Supported Networks

PayIn supports multiple blockchain networks across different protocols, providing flexibility for your payment integration. Each network has both testnet (for development) and mainnet (for production) versions.

Network Overview

PayIn currently supports 4 blockchain protocols across 8 networks:

Protocol	Testnet	Mainnet	Status
EVM	Ethereum Sepolia, Polygon Amoy	Ethereum, Polygon	✅ Active
Tron	Tron Nile	Tron Mainnet	✅ Active
Solana	Solana Devnet	Solana Mainnet	✅ Active
Bitcoin	-	-	🚧 Coming Soon

Testnet Networks

Testnet networks use test cryptocurrencies with no real value. Perfect for development and testing.

Ethereum Sepolia

The official Ethereum testnet, replacing Goerli and Rinkeby.

Property	Value
Chain ID	`ethereum-sepolia`
Protocol	EVM
Network Type	Testnet
Block Confirmations	3 blocks (~36 seconds)
Block Time	~12 seconds
Block Explorer	sepolia.etherscan.io
Native Token	Sepolia ETH (test token)

Getting Test ETH:

Supported Tokens:

USDC: 0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238

RPC Providers:

Alchemy, Infura, PublicNode

When to Use:

Testing Ethereum-based integrations
Developing smart contract interactions
Load testing with EVM transactions

Polygon Amoy

The new Polygon testnet, replacing Mumbai.

Property	Value
Chain ID	`polygon-amoy`
Protocol	EVM
Network Type	Testnet
Block Confirmations	10 blocks (~20 seconds)
Block Time	~2 seconds
Block Explorer	amoy.polygonscan.com
Native Token	Test MATIC

Getting Test MATIC:

Supported Tokens:

USDC: 0x41E94Eb019C0762f9Bfcf9Fb1E58725BfB0e7582

RPC Providers:

Alchemy, Ankr, PublicNode

When to Use:

Testing Layer 2 performance
Low-cost high-volume testing
Fast confirmation testing

Tron Nile

Tron's official testnet for developers.

Property	Value
Chain ID	`tron-nile`
Protocol	Tron
Network Type	Testnet
Block Confirmations	3 blocks (~9 seconds)
Block Time	~3 seconds
Block Explorer	nile.tronscan.org
Native Token	Test TRX

Getting Test TRX:

TronGrid Nile Faucet
Note: Faucet may have daily limits

Supported Tokens:

USDT: TXYZopYRdj2D9XRtbG411XZZ3kM5VkAeBf

RPC Providers:

TronGrid

When to Use:

Testing Tron-based integrations
USDT on Tron testing
Energy/bandwidth optimization testing

Solana Devnet

Solana's development network with fast finality.

Property	Value
Chain ID	`solana-devnet`
Protocol	Solana
Network Type	Testnet
Block Confirmations	1 block (~400ms)
Block Time	~400ms
Block Explorer	explorer.solana.com
Native Token	Test SOL

Getting Test SOL:

bash

# Using Solana CLI
solana airdrop 2 <YOUR_ADDRESS> --url devnet

# Or use web faucet
# Visit: https://faucet.solana.com/

Supported Tokens:

USDC: 4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU

RPC Providers:

PublicNode, Official Solana RPC

When to Use:

Testing ultra-fast confirmations
High-throughput testing
Solana-specific features

Mainnet Networks

Mainnet networks use real cryptocurrencies with actual value. Use only for production.

Real Money Warning

Mainnet transactions involve real cryptocurrency with actual financial value. Always test thoroughly on testnet first.

Ethereum Mainnet

The primary Ethereum network.

Property	Value
Chain ID	`ethereum-mainnet`
Protocol	EVM
Network Type	Mainnet
Block Confirmations	12 blocks (~2.4 minutes)
Block Time	~12 seconds
Block Explorer	etherscan.io
Native Token	ETH

Supported Tokens:

USDT: 0xdAC17F958D2ee523a2206206994597C13D831ec7
USDC: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
DAI: Coming Soon

RPC Providers:

Alchemy, Infura, PublicNode

Transaction Fees:

Gas prices vary: typically 20-50 Gwei
Average transaction cost: $5-20 USD
High during network congestion

When to Use:

Production Ethereum payments
Maximum security requirements
Large transaction volumes

Polygon Mainnet

High-performance Layer 2 Ethereum scaling solution.

Property	Value
Chain ID	`polygon-mainnet`
Protocol	EVM
Network Type	Mainnet
Block Confirmations	128 blocks (~4.3 minutes)
Block Time	~2 seconds
Block Explorer	polygonscan.com
Native Token	MATIC

Supported Tokens:

USDT: 0xc2132D05D31c914a87C6611C10748AEb04B58e8F
USDC: 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359
DAI: Coming Soon

RPC Providers:

Alchemy, Ankr, PublicNode

Transaction Fees:

Extremely low: $0.01-0.10 USD per transaction
Predictable costs
Fast finality

When to Use:

Cost-sensitive applications
High-frequency microtransactions
Fast confirmation requirements

Tron Mainnet

High-throughput blockchain optimized for USDT transfers.

Property	Value
Chain ID	`tron-mainnet`
Protocol	Tron
Network Type	Mainnet
Block Confirmations	19 blocks (~57 seconds)
Block Time	~3 seconds
Block Explorer	tronscan.org
Native Token	TRX

Supported Tokens:

USDT: TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t

RPC Providers:

TronGrid

Transaction Fees:

Very low: ~$1 USD for most transactions
Energy/bandwidth optimization available
Popular for USDT transfers

When to Use:

USDT-focused applications
Asia-Pacific market
Cost-effective transfers

Solana Mainnet

Ultra-fast blockchain with sub-second finality.

Property	Value
Chain ID	`solana-mainnet`
Protocol	Solana
Network Type	Mainnet
Block Confirmations	1 block (~400ms)
Block Time	~400ms
Block Explorer	explorer.solana.com
Native Token	SOL

Supported Tokens:

USDC: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v

RPC Providers:

PublicNode, Official Solana RPC

Transaction Fees:

Ultra-low: $0.00025 USD per transaction
Fastest finality
High throughput

When to Use:

Ultra-fast payment confirmation
Gaming and real-time applications
Maximum cost efficiency

Choosing the Right Network

Decision Matrix

Use Case	Recommended Network	Reason
Development & Testing	Ethereum Sepolia or Polygon Amoy	Well-supported testnets, easy to get test tokens
Cost-Sensitive Production	Polygon or Solana	Very low transaction fees
Maximum Security	Ethereum Mainnet	Most established and secure
USDT Focus	Tron Mainnet	Largest USDT circulation
Speed Priority	Solana	Sub-second finality
Asia-Pacific Market	Tron	Popular in the region
General Purpose	Polygon Mainnet	Good balance of cost, speed, security

Cost Comparison

Network	Avg. Transaction Cost	Speed	Security
Ethereum	$5-20	Medium	Highest
Polygon	$0.01-0.10	Fast	High
Tron	~$1	Fast	High
Solana	$0.00025	Fastest	High

Using Networks in Your Code

With MCP Server

Specify the chain ID when creating orders or deposits:

Create a payment order:
- Amount: 10 USDT
- Chain: polygon-amoy  // Use chain ID from the tables above

With Direct API

TypeScript Example:

typescript

const response = await fetch(`${PAYIN_API_URL}/orders`, {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': API_KEY
  },
  body: JSON.stringify({
    orderReference: 'ORDER-001',
    amount: '10.00',
    currency: 'USDT',
    chainId: 'polygon-amoy',  // Specify chain ID here
    successUrl: 'https://yoursite.com/success',
    cancelUrl: 'https://yoursite.com/cancel'
  })
});

Multi-Chain Strategy

For Order Payments (Single-Chain)

Orders are created on a specific chain at creation time:

User selects chain during checkout
Payment address is chain-specific
Only monitors the selected chain

Example Flow:

1. User selects "Pay with USDT on Polygon"
2. Create order with chainId: 'polygon-mainnet'
3. System monitors only Polygon for this payment
4. Payment completed on Polygon

For Deposit Services (Multi-Chain)

Deposits support multiple chains within the same protocol:

User receives one address per protocol
PayIn monitors all protocol chains automatically
User can deposit from any supported chain

Example Flow:

1. User binds USDT deposit address (EVM protocol)
2. System monitors: Ethereum + Polygon (all EVM chains)
3. User can deposit USDT from either Ethereum or Polygon
4. All deposits are credited to the same user account

Network Status & Health

Monitoring Network Health

Check real-time network status through MCP or API:

With MCP:

What's the current status of ethereum-sepolia network?

With API:

typescript

const response = await fetch(`${PAYIN_API_URL}/monitoring/status`, {
  headers: { 'X-API-Key': API_KEY }
});
const status = await response.json();
console.log(status.chains['ethereum-sepolia']);

Common Network Issues

Slow Confirmations:

Check block explorer for network congestion
Wait for additional blocks if needed
Consider using faster network (Polygon/Solana)

High Fees (Ethereum):

Use Polygon or Solana for cost-sensitive transactions
Wait for off-peak hours
Batch transactions when possible

RPC Issues:

PayIn automatically switches between RPC providers
No action needed in most cases
Check status page if persistent issues

Next Steps

Supported Tokens - View available stablecoins
API Integration - Integrate directly with APIs
Quick Start - Get started with MCP

FAQs

Q: Can I change the network after creating an order? No, the network is fixed when an order is created. Users must pay on the specified network.

Q: Which network is fastest? Solana has the fastest finality (~400ms), followed by Polygon (~2 seconds), Tron (~3 seconds), and Ethereum (~12 seconds).

Q: Which network is cheapest? Solana is the cheapest ($0.00025), followed by Polygon ($0.01-0.10), Tron (~$1), and Ethereum ($5-20).

Q: Can users deposit from multiple networks to the same address? Yes, for deposit services. The same address can receive payments from all chains within the same protocol family (e.g., Ethereum + Polygon for EVM).

Q: What happens if a user sends to the wrong network? Funds sent to the wrong network cannot be recovered. Always verify the network matches the payment address protocol. PayIn's payment pages include clear network warnings.

Q: Do you support testnets and mainnets for all networks? Yes, all networks have both testnet and mainnet versions available.

Supported Networks ​

Network Overview ​

Testnet Networks ​

Ethereum Sepolia ​

Polygon Amoy ​

Tron Nile ​

Solana Devnet ​

Mainnet Networks ​

Ethereum Mainnet ​

Polygon Mainnet ​

Tron Mainnet ​

Solana Mainnet ​

Choosing the Right Network ​

Decision Matrix ​

Cost Comparison ​

Using Networks in Your Code ​

With MCP Server ​

With Direct API ​

Multi-Chain Strategy ​

For Order Payments (Single-Chain) ​

For Deposit Services (Multi-Chain) ​

Network Status & Health ​

Monitoring Network Health ​

Common Network Issues ​

Next Steps ​

FAQs ​

Supported Networks

Network Overview

Testnet Networks

Ethereum Sepolia

Polygon Amoy

Tron Nile

Solana Devnet

Mainnet Networks

Ethereum Mainnet

Polygon Mainnet

Tron Mainnet

Solana Mainnet

Choosing the Right Network

Decision Matrix

Cost Comparison

Using Networks in Your Code

With MCP Server

With Direct API

Multi-Chain Strategy

For Order Payments (Single-Chain)

For Deposit Services (Multi-Chain)

Network Status & Health

Monitoring Network Health

Common Network Issues

Next Steps

FAQs