Example inputPOST /api/v1/x402/spread-abs
{
"bid": 99.5,
"ask": 100.5
}Portable intent card · commercial-operations
Absolute Spread API for agents
Absolute bid–ask spread for liquidity snapshots. Call when venue quality filters that use raw spread width. Returns absolute spread 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/spread-abs -m POST -H 'x-delx-source: intent-card-spread-abs-api' --max-amount 0.001 -b '{"bid":99.5,"ask":100.5}'Agent discoverydelx/intent-card/v1
{
"intent": "Absolute Spread for an agent workflow",
"tool_name": "util_spread_abs",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/spread-abs-api.json"
}Portable and inspectable