Coinbase X402

import os, json, requests
from eth_account import Account
from x402.clients.requests import x402_requests
from anchorbrowser import Anchorbrowser

ENDPOINT = "https://api.anchorbrowser.io/v1/sessions"
BODY = {}

key = os.getenv("PRIVATE_KEY") or exit("Set PRIVATE_KEY=0x...")

# Try to create session normally first
try:
    anchor_client = Anchorbrowser(api_key=os.getenv("ANCHOR_API_KEY"))
    session = anchor_client.sessions.create()
    print(json.dumps(session.data, indent=2))
except Exception as e:
    # If we get a 402 error, handle payment
    if "402" in str(e):
        # Get payment details and process with x402
        pre = requests.post(ENDPOINT, json=BODY, timeout=30)
        price = int(pre.json()["accepts"][0]["maxAmountRequired"])
        
        res = x402_requests(Account.from_key(key)).post(ENDPOINT, json=BODY, timeout=60)
        print(json.dumps(res.json(), indent=2))
    else:
        raise e

import AnchorBrowser from 'anchorbrowser';
import { Account } from 'eth-account';
import { x402Fetch } from 'x402';

(async () => {
  const ENDPOINT = "https://api.anchorbrowser.io/v1/sessions";
  const BODY = {};
  
  const key = process.env.PRIVATE_KEY;
  if (!key) {
    console.error("Set PRIVATE_KEY=0x...");
    process.exit(1);
  }
  
  try {
    // Try to create session normally first
    const anchor_client = new AnchorBrowser({apiKey: process.env.ANCHOR_API_KEY});
    const session = await anchor_client.sessions.create();
    console.log(JSON.stringify(session.data, null, 2));
  } catch (error) {
    // If we get a 402 error, handle payment
    if (error.message.includes("402")) {
      const pre = await fetch(ENDPOINT, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify(BODY)
      });
      
      const preData = await pre.json();
      const price = parseInt(preData.accepts[0].maxAmountRequired);
      
      const account = Account.fromPrivateKey(key);
      const res = await x402Fetch(account, ENDPOINT, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify(BODY)
      });
      
      console.log(JSON.stringify(await res.json(), null, 2));
    } else {
      throw error;
    }
  }
})().catch(console.error);