Cross-platform odds disagreements for the same eventGET /api/v1/markets/spread · x402 API by prowldata
Cross-platform odds disagreements for the same event. When one platform says 60% and another says 45%, something is off -and someone can profit. Finds the biggest spreads across all platforms using fuzzy event matching. Powered by PROWL cross-platform normalization. Use this to answer 'where do prediction markets disagree?' or 'are there pricing inefficiencies in prediction markets?'
What does this x402 API do?
Cross-platform odds disagreements for the same event. This is an x402-gated GET API resource from prowldata. The latest safe exact-route check returned HTTP 404 on 2026-08-15. The listing records $0.005 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.005 USD-denominated per request
- Networks
- Base
- Latest evidence
- The latest safe exact-route check returned HTTP 404 on 2026-08-15
- Resource ID
- 24f3f6b9024f474822e4a27f
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://www.prowldata.dev/api/v1/markets/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.
- Exact route checked
non 402
- Origin reachable
HEAD https://www.prowldata.dev/ returned 404.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: degraded.
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 $0.005 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.