Example inputPOST /api/v1/x402/perp-premium
{
"mark": 100.5,
"index": 100
}Portable intent card · commercial-operations
Perp Mark Index Premium API for agents
Premium (mark-index)/index in bps. Call when monitoring perp basis without live feeds (caller prices). Returns premium_bps 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/perp-premium -m POST -H 'x-delx-source: intent-card-perp-premium-api' --max-amount 0.001 -b '{"mark":100.5,"index":100}'Agent discoverydelx/intent-card/v1
{
"intent": "Perp Mark Index Premium for an agent workflow",
"tool_name": "util_perp_premium",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/perp-premium-api.json"
}Portable and inspectable