Network Details

TAC network information including RPC endpoints, explorers, and chain parameters

This page is updated regularly as the network information is updated.

TAC EVM is a standard EVM chain based on Cosmos with native EVM integration. These are the chain parameters for TAC networks:

Network Configuration

Mainnet

TAC Mainnet - Production network for live applications

Parameter	Value
Network Name	TAC Mainnet
RPC Endpoint	https://rpc.tac.build
Chain ID	239
Currency Symbol	TAC
Block Explorer	https://explorer.tac.build
Fee Schema	EIP-1559
Block Time	< 2 seconds

Quick Add to Wallet

{
  "chainId": "0xEF",
  "chainName": "TAC Mainnet",
  "rpcUrls": ["https://rpc.tac.build"],
  "nativeCurrency": {
    "name": "TAC",
    "symbol": "TAC",
    "decimals": 18
  },
  "blockExplorerUrls": ["https://explorer.tac.build"]
}

Testnet

TAC Saint Petersburg Testnet - Current recommended testnet for development

Parameter	Value
Network Name	TAC Saint Petersburg Testnet
RPC Endpoint	https://spb.rpc.tac.build
Chain ID	2391
Currency Symbol	TAC
Block Explorer	https://spb.explorer.tac.build
Fee Schema	EIP-1559
Block Time	< 2 seconds
Faucet	https://spb.faucet.tac.build

Quick Add to Wallet

{
  "chainId": "0x957",
  "chainName": "TAC Saint Petersburg Testnet",
  "rpcUrls": ["https://spb.rpc.tac.build"],
  "nativeCurrency": {
    "name": "TAC",
    "symbol": "TAC",
    "decimals": 18
  },
  "blockExplorerUrls": ["https://spb.explorer.tac.build"]
}

Getting Testnet Tokens

• Get TAC on TAC Testnet Faucet
• Get TON on TON Testnet Faucet

Common Integration Issues

MetaMask Setup

Adding TAC Networks:

1. Open MetaMask settings
2. Go to “Networks” → “Add Network”
3. Use the network parameters above
4. Save and switch to the new network

Common Issues:

• Ensure Chain ID is entered as a number (239, 2391)
• Verify RPC URLs are correct
• Check that you’re using the latest MetaMask version

Contract Verification

Verification Steps:

1. Deploy your contract to the network
2. Wait for a few block confirmations
3. Use Hardhat’s verify plugin or manual verification
4. Check the block explorer for verification status

Troubleshooting:

• Ensure exact constructor arguments
• Verify Solidity version matches
• Check that libraries are linked correctly