Example inputPOST /api/v1/x402/pairs-zscore
{
"spread": [
1,
1.1,
0.9,
1.2,
0.8,
1
]
}Portable intent card · commercial-operations
Pairs Z-Score API for agents
Z-score of spread series for pairs trading. Call when mean-reversion signals from a price-spread series. Returns zscore, mean, stdev 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/pairs-zscore -m POST -H 'x-delx-source: intent-card-pairs-zscore-api' --max-amount 0.001 -b '{"spread":[1,1.1,0.9,1.2,0.8,1]}'Agent discoverydelx/intent-card/v1
{
"intent": "Pairs Z-Score for an agent workflow",
"tool_name": "util_pairs_zscore",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/pairs-zscore-api.json"
}Portable and inspectable