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Delx Commerce — List Length Safe
x402
Delx Commerce — List Length Safe is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Returns the safe length of an array/list, handling edge cases like null or undefined inputs without throwing errors.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object containing the integer length of the provided array and a schema identifier string ('delx/util-list-len-safe/v1'). Handles null, undefined, or missing inputs safely without throwing exceptions.
Example use cases
Null-safe pipeline item count
“I have a list coming from an upstream step that might be null or empty — can you safely count how many items are in it without crashing? The list is ["step1", "step2", "step3"].”
Validate batch size before processing
“Before I send this batch off for processing, can you tell me exactly how many entries are in it? The items are ["order_001", "order_002", "order_003", "order_004"] — use the safe counter so it handles edge cases.”
Empty list detection in automation
“Check whether this list has any items in it: [] — I need a safe count so my automation workflow knows whether to proceed or skip.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/list-len-safe?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a guaranteed safe array length computation inside an agent pipeline where null or undefined inputs are possible and crashing is unacceptable. Prefer it over native language length operations when operating in a sandboxed or payment-gated agent environment using the x402 micropayment protocol on Base or Solana.
Side effects
- Malformed request body (non-array items field) may return an error or zero
- Payment failure via x402 protocol results in 402 response before execution
- Network timeout for requests that take too long
- Empty or missing items field returns length of 0 or error depending on implementation
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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