Comparisons

Best CAPTCHA Solving Services Compared (2025)

CAPTCHA solving APIs let developers automate CAPTCHA challenges by submitting them to a service and receiving solved tokens or text. This guide compares the leading services across pricing, speed, type support, and developer experience.

Services Covered

Service Founded API Style Min Deposit
CaptchaAI 2022 REST (GET/POST) $1
2Captcha 2014 REST (GET/POST) $1
Anti-Captcha 2007 JSON POST $1
CapSolver 2022 JSON POST $1
DeathByCaptcha 2009 REST + Socket $6.90
NopeCHA 2022 Browser Extension + API Free tier

CAPTCHA Type Support

CAPTCHA Type CaptchaAI 2Captcha Anti-Captcha CapSolver DBC NopeCHA
reCAPTCHA v2
reCAPTCHA v3 ⚠️
reCAPTCHA Enterprise
Cloudflare Turnstile
Cloudflare Challenge
GeeTest v3
GeeTest v4
hCaptcha
Image/OCR
BLS CAPTCHA
Grid Image
FunCaptcha

Key takeaway: CaptchaAI has the broadest coverage, including BLS CAPTCHA and Cloudflare Challenge — types most competitors don't support.

Pricing Comparison (per 1,000 solves)

CAPTCHA Type CaptchaAI 2Captcha Anti-Captcha CapSolver DBC
Image/OCR $0.50 $0.70 $0.70 $0.80 $1.39
reCAPTCHA v2 $1.00 $1.45 $1.80 $1.50 $2.89
reCAPTCHA v3 $1.20 $1.45 $2.00 $1.80 $5.00+
Turnstile $1.00 $1.45 $2.00 $1.50 N/A
hCaptcha $1.00 $1.45 $1.80 $1.50 N/A

Prices shown are starting rates. Volume discounts vary by provider. CaptchaAI offers the lowest starting price across all type categories.

Speed Comparison (average solve time)

CAPTCHA Type CaptchaAI 2Captcha Anti-Captcha CapSolver DBC
Image/OCR ~5s ~8s ~8s ~5s ~12s
reCAPTCHA v2 ~12s ~20s ~20s ~15s ~45s
reCAPTCHA v3 ~8s ~15s ~12s ~10s ~45s+
Turnstile ~10s ~15s ~15s ~12s N/A

CaptchaAI delivers the fastest solve times, particularly for token-based CAPTCHAs. Speed differences compound significantly at high volumes.

API Design and Integration

REST-Based (CaptchaAI, 2Captcha)

Submit via GET parameters, poll via GET. Simplest to integrate — testable from a browser URL bar or curl:

# CaptchaAI submit
resp = requests.get("https://ocr.captchaai.com/in.php", params={
    "key": "YOUR_API_KEY",
    "method": "userrecaptcha",
    "googlekey": "SITE_KEY",
    "pageurl": "https://example.com"
})
task_id = resp.text.split("|")[1]

# CaptchaAI poll
result = requests.get("https://ocr.captchaai.com/res.php", params={
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": task_id
})

JSON-Based (Anti-Captcha, CapSolver)

Submit via JSON POST with typed task objects:

# Anti-Captcha submit
resp = requests.post("https://api.anti-captcha.com/createTask", json={
    "clientKey": "YOUR_KEY",
    "task": {
        "type": "RecaptchaV2TaskProxyless",
        "websiteURL": "https://example.com",
        "websiteKey": "SITE_KEY"
    }
})

Both patterns follow the same workflow: submit task → poll for result. REST-based APIs require fewer lines of code and no request body construction.

Accuracy and Reliability

Metric CaptchaAI 2Captcha Anti-Captcha CapSolver DBC
Success rate 99%+ 99% 99% 99% ~90%
Uptime 99.9%+ 99.9% 99.9% 99.5% 99%
Auto-retry
Refund on failure

All modern services maintain high accuracy on standard CAPTCHAs. DeathByCaptcha's lower accuracy reflects its older human-solver infrastructure.

Developer Experience

Feature CaptchaAI 2Captcha Anti-Captcha CapSolver
Free trial
API docs quality Strong Strong Strong Good
Official SDKs Python, JS Python, JS, PHP Python, JS, Go Python, JS, Go
Dashboard Balance, stats Balance, stats, logs Balance, stats, logs Balance, stats
Callback support
Error reporting Text codes Text codes JSON errors JSON errors

Which Service Should You Choose?

Choose CaptchaAI if:

  • You want the lowest pricing across all CAPTCHA types
  • You need BLS CAPTCHA or Cloudflare Challenge support
  • Speed is critical (fastest average solve times)
  • You prefer a simple REST API without SDK dependencies
  • You want a free trial to test before paying

Choose 2Captcha if:

  • You need an established service with extensive documentation
  • You want PHP SDK support
  • CaptchaAI-compatible API format (easiest migration path)

Choose Anti-Captcha if:

  • Your team standardized on JSON-based APIs
  • You need Go SDK support
  • You're solving standard types only (reCAPTCHA, hCaptcha)

Choose CapSolver if:

  • You need AWS WAF or DataDome CAPTCHA support
  • You want a modern JSON API with competitive pricing
  • You need Cloudflare Challenge support (only CaptchaAI and CapSolver offer this)

Avoid DeathByCaptcha if:

  • You need any CAPTCHA type besides image and reCAPTCHA v2
  • Speed matters — their solve times are 3-4x slower
  • Accuracy above 95% is required for token-based CAPTCHAs

Migration to CaptchaAI

If you're switching from another service, see these migration guides:

FAQ

Which CAPTCHA solver is cheapest?

CaptchaAI offers the lowest per-solve pricing across all major CAPTCHA types. For image CAPTCHAs, rates start at $0.50 per 1,000 solves.

Do these services work with Selenium and Puppeteer?

Yes. All services listed are API-based — you submit CAPTCHA parameters from your browser automation script and inject the returned token. They work with any browser automation framework.

CAPTCHA solving services are legal tools. How they're used depends on the specific use case and the target website's terms of service. Common legitimate applications include accessibility testing, QA automation, and authorized data collection.

Can I use multiple services as fallbacks?

Yes. A common pattern is to use CaptchaAI as the primary solver and a secondary service as fallback. Since all services use similar submit/poll patterns, implementing fallback logic requires minimal code.

What's the difference between free and paid solvers?

See our detailed breakdown: Free vs Paid CAPTCHA Solvers.

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