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
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Built on NEAR smart contracts (Rust-based)
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Open-source JavaScript integration
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Mobile-ready, Web2-friendly
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WordPress plugins available
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Works with Contact Form 7, Gravity Forms, and others
✅ Why It’s Better
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No image puzzles or checkboxes
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Bots pay to play—users don’t
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Fully transparent and open-source
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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
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Add a JS snippet or install via NPM
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Choose: micro-payment or reputation mode
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Use with or without a NEAR wallet
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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
Traditional CAPTCHA | nCaptcha | |
---|---|---|
User Friction | Moderate | Very low |
Bot Defense | Bypassable by AI | Economic deterrent |
Privacy | Tracks user data | No personal data needed |
Integration | Backend required | Front-end ready + plugins |
User Rewards | None | On-chain reputation |
🚀 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
Top comment
Excellent anti-spam, better than other capchas
A good anti-bot tool
avoid spam and make comment more value
Convenient tool
Cool stuff
it is good.
Ncapcha is not bad