Description
StableDeliver adds a Pay with Crypto (USDT / USDC / BTC) gateway to WooCommerce.
- Non-custodial. Payments go directly to your own wallet. StableDeliver never holds funds and never has your keys.
- Verified on-chain. Each payment is confirmed on the blockchain before the order is completed.
- WooCommerce completes the order. Once the payment is verified, the plugin calls WooCommerce’s own
payment_complete()— WooCommerce then completes the order and releases the product exactly as it always does. Your fulfilment workflow is unchanged. - Classic and Blocks checkout. The gateway renders on both the classic (shortcode) checkout and the newer WooCommerce Blocks checkout.
- HPOS-ready. Compatible with WooCommerce High-Performance Order Storage (custom order tables).
- Test mode. Use a
sd_test_API key to complete real end-to-end orders with no chain calls and no money while you set things up. - Multi-chain. USDT / USDC on Ethereum, Polygon, BNB Smart Chain, Arbitrum and Tron; BTC on Bitcoin.
The buyer pays on a hosted StableDeliver checkout, then returns to your WooCommerce order-received page. A signed webhook (HMAC-SHA256, with a 5-minute replay window) confirms the payment to your site — a forged or stale webhook can never complete an order.
You need a free StableDeliver account (https://stabledeliver.com) to get an API key.
External service
This plugin connects to StableDeliver (https://stabledeliver.com), an external service, to create payment orders and verify cryptocurrency payments on-chain. StableDeliver performs the substantive work of this gateway: it confirms the exact on-chain transfer to the seller’s own wallet (non-custodial settlement) and, once verified, triggers fulfilment on your site via a signed webhook.
What is sent, and when: when a buyer chooses crypto at checkout, the plugin sends the order amount, currency and an order reference (your WooCommerce order ID) to the StableDeliver API to create a checkout. It then receives a signed webhook when the payment is verified. No customer payment credentials, card numbers, private keys or seed phrases are handled by this plugin.
- Terms of Use: https://stabledeliver.com/terms
- Privacy Policy: https://stabledeliver.com/privacy
Screenshots
Installation
- Upload the plugin to
/wp-content/plugins/and activate it, or install the ZIP from Plugins → Add New → Upload. - In your StableDeliver dashboard → Settings → Developers, create an API key (start with a test key) and add this site as a webhook endpoint using the URL shown in the plugin settings. Copy the signing secret.
- In WordPress: WooCommerce → Settings → Payments, enable Pay with Crypto (USDT / USDC / BTC), then click Manage and paste your API key and webhook signing secret.
- Edit a Product and set its StableDeliver product ID (the product UUID from your StableDeliver dashboard — its price, chain and asset are what gets charged).
- Buy it with the crypto gateway to test. With a test key, complete the order from your StableDeliver dashboard / API
simulate_payment— WooCommerce will complete the order.
FAQ
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Is this custodial? Do you hold my money?
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No. Payments go straight from the buyer to your own wallet address. StableDeliver only verifies the on-chain payment and notifies your site.
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Which coins and chains?
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USDT and USDC on Ethereum, Polygon, BNB Smart Chain, Arbitrum and Tron; BTC on Bitcoin.
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Does it work with the Blocks checkout?
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Yes. The gateway registers on both the classic checkout and the WooCommerce Blocks checkout.
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Is it compatible with High-Performance Order Storage (HPOS)?
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Yes. The plugin declares HPOS compatibility and reads/writes orders through the WooCommerce order API.
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What happens if StableDeliver is unreachable at checkout?
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The buyer gets a clear error and no payment is taken. The order is never silently completed.
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How is the webhook secured?
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Every webhook is signed with HMAC-SHA256 over the raw body and a timestamp. The plugin rejects any request with an invalid signature or a timestamp older than 5 minutes, and de-duplicates repeated events so a retried webhook can never complete an order twice.
Reviews
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Contributors & Developers
“StableDeliver Crypto Payments for WooCommerce” is open source software. The following people have contributed to this plugin.
Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.1
- Fix: align the plugin text domain with the approved plugin slug (stabledeliver-crypto-payments) so translations load correctly. No functional changes.
1.0.0
- Initial release: WooCommerce gateway (classic + Blocks checkout), HPOS compatibility, hosted checkout redirect, signed-webhook fulfilment, test mode, per-product mapping, on-chain details on the order screen.