
- Empty array provided — returns 0 (valid but agents should handle this case)
- Non-array value passed in items field — may return error or unexpected result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| items | array | Input field: items. |
Output
Schema · Response
{
"type": "json",
"example": {
"length": 3,
"schema": "delx/util-list-len-safe/v1"
}
}Tags
x402
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