Integrating Shopify with SUBTC Protocol — Overview & Strategy

The SUBTC Protocol provides a secure Bitcoin execution layer for e-commerce platforms. Integrating it with Shopify allows merchants to accept BTC payments, manage wallets, and automate order fulfillment without handling private keys directly.

Base API: https://subtc.net/api

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1. Architecture Overview

Core Components:

• Shopify Storefront: Customer-facing interface for product sales.

• SUBTC Protocol: Handles wallet creation, BTC payments, and confirmations.

• API Connector / Middleware: Server-side application in Node.js, Go, or Python.

• Webhook System: Automates order status updates upon BTC confirmation.

Flow:

Customer → Shopify Checkout → Middleware → SUBTC API → BTC Network → Confirmation → Shopify Order Fulfillment

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2. Wallet Management

Each customer or order can have a dedicated SUBTC wallet:

1. Create Wallet

curl -sS -X POST "https://api.subtc.net/v1/btc?mode=wallet_create" \
-H "X-SUBTC-KEY: $KEY" \
-H "Content-Type: application/json"

1. Generate Receiving Address

curl -sS -X POST "https://api.subtc.net/v1/btc?mode=wallet_receive" \
-H "X-SUBTC-KEY: $KEY" \
-H "Content-Type: application/json" \
-d '{"wallet_id":"<wallet_id>"}'

1. Monitor Payment

wallet_poll → simple, manual polling

wallet_wait_event → webhook-based, automated confirmation

curl -sS -X POST "https://api.subtc.net/v1/btc?mode=wallet_wait_event" \
-H "X-SUBTC-KEY: $KEY" \
-H "Content-Type: application/json" \
-d '{
  "wallet_id":"<wallet_id>",
  "address":"<customer_address>",
  "expected_sat":,
  "timeout_sec":600,
  "callback_url":"https://yourserver.com/subtc-webhook"
}'

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1. Payment Flow

1. Customer selects product → Checkout

1. Shopify triggers middleware to create wallet & address

1. Display BTC payment QR code on Shopify checkout page

1. Customer sends BTC → Middleware monitors via SUBTC API

1. On confirmation → Shopify order status updated automatically

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1. Automation & AI Integration

Use AI agents to:

Monitor payments

Notify customers automatically

Adjust inventory or pricing dynamically

Webhook approach ensures near real-time processing without constant API polling

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1. Security Best Practices

Never store SUBTC-KEY in Shopify database → use server-side .env variables

Use Docker for isolating middleware and SUBTC API integration

Daily transfer of funds from hot wallets to cold storage

Apply X-SUBTC-IDEMPOTENCY header to prevent duplicate payments

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1. Use Cases

Online Retail: Accept BTC for products & digital goods

Subscriptions: Monthly content or services paid via BTC

Donations or Crowdfunding: Automate contributions in BTC

Digital Products: Instant delivery upon BTC payment confirmation

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1. Developer Notes

Shopify supports webhooks & server-side apps → ideal for SUBTC integration

Middleware can be written in Go, Python, or Node.js

Test integration first using SUBTC Testnet before Mainnet deployment

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1. Roadmap

1. Start with basic BTC payments on Shopify

1. Implement tiered subscription or product-based wallets

1. Integrate AI-based analytics for dynamic pricing and order automation

1. Expand to multi-store setups or cross-platform e-commerce solutions

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Conclusion

Integrating Shopify + SUBTC Protocol enables:

Automated Bitcoin payments

Secure wallet management without exposing private keys

Scalable e-commerce operations

Developer-friendly and AI-ready architecture

Shopify + SUBTC = Autonomous BTC payments for merchants without the complexity.