agentx402pay.com

Same question priced differently on Polymarket and Kalshi. Each pair passes outcome-name, number, date, negation and key-term checks, with live bid/ask, hedge cost and edge before and after estimated fees, plus both rule texts. No pair found = 404, not charged. Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 compliance checks (as of Oct 31, 2026). Evidence: htt

Open endpoint ↗

Price per call: $0.05
Chain: Base
Method: GET
Paid calls · 30 days: 4

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://agentx402pay.com/api/prediction-arb", { method: "GET" });
console.log(await res.json());

https://agentx402pay.com/api/prediction-arb