Nextcaptcha: CAPTCHA Solver records 0 monthly visits with — month-over-month growth and Freemium, Paid pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.
Automated reCAPTCHA and Turnstile solving for developers
High-quality human data for AI training, evaluation, and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chromewebstore.google.com | prolific.com |
| Pricing Model | Freemium, Paid | Paid |
| Monthly Visits | 0 (0) | 18.7M (18,697,671) |
| MoM Traffic Delta | 0 (—) | -352.04K (-1.8%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 0 | 12.98M |
| User Rating | 4.4 | 4.6 |
| Supported Platforms | Browser Extension | Website |
Automated reCAPTCHA and Turnstile solving for developers
Handles reCAPTCHA v2, v2 Invisible, v2 Enterprise, reCAPTCHA v3, reCAPTCHA Mobile and Cloudflare Turnstile challenges.
Integrate token generation directly into applications, scrapers or automation pipelines through a documented API.
Automatically recognize and solve CAPTCHAs in the browser while you work, powered by the nextcaptcha.com service.
The vendor advertises a 99% success rate with average solve times of roughly 3 to 6 seconds depending on challenge type.
High-quality human data for AI training, evaluation, and research
Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.
Collect human preference data for model fine-tuning, run safety evaluations and red-teaming, and use a feedback API to plug humans into automated pipelines.
Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.
Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
AI-powered CAPTCHA solving API built for scale
AI-powered CAPTCHA solving API built for scale
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.
SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
Cloud browsers for AI agents, scraping, and automation that won't get blocked
Cloud browsers for AI agents, scraping, and automation that won't get blocked
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Rewrite AI-generated text into natural, human-sounding prose
Rewrite AI-generated text into natural, human-sounding prose
AI CAPTCHA recognition API for reCAPTCHA, Cloudflare and more
AI CAPTCHA recognition API for reCAPTCHA, Cloudflare and more
SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
