x402 Examples

import { wrapAxiosWithPayment, x402Client } from "@x402/axios";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import axios from "axios";
import { privateKeyToAccount } from "viem/accounts";

const signer = privateKeyToAccount(
  process.env.PAYER_PRIVATE_KEY as `0x${string}`,
);
const client = new x402Client();
registerExactEvmScheme(client, { signer });

const api = wrapAxiosWithPayment(
  axios.create({ baseURL: "https://api.eluup.ai" }),
  client,
);

async function getTokenSignals() {
  const response = await api.post("/v1/token-signals", {
    tokens: [{ identifier: "mcade", limit: 10 }],
  });

  if (response.status >= 200 && response.status < 300) {
    console.log("Results:", response.data.data.results);
    return response.data.data.results;
  }

  if (response.status === 402) {
    const decoded = JSON.parse(
      Buffer.from(response.headers["payment-required"], "base64").toString(
        "utf-8",
      ),
    );
    console.error("Payment failed:", decoded.error);
    return null;
  }

  console.error("Request failed:", response.data?.error);
  return null;
}

getTokenSignals();

{ "tokens": [{ "identifier": "ETH" }, { "identifier": "USDC" }] }

{
  "tokens": [{ "identifier": "clanker" }],
  "startDate": "2026-01-01T00:00:00Z",
  "endDate": "2026-03-31T23:59:59Z",
  "signalType": "SELL"
}

{ "sortBy": "winRate", "limit": 10 }

{}

{ "limit": 100 }