nCaptcha

Revolutionary way to fight spam!

nCaptcha is a decentralized, Web3-based CAPTCHA system built on NEAR Protocol. Instead of puzzles, it uses micro‑transactions and on‑chain reputation to stop bots. The result? Better protection, smoother UX.

🔄 How It Works

1. Micro‑Payments
Users pay a tiny fee (fractions of a cent) to verify they’re human. This cost deters bots from spamming—because at scale, it gets expensive.

2. Reputation-Based Access
Trusted users build on‑chain reputation. Once verified, future interactions can skip payments entirely, keeping things frictionless.

📦 Key Features

• Built on NEAR smart contracts (Rust-based)

• Open-source JavaScript integration

• Mobile-ready, Web2-friendly

• WordPress plugins available

• Works with Contact Form 7, Gravity Forms, and others

✅ Why It’s Better

• No image puzzles or checkboxes

• Bots pay to play—users don’t

• Fully transparent and open-source

• Rewards users with on-chain reputation

🧩 Real Use Cases

nCaptcha is already live with projects like Techbridge and NEAR Catalog, helping stop spam across contact forms, signup flows, and comment sections.

🔧 Easy Developer Integration

• Add a JS snippet or install via NPM

• Choose: micro-payment or reputation mode

• Use with or without a NEAR wallet

• Zero back-end setup required with plugins

💬 What the Team Says

“Let bots pay you for trying to abuse your forms. Spoiler: they won’t.”

⚖️ Quick Comparison

🚀 Final Thoughts

nCaptcha makes spam protection smarter and more user-friendly. It turns CAPTCHA into a decentralized, fair, and transparent tool for websites in both Web2 and Web3 worlds.

Updated: July 16, 2025