Cross-DEX arb-spreadGET /arb-spread · x402 API by trading-x402.rivr.workers.dev
How often a pair dislocates across DEXs, how far, and how long it stays open (statistics over a window, at the disclosed sample interval — not a live signal)
What does this x402 API do?
Cross-DEX arb-spread. This is an x402-gated GET API resource from trading-x402.rivr.workers.dev. TOLL·402 records origin reachable evidence as of 2026-08-05. The listing records $0.1 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.1 USD-denominated per request
- Networks
- Base
- Latest evidence
- TOLL·402 records origin reachable evidence as of 2026-08-05
- Resource ID
- 602afe4aadd4779a515b3899
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://trading-x402.rivr.workers.dev/arb-spread", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Observed in 402-index
Discovered through self-registered.
- Exact route checked
http 402 invalid · accept-0:resource-mismatch;accepts-missing
- Origin reachable
HEAD https://trading-x402.rivr.workers.dev/ returned 404.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is $0.1 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.