Example inputPOST /api/v1/x402/arr-nth
{
"items": [
"a",
"b",
"c"
],
"index": 1
}Portable intent card · data-quality
Array Nth API for agents
Return the element at index. Call when you pick a specific agent-held array slot with bounds check. Returns value, index, ok 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.
Intent to transaction
One command, attributed.
The source header follows this discovery route through challenge, payment and delivery without exposing the buyer or request body.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/arr-nth -m POST -H 'x-delx-source: intent-card-arr-nth-api' --max-amount 0.001 -b '{"items":["a","b","c"],"index":1}'Agent discoverydelx/intent-card/v1
{
"intent": "Array Nth for an agent workflow",
"tool_name": "util_arr_nth",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/arr-nth-api.json"
}Portable and inspectable