uCaptcha — Universal CAPTCHA Solver API
uCaptcha is a universal CAPTCHA solver aggregator available at api.ucaptcha.net. Instead of integrating with multiple solving providers individually, maintaining separate SDKs, and managing different account balances, you use a single API that intelligently routes your tasks to the best available provider based on speed, cost, and reliability.
Already using 2captcha, CapSolver, or AntiCaptcha directly? uCaptcha is a drop-in alternative — switch with a single base URL change and gain access to multi-provider routing, smarter pricing, and consolidated billing.
Key Benefits
Section titled “Key Benefits”- One API — Drop-in compatible with 2captcha’s API format. Switch your existing integration in minutes by changing the base URL. Our modern JSON API (
/createTask,/getTaskResult) is also fully supported. - Smart Routing — Our Pareto frontier algorithm automatically selects the optimal provider for each task based on your configured priorities. Balance speed, cost, and reliability with three simple sliders or choose from preset routing modes.
- Zero Lock-in — Bring your own provider API keys and use them directly through uCaptcha at no extra cost. Recycle leftover balances from providers you no longer use.
- Lightning Mode — Pre-solved tokens ready instantly for high-throughput pipelines. Enable per API key to get near-zero latency on supported task types.
- Full 2captcha Compatibility — Both
/in.phpand/res.phplegacy endpoints are supported. Existing 2captcha integrations work with a single base URL change.
Supported Providers
Section titled “Supported Providers”uCaptcha aggregates the following CAPTCHA solving providers at launch:
| Provider | Website | Specialties |
|---|---|---|
| CapSolver | capsolver.com | Token tasks, AI-based solving |
| 2Captcha | 2captcha.com | Broad coverage, image recognition |
| AntiCaptcha | anti-captcha.com | Enterprise, high volume |
| CapMonster | capmonster.cloud | Token tasks, competitive pricing |
| Multibot | multibot.in | Budget-friendly, image captchas |
| uCaptcha Native | ucaptcha.net | uCaptcha’s native solving infrastructure |
The routing engine evaluates all available providers in real time and selects the best one for each individual task based on your configured routing preferences.
Supported CAPTCHA Types
Section titled “Supported CAPTCHA Types”uCaptcha supports a wide range of CAPTCHA types across all integrated providers:
Token-based CAPTCHAs:
- reCAPTCHA v2 (checkbox, invisible, enterprise)
- reCAPTCHA v3 (score-based, enterprise)
- hCaptcha (standard, enterprise)
- Cloudflare Turnstile
- FunCaptcha (Arkose Labs)
- GeeTest v3 and v4
- Cloudflare Challenge
- DataDome
- Amazon WAF (AWS WAF Captcha)
- CyberSiARA
- Lemin
- Capy Puzzle
- KeyCaptcha
- Tencent Captcha
- atbCAPTCHA
- And more as providers add support
Recognition-based CAPTCHAs:
- Image-to-text (standard image captchas)
- Grid selection (click the images containing…)
- Bounding box selection
- Coordinate-based (click at specific positions)
- Audio captchas
- Rotate captchas
How It Works
Section titled “How It Works”The uCaptcha flow is straightforward:
- Create a task — Send your CAPTCHA parameters (site URL, site key, type) to our
/createTaskendpoint. - We route and solve — Our routing engine selects the optimal provider based on your API key’s routing settings, forwards the task, and monitors it for completion.
- Get the result — Poll
/getTaskResultwith your task ID. When ready, the response contains the solution token or recognition result.
The entire process is transparent. You interact with one consistent API regardless of which provider actually solves the task.
Frequently Asked Questions
Section titled “Frequently Asked Questions”Is uCaptcha compatible with the 2captcha API?
Yes. uCaptcha supports the full 2captcha API format including /in.php and /res.php. Change only the base URL — all existing parameters and response parsing work identically. See the Legacy API guide.
What CAPTCHA types does uCaptcha support? reCAPTCHA v2 and v3 (including enterprise and invisible variants), hCaptcha, Cloudflare Turnstile, FunCaptcha, GeeTest v3/v4, DataDome, Amazon WAF, and 15+ more. See the full task list in the sidebar under Token Tasks and Recognition Tasks.
How much does it cost? Pay-as-you-go with no subscriptions. reCAPTCHA v2 starts at $0.50 per 1,000 tasks with the Cheapest routing preset. See Pricing & Billing for the full breakdown.
Do I need accounts with each provider? No. uCaptcha manages all provider credentials on your behalf. You only need a single uCaptcha API key, obtained for free via the Telegram bot.
Can I use my existing provider API keys? Yes. Submit unused provider keys through Key Recycling to earn uCaptcha credits dollar-for-dollar, and bring active keys into the routing pool at no extra cost.
Next Steps
Section titled “Next Steps”Head to the Quick Start guide to create and solve your first CAPTCHA task in under 2 minutes.