Bitcoin Cash (BCH) Wallet Integration Guide: Full API Process Explained

Bitcoin Cash (BCH) remains one of the most influential cryptocurrencies in the digital asset ecosystem, ranking consistently among the top 11 by market capitalization despite evolving market dynamics. Originally created as a hard fork of Bitcoin (BTC) in August 2017, BCH was designed to address scalability issues by increasing block size to 8MB—later expanded further—enabling faster transaction processing and lower fees.

This comprehensive guide explores the fundamentals of Bitcoin Cash, its key differences from BTC, real-world advantages, and a detailed walkthrough of BCH wallet integration, including API endpoints for address generation, withdrawals, callbacks, and more. Whether you're a developer, exchange operator, merchant, or blockchain project, this resource will help you seamlessly integrate BCH into your platform.

What Is Bitcoin Cash (BCH)?

Bitcoin Cash (BCH) is a peer-to-peer cryptocurrency that emerged from a hard fork of the original Bitcoin blockchain on August 1, 2017. It was developed to restore Bitcoin’s original vision as a fast, low-cost payment system by increasing block sizes and improving transaction throughput.

Unlike BTC, which prioritizes decentralization and security with smaller blocks, BCH focuses on on-chain scaling. Its larger block size allows more transactions per block, reducing congestion and fees. This makes it ideal for everyday transactions and micropayments.

In November 2018, BCH underwent another contentious hard fork, splitting into two chains: Bitcoin SV (BSV) and Bitcoin ABC. The latter retained the BCH ticker and became the dominant chain due to greater hash rate support.

The most recent BCH halving occurred on April 8, 2020, reducing block rewards from 12.5 to 6.25 BCH—a milestone that underscores its predictable monetary policy and long-term value proposition.

How Does BCH Differ From BTC?

While both BCH and BTC share the same origin, their philosophies and technical implementations have diverged significantly:

Feature	Bitcoin (BTC)	Bitcoin Cash (BCH)
Block Size	1MB (SegWit up to ~4MB)	8MB → 32MB (dynamically adjustable)
Transaction Speed	Slower due to congestion	Faster with higher throughput
Fees	Higher during peak times	Consistently low
Use Case Focus	Digital gold / store of value	Peer-to-peer electronic cash
Community Vision	Conservative protocol changes	Aggressive on-chain scaling

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Because BCH increases block size rather than relying on second-layer solutions like the Lightning Network, it avoids prioritizing high-fee transactions. This ensures equal treatment of all users, making it more accessible for global commerce.

Moreover, the BCH community champions continuous innovation—such as upgrading address formats with the prefix bitcoincash:—to improve usability and reduce user error when sending funds.

Key Advantages of Bitcoin Cash in Real-World Applications

✅ Fast and Affordable Transactions

With an average confirmation time under 10 minutes and fees often below $0.01, BCH enables instant settlements without sacrificing security. Larger blocks mean miners can include more transactions, eliminating bidding wars over block space.

For merchants, this translates into:

Lower processing costs
No chargebacks or fraud risks
Immediate settlement with irreversible transactions

✅ Global, Borderless Payments

BCH operates on a decentralized network accessible to anyone with internet access. There are no geographic restrictions or intermediaries—making it perfect for remittances, cross-border trade, and unbanked populations.

✅ Easy Merchant Integration

Small businesses can start accepting BCH with minimal setup:

Generate a public address via wallet software
Display a QR code at checkout
Use services like Coinbase Commerce or third-party gateways for seamless e-commerce integration

No monthly fees, chargeback liabilities, or currency conversion costs.

✅ Regular Protocol Upgrades

The BCH development community is committed to ongoing improvements:

CashAddr format (bitcoincash: prefix) prevents confusion with BTC addresses
Smart contract enhancements via opcode reinstatements
Scalability upgrades to support future growth

These updates ensure BCH remains competitive and functional in a rapidly evolving crypto landscape.

BCH Wallet Integration: Step-by-Step API Guide

For exchanges, payment processors, gaming platforms, or dApps looking to support Bitcoin Cash, integrating a secure and reliable wallet backend is essential. Below is a structured breakdown of the core API processes required for full BCH integration.

1. Generate Deposit Addresses

Create unique deposit addresses for users to send BCH.

🔧 Endpoint: `POST /mch/address/create`

Required Parameters:

timestamp: Current Unix timestamp
nonce: Random string to prevent replay attacks
sign: MD5 signature using md5(body + API_KEY + nonce + timestamp)
body: JSON array containing:
- merchantId: Your merchant identifier
- coinType: Use 145 for BCH (see Appendix)
- callUrl: Callback URL for receiving deposit notifications

Example Request:

{
  "timestamp": "1535005047",
  "nonce": "10000",
  "sign": "a230def43c1a12b14393880a28d4e005",
  "body": "[{\"merchantId\":\"300015\",\"coinType\":145,\"callUrl\":\"https://yourdomain.com/callback\"}]"
}

Success Response:

{
  "data": {
    "coinType": 145,
    "address": "qzj9dgh2f3n7v8wexmlp6t4kdrna7v5l6u9m2r3s4t"
  },
  "message": "SUCCESS",
  "code": 200
}

💡 Ensure your system supports dynamic address creation and securely stores generated addresses linked to user accounts.

2. Process Withdrawals (User Cash-Out)

Allow users to withdraw BCH to external wallets.

🔧 Endpoint: `POST /mch/withdraw`

Required Parameters:

Same authentication fields (timestamp, nonce, sign)
body includes:
- address: Recipient’s BCH address
- amount: Withdrawal amount (as string)
- merchantId
- mainCoinType & coinType: Both set to 145
- callUrl: For withdrawal status updates
- businessId: Unique transaction ID (must be globally unique)

Example:

{
  "address": "qzj9dgh2f3n7v8wexmlp6t4kdrna7v5l6u9m2r3s4t",
  "amount": "0.5",
  "merchantId": "100109",
  "mainCoinType": "145",
  "coinType": "145",
  "callUrl": "https://yourdomain.com/withdraw-callback",
  "businessId": "TXBCH20250401"
}

Status Codes:

200: Success
4183: Invalid destination address
4034: Unsupported coin type

3. Enable Auto-Payouts (Proxy Pay)

Automate payouts for recurring payments or mass disbursements.

🔧 Endpoint: `POST /mch/withdraw/proxypay`

Same structure as withdrawal but triggers immediate processing if conditions are met (e.g., sufficient balance, valid KYC).

Useful for payroll systems, affiliate programs, or gaming reward distribution.

4. Handle Transaction Callbacks

Receive real-time updates about deposits and withdrawals.

🔧 Callback Structure (`POST` to your `callUrl`):

{
  "address": "qzj9dgh2f3n7v8wexmlp6t4kdrna7v5l6u9m2r3s4t",
  "amount": "100000000",
  "fee": "1000",
  "decimals": "8",
  "txId": "a1b2c3d4e5f6...",
  "status": 3,
  "tradeType": 1,
  "blockHigh": "789123"
}

Status Meanings:

0: Pending review
1: Approved
2: Rejected
3: Confirmed on chain
4: Failed

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Track these callbacks to update user balances and notify customers instantly.

5. Validate BCH Addresses Before Transactions

Prevent errors by verifying address format before processing.

🔧 Endpoint: `POST /mch/check/address`

Input:

{
  "merchantId": "200000",
  "mainCoinType": "145",
  "address": "qzj9dgh2f3n7v8wexmlp6t4kdrna7v5l6u9m2r3s4t"
}

Returns:

200 if valid
4165 if invalid

This step reduces failed transactions and improves user experience.

6. Fetch Supported Coins & Balances

Check which assets your merchant account supports and current balances.

🔧 Endpoint: `POST /mch/support-coins`

{
  "merchantId": "200032",
  "showBalance": true
}

Returns list of coins including:

Symbol (BCH)
Full name (Bitcoin Cash)
Precision (8)
Balance (in base units)
Logo URL

Ideal for dashboard displays or balance syncing.

Frequently Asked Questions (FAQ)

Q: Is Bitcoin Cash still relevant in 2025?

Yes. Despite reduced media attention, BCH maintains strong adoption in regions needing fast, low-cost payments. It ranks in the top tier of cryptocurrencies by network activity and merchant acceptance.

Q: Can I lose funds during BCH wallet integration?

Only if private keys are mishandled or APIs are improperly secured. Always use HMAC signing (sign=md5(body+key+nonce+timestamp)), store API keys securely, and validate all inputs.

Q: Why use a third-party gateway instead of running my own node?

Running a full node requires significant infrastructure and maintenance. Third-party APIs offer faster deployment, scalability, and built-in security—ideal for startups and non-technical teams.

Q: How do I test BCH integration before going live?

Use testnet environments or sandbox APIs provided by service providers. Perform end-to-end tests: generate address → simulate deposit → trigger callback → process withdrawal.

Q: Are there any risks with auto-withdrawals?

Yes. Always implement rate limiting, multi-signature approvals for large withdrawals, and monitor for suspicious patterns. Enable two-factor authentication on all admin interfaces.

Q: Does BCH support smart contracts?

Yes. Through upgrades like CashScript and expanded opcodes, BCH now supports basic smart contracts—ideal for decentralized applications focused on payments and automation.

Final Thoughts

Integrating Bitcoin Cash into your platform offers tangible benefits: low fees, high throughput, global accessibility, and developer-friendly tooling. By following the API structure outlined above—from address creation to secure callbacks—you can build a robust crypto payment system that scales with demand.

Whether you're building an exchange, e-commerce store, or blockchain game, BCH provides a proven foundation for frictionless digital transactions.

👉 Start integrating next-gen crypto payments with confidence—explore secure onboarding tools now.

Core Keywords: Bitcoin Cash, BCH wallet integration, crypto API guide, low fee transactions, fast blockchain payments, merchant crypto acceptance, BCH halving

Bitcoin Cash (BCH) Wallet Integration Guide: Full API Process Explained

What Is Bitcoin Cash (BCH)?

How Does BCH Differ From BTC?

Key Advantages of Bitcoin Cash in Real-World Applications

✅ Fast and Affordable Transactions

✅ Global, Borderless Payments

✅ Easy Merchant Integration

✅ Regular Protocol Upgrades

BCH Wallet Integration: Step-by-Step API Guide

1. Generate Deposit Addresses

🔧 Endpoint: POST /mch/address/create

Required Parameters:

Example Request:

Success Response:

2. Process Withdrawals (User Cash-Out)

🔧 Endpoint: POST /mch/withdraw

Required Parameters:

Example:

Status Codes:

3. Enable Auto-Payouts (Proxy Pay)

🔧 Endpoint: POST /mch/withdraw/proxypay

4. Handle Transaction Callbacks

🔧 Callback Structure (POST to your callUrl):

Status Meanings:

5. Validate BCH Addresses Before Transactions

🔧 Endpoint: POST /mch/check/address

Input:

Returns:

6. Fetch Supported Coins & Balances

🔧 Endpoint: POST /mch/support-coins

Frequently Asked Questions (FAQ)

Q: Is Bitcoin Cash still relevant in 2025?

Q: Can I lose funds during BCH wallet integration?

Q: Why use a third-party gateway instead of running my own node?

Q: How do I test BCH integration before going live?

Q: Are there any risks with auto-withdrawals?

Q: Does BCH support smart contracts?

Final Thoughts

🔧 Endpoint: `POST /mch/address/create`

🔧 Endpoint: `POST /mch/withdraw`

🔧 Endpoint: `POST /mch/withdraw/proxypay`

🔧 Callback Structure (`POST` to your `callUrl`):

🔧 Endpoint: `POST /mch/check/address`

🔧 Endpoint: `POST /mch/support-coins`