Description

CIHWEB Anywhere Cart lets you place a buy button anywhere in an existing WordPress post or page. You do not rebuild your site as a shop.

Register one product and you get a dedicated sales page URL and a QR code for that single product. Share the URL, or drop a block or shortcode below an article and that article becomes the sales page. Buyers check out without creating an account.

This is not a full shopping cart. One order buys one product (quantity and quantity-discounts are supported). For a set, register a single “set” product. If you need a real multi-product cart, a full e-commerce plugin is a better fit. CIHWEB Anywhere Cart is “a quiet payment window you can place in the middle of an article.”

Payment methods (each is off by default; the owner turns on what they need)

Bank transfer — no approval and no external sign-up. Works today. Order you receive it confirm the deposit mark as paid the buyer gets a thank-you mail.
Stripe (credit card) — standard hosted checkout. The buyer pays on Stripe’s own page; card numbers never pass through your site. Payment is confirmed automatically by webhook. Requires your Stripe API key.
JPYC (stablecoin on Polygon, via CIHPAY) — enabled by pasting a shop configuration issued by CIHWEB.

Highlights

A single product becomes a sales page, a block, shortcodes and ad-sized banners (728×90 / 300×250, etc.).
“Returned from the payment page” does not mean “paid.” Returned orders are marked pending; the deposit is confirmed by webhook or by the owner. The same notification arriving many times still marks paid and sends mail only once (idempotency key).
Legal pages (Specified Commercial Transactions Act notice, Terms, Privacy Policy) are generated for you — no need to build static pages.
A built-in contact form, with spam protection that uses no external service and no CAPTCHA.
Postal-code to address auto-fill for Japan, using bundled data — no external lookup service.
QR codes are generated inside the plugin (no external image service).
An “Ask AI how to use it” screen: copy a help prompt to paste into ChatGPT or Claude.

Order status is shown as a simple to-do list (confirm the transfer / ship it / done).

External services

This plugin connects to outside services only when the store owner enables the matching payment method. Every payment method is off by default. No data is sent unless a customer actually chooses that method.

Stripe (credit-card payments) — optional
When Stripe is enabled and a customer chooses to pay by card, the plugin creates a Checkout Session by sending the order amount, an order reference and the product name to the Stripe API (https://api.stripe.com). The customer is then redirected to Stripe’s hosted checkout page (https://checkout.stripe.com) to enter card details; card numbers never pass through your site. Payment is confirmed back to your site by a Stripe webhook, whose signature the plugin verifies. Your own Stripe secret key and webhook signing secret are required.
Provider: Stripe, Inc. — Terms: https://stripe.com/legal — Privacy: https://stripe.com/privacy

CIHPAY / JPYC (stablecoin payments on Polygon) — optional
When JPYC is enabled and a customer chooses it, the plugin sends the order amount, an order reference and the return URL (HMAC-signed with your shop secret) to the CIHPAY gateway (https://cih-pay.com) and redirects the customer there to pay. Payment is confirmed back by a signed webhook. A shop configuration issued by CIHWEB is required.
Provider: CIH GK (CIHWEB) — Site: https://cih-web.com

Japan Post postal-code data — optional, only on demand
Postal-code lookups use data bundled with the plugin; no external service is contacted for a lookup. Only if the owner clicks “Import from Japan Post” does the plugin download the latest ken_all postal-code file from Japan Post (https://www.post.japanpost.jp). Nothing is uploaded; it only downloads that file.
Provider: Japan Post Co., Ltd. — Site policy / terms: https://www.post.japanpost.jp/sitepolicy.html — Privacy: https://www.post.japanpost.jp/privacy/

Trademarks
“JPYC” is a registered trademark of JPYC Inc. “Stripe” is a trademark of Stripe, Inc. This plugin is not provided, endorsed by, or affiliated with JPYC Inc. or Stripe, Inc.; those names are used only to describe the payment methods this plugin can connect to.

Blocks

This plugin provides 1 block.

CIHWEBカート

Installation

Upload the plugin to wp-content/plugins/ (or install the ZIP from Plugins Add New), then activate it.
Go to CIHWEB Anywhere Cart First-time setup and work down the list (shop name, notification email, bank details, etc.).
Add one product (CIHWEB Anywhere Cart Add product) and publish it.
Place a test order yourself and check that the confirmation mail arrives.

Bank transfer needs no approval and no external account — you can accept orders the same day. Your site must be served over HTTPS for Stripe and JPYC.

FAQ

Do I need a shopping cart?: No. This plugin has no cart. One order buys one product. Register a “set” product to sell several items together. Quantity discounts for the same product are supported.
Is a payment gateway required to start?: No. Bank transfer works with no external sign-up. Stripe and JPYC are optional and off until you enable them.
Where do customers enter their card number?: On Stripe’s own hosted checkout page (checkout.stripe.com). Card numbers never pass through your site, which keeps your PCI scope minimal.
Does the postal-code lookup send data to an outside service?: No. The lookup uses data bundled with the plugin and runs entirely on your site. Only an explicit “Import from Japan Post” click downloads an updated data file.
Does the plugin send order or customer data to an AI?: No. The “Ask AI” screen only gives you a help text to copy; the plugin does not send your orders or customer data anywhere.
Are the generated legal pages legal advice?: No. They are templates. Review them for your business and consult a professional where needed before publishing.

Reviews

There are no reviews for this plugin.

Contributors & Developers

“CIHWEB Anywhere Cart” is open source software. The following people have contributed to this plugin.

cihweb

Translate “CIHWEB Anywhere Cart” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

0.28.5

Renamed the plugin to “CIHWEB Anywhere Cart” for the WordPress.org directory (distinctive name using the author’s own brand).

0.28.3

All page CSS/JS is now enqueued (no inline script/style); postal-code import uses wp_handle_upload; added Japan Post terms/privacy links and a trademark note.

0.28.2

WordPress.org review fixes: replaced move_uploaded_file() with wp_handle_upload() for the postal-code import, and removed the unused Domain Path header.

0.28.1

Coding-standards tidy-up for the WordPress.org plugin review (input unslashing).

0.28.0

On the storefront, the Terms / Legal / Privacy links (in the purchase form and footer) now open in a closeable overlay so buyers don’t lose their place.

0.27.4

The product “View sales page” preview now also opens in the closeable overlay (shared with the legal-page preview).

0.27.3

The legal-page “open to check” buttons now preview in an overlay you can close, instead of navigating away.

0.27.2

Fixed: the postal-code test box in settings now shows the town name too, matching the purchase form.

0.27.1

Clearer wording for the optional referral/credit setting (enter your CIHWEB referral code).

0.27.0

Optional “Powered by” credit link on sales pages (off by default; nofollow sponsored) with a referral code.

0.26.1

Minor input-sanitization tidy-up for coding-standards compliance.

0.26.0

Prepared for the WordPress.org directory: English readme, GPLv2 license headers, uninstall.php, and external-service disclosure.

0.25.0

Stripe credit-card payments via Stripe’s standard hosted Checkout. The plugin creates a Checkout Session and receives payment confirmation through a signature-verified webhook; card data never touches the site.

0.24.0

First Stripe integration groundwork (later replaced by the hosted-checkout approach in 0.25.0).

0.23.0 – 0.23.1

Per-product custom input fields (preferred date, size, gift wrapping, etc.), with an in-editor “how to write it” help popup. Updated the built-in AI help document.

0.22.0 – 0.22.2

Pay-what-you-want / donation mode (set price to 0): a large amount field with quick-amount buttons.

0.21.0

Product structured data (schema.org/Product JSON-LD) on sales pages for search engines.

0.20.0

Five selectable card skins for the purchase card.

0.18.0 – 0.18.1

Landing-page product type with embedded call-to-action banners; safer activation (rewrite rules are only flushed when they actually change).

0.13.0 – 0.13.2

Up to three shipping carriers with tracking links; JPYC connection values are set by pasting the shop configuration rather than typed by hand.

0.12.0 – 0.12.3

Bundled Japan postal-code data (prefecture, city and town) with fast local lookup and no external service.

0.7.0 – 0.11.1

Auto-generated legal pages, contact form, postal-code auto-fill, self-generated QR codes, and an admin home dashboard.

0.2.0

Core rewrite: products, orders, price snapshots, tax and shipping, the pre-purchase confirmation screen, bank-transfer flow, and the webhook receiver.

0.1.0

First release.