TransX402 Paywall lets site owners sell individual articles with IDRX stablecoin micropayments. Configure your TransX402 API key, set prices in IDR, and enable paywalls per post.

This plugin requires a free TransX402 account and API key (sandbox or live). All plugin code is fully available; payment settlement is provided by the TransX402 service.

Features

Server-side settlement — your API key stays on the server
Payment history stored in your WordPress database
Return visits unlock via a signed HttpOnly access cookie
Preview modes: first paragraph, word count, or excerpt
Overlay, inline, and blur paywall styles
Paywalled content gated on singular views, REST API, RSS, excerpts, and search

Source

Development repository: https://github.com/campinvestment/transx402-wordpress-plugin

External services

This plugin connects to external services to process payments and display admin links:

TransX402 API (https://api.transx402.com, or an admin-configured allowlisted facilitator URL) — payment facilitation and verification. The site sends the API key (server-side only), payment signatures, and transaction hashes. No visitor API keys are exposed in the browser. Terms: https://transx402.com/terms. Privacy: https://transx402.com/privacy
Block explorers (https://basescan.org, https://testnet-explorer.onchainfolio.com) — used only in the WordPress admin payments list to link transaction hashes. No visitor data is sent to these services.

Service provider: Camp Investment / TransX402 — https://transx402.com

Privacy

Stores payment history (payer wallet address, transaction hash, post ID, amount) in your WordPress database.
Sends payment payloads and transaction hashes to the TransX402 facilitator when a visitor pays.
Sets an HttpOnly, SameSite=Lax signed access cookie (Secure when the site uses HTTPS) after a successful payment so return visits can unlock content without re-paying.

Credits

@transx402/client v0.2.5 (MIT) — browser payment SDK, bundled at assets/vendor/transx402.browser.min.js. Source and build instructions: https://github.com/campinvestment/transx402-client. Sync with ./scripts/sync-client.sh.
Bundled transitive dependencies (MIT/BSD as noted in the vendor file footer) include noble-hashes, noble-curves, buffer, and ieee754.