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Nikolay Khivrin
Nikolay Khivrin

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Best Captcha Solver for Captcha Bypass

#captcha #captchasolver #captchabypass #captchaauto

Best Captcha Solver for CAPTCHA Bypass

2Captcha is a fast CAPTCHA solving service designed for automation workloads where CAPTCHA types change frequently and reliability matters more than raw speed.

Best fit for:

  • High-volume automation, scraping, account flows, and long-running pipelines
  • Multiple CAPTCHA families across projects, preferring one integration
  • Production workflows where acceptance rate and stability matter more than raw speed
  • Teams that want predictable integration behavior

Best Captcha Solver for CAPTCHA Bypass

What Is a CAPTCHA Solver?

Automation usually fails not because your browser or HTTP client is broken, but because CAPTCHA systems change faster than automation stacks can adapt. A crawler can run smoothly for hours — and then suddenly stop because a new challenge appeared.

A CAPTCHA solver is a service that accepts website challenges — image grids, sliders, audio puzzles, or enterprise tokens — and returns a valid solution. Without such services, automation is fragile because anti-bot systems constantly update their defenses.

What Is 2Captcha?

2Captcha is a human-based CAPTCHA solving service covering nearly every modern CAPTCHA type through a single API:

createTask → getTaskResult → apply token
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The key difference: 2Captcha is not a pure AI solver — it combines machine learning with real human workers when needed.

How 2Captcha Works Under the Hood

1. createTask

Send the target parameters (URL, sitekey, and task-specific fields). The API returns a taskId. You can also use callbackUrl for webhooks.

2. getTaskResult

Poll the result endpoint. While the task is being solved, the API returns status: processing.
Wait at least 5 seconds between requests.

3. Apply the solution immediately

Once the API returns status: ready, apply the solution in the same session where the CAPTCHA appeared.

Working Python Example 

import os
import sys
import time
import json
import requests

CREATE_TASK_URL = "https://api.2captcha.com/createTask"
GET_TASK_RESULT_URL = "https://api.2captcha.com/getTaskResult"
REPORT_CORRECT_URL = "https://api.2captcha.com/reportCorrect"
REPORT_INCORRECT_URL = "https://api.2captcha.com/reportIncorrect"

WEBSITE_URL = os.getenv(
    "CAPTCHA_WEBSITE_URL",
    "https://2captcha.com/demo/recaptcha-v2",
)
WEBSITE_KEY = os.getenv(
    "CAPTCHA_WEBSITE_KEY",
    "6LfD3PIbAAAAAJs_eEHvoOl75_83eXSqpPSRFJ_u",
)

POLL_INTERVAL_SEC = 5
TIMEOUT_SEC = 180


def api_post(url: str, payload: dict, timeout: int = 30) -> dict:
    r = requests.post(url, json=payload, timeout=timeout)
    r.raise_for_status()
    data = r.json()

    if not isinstance(data, dict):
        raise RuntimeError(f"Unexpected JSON response: {data!r}")

    if data.get("errorId") not in (0, None):
        raise RuntimeError(f"2Captcha API error: {data}")

    return data


def create_recaptcha_v2_proxyless_task(client_key: str) -> int:
    payload = {
        "clientKey": client_key,
        "task": {
            "type": "RecaptchaV2TaskProxyless",
            "websiteURL": WEBSITE_URL,
            "websiteKey": WEBSITE_KEY,
            "isInvisible": False,
        },
    }

    data = api_post(CREATE_TASK_URL, payload)
    task_id = data.get("taskId")

    if task_id is None:
        raise RuntimeError(f"Missing taskId in response: {data}")

    return int(task_id)


def wait_for_result(client_key: str, task_id: int) -> tuple[str, dict]:
    deadline = time.time() + TIMEOUT_SEC

    while time.time() < deadline:
        time.sleep(POLL_INTERVAL_SEC)

        data = api_post(
            GET_TASK_RESULT_URL,
            {"clientKey": client_key, "taskId": int(task_id)},
        )

        status = data.get("status")

        if status == "processing":
            continue

        if status == "ready":
            solution = data.get("solution") or {}
            token = solution.get("gRecaptchaResponse") or solution.get("token")

            if not token:
                raise RuntimeError(f"Missing token in solution: {data}")

            return str(token), data

        raise RuntimeError(f"Unexpected getTaskResult response: {data}")

    raise TimeoutError(
        f"Timed out waiting for taskId={task_id} after {TIMEOUT_SEC}s"
    )


def report_feedback(client_key: str, task_id: int, accepted: bool) -> bool:
    url = REPORT_CORRECT_URL if accepted else REPORT_INCORRECT_URL
    data = api_post(url, {"clientKey": client_key, "taskId": int(task_id)})
    return data.get("status") == "success"


def main() -> None:
    client_key = os.getenv("TWOCAPTCHA_API_KEY")

    if not client_key:
        print("ERROR: env var TWOCAPTCHA_API_KEY is not set", file=sys.stderr)
        sys.exit(2)

    task_id = create_recaptcha_v2_proxyless_task(client_key)
    token, raw = wait_for_result(client_key, task_id)

    print("taskId:", task_id)
    print("websiteURL:", WEBSITE_URL)
    print("websiteKey:", WEBSITE_KEY)
    print("token:", token)


if __name__ == "__main__":
    main()
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Why 2Captcha, Not Another Solver

Pure AI solvers respond too uniformly — which makes them easy to detect.

2Captcha combines ML with real humans: AI handles simple cases, humans handle complex ones, producing natural timing patterns.

Advantages

Wide type coverage
Supports all major CAPTCHA families without separate integrations.

Stable API across all families
One model, no rewrites.

Predictable cost and latency
Makes throughput planning easier.

Works everywhere
Selenium, Playwright, Puppeteer, mobile automation, backend scripts.

Why 2Captcha, Not Another Solver

2Captcha vs ML-Only Solvers

Criteria 2Captcha ML Solvers
Solve speed 0.1–25 sec 0.1–2 sec
Timing pattern Variable, natural Uniform
Type coverage 30+ types Popular only
New CAPTCHA types Hours Days/weeks
Complex CAPTCHAs Yes Usually no
Success rate 90%+ 80–90%
Ban resistance High Medium–low
Cost Slightly higher Slightly lower

Bottom line:
ML solvers are cheaper and faster — but get banned more often.
2Captcha costs a bit more, but actually works.

Common Mistakes (How NOT to Do It)

Mistake #1 — Hammering the API 

# ❌ Bad — you will get rate-limited
while True:
    requests.get(f"https://2captcha.com/res.php?id={task_id}")
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# ✅ Good — polite polling
time.sleep(5)
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Mistake #2 — Ignoring NOT_READY 

# ❌ Bad
if "NOT_READY" in result:
    create_new_task()
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# ✅ Good
if "NOT_READY" in result:
    time.sleep(5)
    continue
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Mistake #3 — Using a stale token

reCAPTCHA tokens live ~120 seconds.

token = get_captcha_solution()
submit_form(token)  # use immediately
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Mistake #4 — Not reporting bad solutions 

requests.get(
  f"https://2captcha.com/res.php?key={API_KEY}&action=reportbad&id={task_id}"
)
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Supported CAPTCHA Types

Popular

  • reCAPTCHA V2
  • reCAPTCHA V2 Callback
  • reCAPTCHA V2 Invisible
  • reCAPTCHA V3
  • reCAPTCHA Enterprise
  • Cloudflare Turnstile
  • FunCaptcha (Arkose Labs)
  • Normal Captcha
  • Image Captcha
  • Amazon Captcha

Other CAPTCHAs

  • GeeTest
  • DataDome
  • Tencent Captcha
  • Audio Captcha
  • Russian Captcha
  • MTCaptcha
  • Number Captcha
  • Text Captcha
  • Lemin Captcha
  • Chinese Captcha
  • Rotate Captcha
  • Friendly Captcha
  • Math Captcha
  • Click Captcha
  • Slider Captcha
  • Cutcaptcha
  • ALTCHA
  • Temu Captcha
  • Capy Puzzle
  • atbCAPTCHA
  • Procaptcha
  • CaptchaFox
  • VK Captcha

IMAGE SLOT #3

When 2Captcha Is the Right Fit

  • The site uses difficult or regional CAPTCHAs
  • You need stable pricing
  • You don’t want multiple integrations
  • Anti-bot systems analyze timing patterns
  • CAPTCHA formats change frequently

Browser Extension

If you need to solve CAPTCHAs directly in the browser (manual workflows, QA, testing), the 2Captcha browser extension is the easiest option.

Supported browsers:
Chrome, Firefox, Edge, Opera, Brave.

Selenium & Puppeteer Integrations

2Captcha provides ready-to-use examples showing how to:

  • detect CAPTCHA in the DOM
  • extract sitekey
  • send task to API
  • inject solution back into the page
  • handle page reloads

Official SDKs

Language Link
PHP PHP captcha solver
Python Python captcha solver
Java Java captcha solver
C# C# captcha solver
Go Go captcha solver
Ruby Ruby captcha solver
JavaScript JavaScript captcha solver

Unlike many competitors, these SDKs are maintained officially by 2Captcha and stay in sync with the API.

Final Notes

2Captcha blends human-like behavior, broad CAPTCHA coverage, and a unified API into a stable automation layer.

If your automation keeps breaking on CAPTCHAs — this is the tool you want.

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