How to Fix ERROR_ZERO_BALANCE in CAPTCHA Solver APIs

1. Root Causes for ERROR_ZERO_BALANCE

• Account balance dropped to $0.00 after high-volume scraping jobs
• Active tasks completed while deposit was low, exhausting remaining credit
• Auto-billing credit card payment was declined or expired

2. How to Resolve & Prevent This Error

1. Log in to 2Captcha dashboard and replenish balance (minimum deposit is only $1.00)
2. Implement a balance pre-check in your Python or Node.js scraping script using get_balance()
3. Configure an automated low-balance email or Telegram notification threshold (e.g. alert when < $5.00)

3. Python Code Fix & Defensive Error Handling

from twocaptcha import TwoCaptcha
import time

solver = TwoCaptcha("YOUR_API_KEY")

def ensure_balance(min_threshold=2.00):
    balance = solver.balance()
    print(f"Current 2Captcha balance: {balance:.2f}")
    if balance < min_threshold:
        raise Exception(f"Low balance alert: {balance:.2f} remaining. Top up account before starting crawl.")

try:
    ensure_balance()
    result = solver.recaptcha(sitekey="SITEKEY", url="TARGET_URL")
except Exception as e:
    if "ERROR_ZERO_BALANCE" in str(e):
        print("CRITICAL: Deposit exhausted. Pausing queue...")
    raise

4. Node.js Implementation

import Client from "@infosimples/node_two_captcha-api";

const solver = new Client("YOUR_API_KEY");

async function checkBalance() {
  const balance = await solver.balance();
  if (parseFloat(balance) < 1.0) {
    throw new Error("Low balance: " + balance + ". Top up required.");
  }
}

5. Why 2Captcha Minimizes API Errors

6. Frequently Asked Questions