How to Integrate a Slider CAPTCHA Recognition API: Coordinate Mode vs. Token Mode Selection, Scaling Conversion, and Trajectory Anti-Interception
A practical guide to integrating slider CAPTCHA recognition APIs, covering coordinate mode vs. token mode, scaling calculations, and human-like drag trajectories to avoid detection.
How to Integrate Cloudflare Turnstile Recognition API: Rendering Detection, Dynamic Parameter Extraction, and Callback Injection
A detailed guide to the complete engineering integration chain for Cloudflare Turnstile recognition API: distinguishing implicit and explicit rendering, accurately extracting dynamic context parameters like sitekey, action, and cData, and combining NexCaptcha's asynchronous interface with callback injection to complete server-side Siteverify validation.
How to Integrate a reCAPTCHA Solving API: Version Detection, Parameter Extraction, Token Validity, and Rejection Troubleshooting
Explanation of reCAPTCHA solving API integration: determine v2, invisible, v3, or Enterprise, prepare websiteURL, websiteKey, pageAction, and other parameters, poll for tokens asynchronously, use tokens within 2 minutes, and troubleshoot rejection by the target site in order.
Captcha Tasks Stuck in Processing: Distinguish \"Slow\" from \"Stuck\" and Troubleshoot in Order
When a captcha task keeps returning processing, the common causes fall into four categories: Token-type tasks are inherently slow, the polling code is flawed, the task parameters contain soft errors, or the proxy or target site has an issue. This article gives you the judgment methods, troubleshooting order, polling pseudocode with an overall timeout, and how to retry and stop losses after a timeout.
How to Integrate a Puppeteer CAPTCHA API: From Parameter Extraction and Token Injection to Troubleshooting Target Site Rejection
A complete guide to integrating a CAPTCHA recognition REST API with Puppeteer: dynamically extract parameters like sitekey, create tasks and poll results, inject tokens into the DOM via page.evaluate and trigger frontend callbacks, and troubleshoot the four common reasons a target site still rejects a returned token—expiry, callback not fired, IP mismatch, and automation fingerprint.
