Supported CAPTCHA Types

Capability matrix · Last verified: August 30, 2026

1. How to Read This Matrix

This page is the single source of truth for what CaptchaKings solves today. Every solver page, pricing table, FAQ answer, and documentation section must match the status shown here. We never describe a planned capability as active.

  • Production — live, billed API endpoint with measured accuracy and response times.
  • Extension — solved client-side by the CaptchaKings Solver Chrome extension, billed from the same balance.
  • Limited — solvable through our generic image API (base64 upload). Accuracy depends on image quality and is not separately benchmarked per variant.
  • Planned — on the roadmap, not available via the API today. Landing pages for these types describe the planned integration.
Accuracy and response-time figures are internal measurements. Method, sample sizes, and windows: Benchmarks & Methodology. Pricing: $1.00 per 1,000 solves for Tencent, GeeTest, xCaptcha, MTCaptcha, and Amazon WAF; $0.80 per 1,000 solves for image/text OCR. New accounts get $0.50 free.

2. Production API Production

Dedicated, load-tested endpoints with per-type benchmarks.

Tencent & Chinese Captcha Production

Variants
Slider, sequence click (顺序点击), spatial category
Endpoint
POST /api/tencent.php
Input
API key + challenge parameters from the target page
Response time
Median 0.17s · p95 0.35s · max 2s
Accuracy
97% — 500+ production samples, Jun–Aug 2026
Limitations
New Tencent variants may need a model update before full accuracy
Last verified
August 30, 2026
Docs
/docs/?section=tencent · Overview page
Request: curl -X POST https://captchakings.com/api/tencent.php -d "key=YOUR_API_KEY" -d "type=tencent_slider" -d "image_base64=..." Response: {"status": 1, "request": "{\"x\": 128}", "cost": "0.001"}

GeeTest v3 / v4 Production

Variants
v3 click, v4 slider
Endpoint
POST /api/geetest.php
Input
API key + gt/challenge (v3) or captcha_id (v4) + page URL
Response time
Median 0.4s · p95 0.9s · max 3s
Accuracy
97% — 400 production samples, Jun–Aug 2026
Limitations
Custom GeeTest themes can reduce first-attempt accuracy
Last verified
August 30, 2026
Docs
/docs/?section=geetest · Overview page
Request: curl -X POST https://captchakings.com/api/geetest.php -d "key=YOUR_API_KEY" -d "version=v4" -d "captcha_id=..." -d "pageurl=..." Response: {"status": 1, "request": "{\"lot_number\": \"...\", \"pass_token\": \"...\"}", "cost": "0.001"}

xCaptcha Production

Variants
Binary button classification rounds
Endpoint
POST /api/in.php (2Captcha-compatible, method=xcaptcha) or /api/xcaptcha.php
Input
API key + base64 challenge image
Response time
Median 0.8s · p95 1.5s · max 5s
Accuracy
96% — 500 production samples, Jun–Aug 2026
Limitations
Multi-round challenges are billed per round
Last verified
August 30, 2026
Docs
/docs/?section=xcaptcha · Overview page
Request: curl -X POST "https://captchakings.com/api/in.php" -d "key=YOUR_API_KEY&method=xcaptcha&json=1" -d "body=BASE64_IMAGE" Response: {"status": 1, "request": "12345678"} → GET /api/res.php?key=...&id=12345678&json=1 → {"status": 1, "request": "{\"buttons_to_click\": [1, 2]}"}

MTCaptcha Production

Variants
Image-to-text token
Endpoint
POST /api/mtcaptcha.php
Input
API key + challenge image (file upload or base64)
Response time
Median 2.1s · p95 4s · max 10s
Accuracy
98% — 300 production samples, Jun–Aug 2026
Limitations
Unusually long tokens may need a retry on timeout
Last verified
August 30, 2026
Docs
/docs/?section=mtcaptcha · Overview page
Request: curl -X POST https://captchakings.com/api/mtcaptcha.php -d "key=YOUR_API_KEY" -d "image_base64=..." Response: {"status": 1, "request": "a3f9k2", "cost": "0.001"}

Amazon AWS WAF Production

Variants
captcha_voucher token (puzzle and text challenges)
Endpoint
POST /api/amazon.php
Input
API key + websiteURL, iv, key, context from the WAF challenge page
Response time
Median 8s · p95 14s · max 30s
Accuracy
97% — 500 production samples, Jan–Aug 2026 (live since January 2026)
Limitations
WAF challenge format changes can cause short adaptation windows
Last verified
August 30, 2026
Docs
/amazon-waf-solver · Overview page
Request: curl -X POST https://captchakings.com/api/amazon.php -d "key=YOUR_API_KEY" -d "websiteURL=..." -d "iv=..." -d "key=..." -d "context=..." Response: {"status": 1, "request": "{\"captcha_voucher\": \"...\"}", "cost": "0.001"}

Image / Text / Number / Math OCR Production

Variants
Distorted text, numbers, arithmetic questions
Endpoint
POST /api/in.php (method=base64) or /api/process.php
Input
API key + base64 image or file upload
Response time
Median 1.2s · p95 2.5s · max 10s
Accuracy
up to 99.9% on our standard distorted-text test set (1,000 labeled images, Aug 2026); varies with distortion
Limitations
Very low resolution, overlapping characters, or handwriting reduce accuracy
Last verified
August 30, 2026
Docs
/docs/?section=endpoints · Overview page
Request: curl -X POST "https://captchakings.com/api/in.php" -d "key=YOUR_API_KEY&method=base64&json=1" -d "body=BASE64_IMAGE" Response: {"status": 1, "request": "12345678"} → GET /api/res.php?key=...&id=12345678&json=1 → {"status": 1, "request": "7HkP2"}

3. Browser Extension Extension

The CaptchaKings Solver Chrome extension solves captchas directly in your browser without writing code: right-click the captcha image, right-click the answer field, and the answer is filled in automatically.

  • Supported: Amazon AWS WAF challenges (puzzle and text) and regular text/image captchas on any website.
  • Billing: flat $0.80 per 1,000 solves from your CaptchaKings balance.
  • Limitations: runs in Chrome-compatible browsers only; requires marking the captcha and answer field once per site.
  • Last verified: August 30, 2026.

4. Limited — via Generic Image API Limited

The following image-based types can be submitted through the generic image endpoint (POST /api/in.php, method=base64) or the extension. They share the image/text OCR pricing ($0.80 per 1,000 solves) and image-pipeline response times (median 1.2s, p95 2.5s). Accuracy depends on image distortion and is not separately benchmarked per variant — test with your free balance first.

Coordinate / click captchas Click captchas Rotate captchas Slider captchas (image-based) Math captchas Number captchas BotDetect Securimage KeyCaptcha Confident CAPTCHA Icon captcha Grid captcha Capy puzzle CutCaptcha NuCaptcha ProCaptcha Friendly Captcha CaptchaFox Lemin VK captcha BLS captcha ATB captcha Binance slider CyberSiARA Altcha (proof-of-work) Temu captcha

Last verified: August 30, 2026 · Method: Benchmarks & Methodology

5. Planned — Not Available via API Today Planned

Server-side solving for the following JavaScript-challenge and enterprise types is on our roadmap. They are not available through the API today. The landing pages below describe the planned integration and typical use cases; availability is announced on the changelog and AI updates pages. Some of these challenges can still be handled in limited scenarios through the browser extension or generic image pipeline — contact support before building around them.

reCAPTCHA v2 / v3 / Enterprise hCaptcha (standard & Enterprise) Cloudflare Turnstile FunCaptcha / Arkose Labs DataDome Akamai Bot Manager Kasada Imperva / Incapsula PerimeterX / HUMAN Yandex SmartCaptcha TikTok captcha Audio captcha

6. Corrections

Found a page that contradicts this matrix? That is a bug — report it to [email protected] and we will fix the page, not the matrix. See also: About & editorial policy.