Example inputPOST /api/v1/x402/arr-first
{
"items": [
"alpha",
"beta"
]
}Portable intent card · data-quality
Array First API for agents
Return the first list element. Call when you need head of an agent-held array safely. Returns value and empty flag 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-first -m POST -H 'x-delx-source: intent-card-arr-first-api' --max-amount 0.001 -b '{"items":["alpha","beta"]}'Agent discoverydelx/intent-card/v1
{
"intent": "Array First for an agent workflow",
"tool_name": "util_arr_first",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/arr-first-api.json"
}Portable and inspectable