Example inputPOST /api/v1/x402/us-market-holiday-check
{
"date": "2026-01-01"
}Portable intent card · data-quality
US Market Holiday Check API for agents
Check if a YYYY-MM-DD is in a static US market holiday set. Call when scheduling around known US market holidays offline. Returns is_holiday and name if known as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, 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/us-market-holiday-check -m POST -H 'x-delx-source: intent-card-us-market-holiday-check-api' --max-amount 0.001 -b '{"date":"2026-01-01"}'Agent discoverydelx/intent-card/v1
{
"intent": "US Market Holiday Check for an agent workflow",
"tool_name": "util_us_market_holiday_check",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/us-market-holiday-check-api.json"
}Portable and inspectable