Title: A-Pay Web3 AI Paywall
Author: apay98
Published: <strong>September 30, 2026</strong>
Last modified: September 30, 2026

---

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# A-Pay Web3 AI Paywall

 By [apay98](https://profiles.wordpress.org/apay98/)

[Download](https://downloads.wordpress.org/plugin/apay-web3-ai-paywall.0.1.8.zip)

 * [Details](https://wordpress.org/plugins/apay-web3-ai-paywall/#description)
 * [Reviews](https://wordpress.org/plugins/apay-web3-ai-paywall/#reviews)
 *  [Installation](https://wordpress.org/plugins/apay-web3-ai-paywall/#installation)
 * [Development](https://wordpress.org/plugins/apay-web3-ai-paywall/#developers)

 [Support](https://wordpress.org/support/plugin/apay-web3-ai-paywall/)

## Description

**A-Pay Web3 AI Paywall** is an HTTP 402 Web3 micropayment gatekeeper for WordPress&
WooCommerce that allows website owners to monetize autonomous AI crawlers, scrapers,
and LLM bots (OpenAI GPTBot, Anthropic ClaudeBot, PerplexityBot, ByteSpider, and
Meta-ExternalAgent) on Base Layer 2.

### 🌟 Key Features

 * **100% Free for Real Humans**: Human visitors on desktop and mobile web browsers(
   Chrome, Safari, Firefox, Edge) browse your site completely free without any paywalls,
   popups, or captchas.
 * **SEO Protected**: Googlebot, Bingbot, DuckDuckBot, and other search engines 
   are automatically whitelisted so your search rankings and indexing remain completely
   intact.
 * **HTTP 402 Web3 Challenge Gate**: Autonomous AI crawlers are presented with a
   cryptographic HTTP 402 Payment Required challenge specifying Base Layer 2 settlement
   details under EIP-712 standards.
 * **Voucher & Nonce Verification**: Validates incoming Authorization headers, strictly
   checks payment amounts against required pricing, verifies EVM address formats,
   and enforces single-use session nonces to prevent replay attacks.
 * **Dual Settlement Rails**: Accept USDC (Circle native) or $APAY protocol tokens
   on Base Mainnet (Chain ID 8453) or Base Sepolia Testnet (Chain ID 84532).
 * **Instant WordPress Setup**: Zero complex coding required. Simply install, activate,
   paste your Base wallet address, and your content is protected immediately.

### 3rd Party Service Disclosure

This plugin interacts with external decentralized infrastructure and protocols to
facilitate autonomous payments:

 1. **A-Pay Protocol Portal & Telemetry (`https://apay-network.vercel.app`)**:
 2.  * **Purpose**: Provides developer protocol documentation, health probes, token
       contract verification, and EIP-712 scheme metadata.
     * **Terms of Service**: https://apay-network.vercel.app
     * **Privacy Policy**: https://apay-network.vercel.app
 3. **Base Layer 2 Decentralized Network (`https://mainnet.base.org` / `https://sepolia.
    base.org`)**:
 4.  * **Purpose**: Used for on-chain cryptographic transaction verification and router
       contract settlement (`0x71434344beEF9C44fF3BC95572bEB7bFB8847ec6`).
     * **Terms of Service**: https://base.org

## Installation

 1. Upload the `apay-web3-ai-paywall` folder to the `/wp-content/plugins/` directory,
    or install the plugin directly through the WordPress plugins screen.
 2. Activate the plugin through the **Plugins** screen in WordPress.
 3. Navigate to **Settings -> A-Pay Web3 AI Paywall**.
 4. Enter your Base L2 EVM wallet address to receive payments.
 5. Choose your pricing (default: $0.001 USDC / 4.0 $APAY) and save changes.

## FAQ

### Will this plugin block my regular website visitors?

No. Regular human visitors browsing with desktop or mobile browsers are completely
whitelisted and will never see paywalls, captchas, or payment prompts.

### Will this affect my Google Search SEO ranking?

No. Googlebot, Bingbot, DuckDuckBot, and verified search engine crawlers are automatically
whitelisted so your SEO rankings and search previews remain unaffected.

### Which AI bots are challenged with HTTP 402?

By default, the plugin identifies: `gptbot`, `chatgpt-user`, `claudebot`, `claude-
web`, `anthropic-ai`, `perplexitybot`, `bytespider`, `ccbot`, `google-extended`,`
cohere-ai`, `diffbot`, `facebookbot`, `omgilibot`, `applebot-extended`, `meta-externalagent`,`
amazonbot`, `timpibot`, and `youbot`. You can also add custom bot user-agents in
Settings.

### Do I need a credit card or bank account?

No. Micropayments settle directly to your non-custodial EVM wallet address on Base
L2.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“A-Pay Web3 AI Paywall” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ apay98 ](https://profiles.wordpress.org/apay98/)

[Translate “A-Pay Web3 AI Paywall” into your language.](https://translate.wordpress.org/projects/wp-plugins/apay-web3-ai-paywall)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/apay-web3-ai-paywall/),
check out the [SVN repository](https://plugins.svn.wordpress.org/apay-web3-ai-paywall/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/apay-web3-ai-paywall/)
by [RSS](https://plugins.trac.wordpress.org/log/apay-web3-ai-paywall/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 0.1.8

 * Renamed plugin display name and slug to A-Pay Web3 AI Paywall.
 * Strictly sanitize and unslash all HTTP request headers and authorization inputs.
 * Added server-side nonce issuing and single-use validation to prevent voucher 
   replay.
 * Added minimum payment amount validation against required pricing.
 * Removed duplicate Tested up to header from main PHP file.
 * Limited tags to 5 directory-compliant tags and short description to 135 characters.

## Meta

 *  Version **0.1.8**
 *  Last updated **1 day ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.8 or higher **
 *  Tested up to **7.1.2**
 *  PHP version ** 7.4 or higher **
 * Tags
 * [gptbot](https://wordpress.org/plugins/tags/gptbot/)[micropayments](https://wordpress.org/plugins/tags/micropayments/)
   [monetization](https://wordpress.org/plugins/tags/monetization/)[web3](https://wordpress.org/plugins/tags/web3/)
 *  [Advanced View](https://wordpress.org/plugins/apay-web3-ai-paywall/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/apay-web3-ai-paywall/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/apay-web3-ai-paywall/reviews/)

## Contributors

 *   [ apay98 ](https://profiles.wordpress.org/apay98/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/apay-web3-ai-paywall/)