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Supported Chains

Universal Crypto MCP supports 60+ blockchain networks, including EVM chains, Solana, and other major ecosystems.

Network Summary

Category Networks Status
EVM Mainnets 40+ ✅ Production
EVM Testnets 15+ ✅ Available
Solana Mainnet, Devnet ✅ Production
Other L1s Aptos, Sui, Near, Cosmos 🔄 Coming

EVM Networks

Layer 1

Network Chain ID CAIP-2 Native Token Explorer
Ethereum 1 eip155:1 ETH etherscan.io
BNB Chain 56 eip155:56 BNB bscscan.com
Avalanche C-Chain 43114 eip155:43114 AVAX snowtrace.io
Fantom 250 eip155:250 FTM ftmscan.com
Gnosis 100 eip155:100 xDAI gnosisscan.io

Layer 2 - Optimistic Rollups

Network Chain ID CAIP-2 Native Token Explorer
Arbitrum One 42161 eip155:42161 ETH arbiscan.io
Optimism 10 eip155:10 ETH optimistic.etherscan.io
Base 8453 eip155:8453 ETH basescan.org
Mantle 5000 eip155:5000 MNT explorer.mantle.xyz
Mode 34443 eip155:34443 ETH explorer.mode.network
Blast 81457 eip155:81457 ETH blastscan.io

Layer 2 - ZK Rollups

Network Chain ID CAIP-2 Native Token Explorer
zkSync Era 324 eip155:324 ETH explorer.zksync.io
Polygon zkEVM 1101 eip155:1101 ETH zkevm.polygonscan.com
Linea 59144 eip155:59144 ETH lineascan.build
Scroll 534352 eip155:534352 ETH scrollscan.com

Other EVM Chains

Network Chain ID CAIP-2 Native Token Explorer
Polygon 137 eip155:137 MATIC polygonscan.com
Celo 42220 eip155:42220 CELO celoscan.io
Moonbeam 1284 eip155:1284 GLMR moonscan.io
opBNB 204 eip155:204 BNB opbnbscan.com

Non-EVM Networks

Solana

Network CAIP-2 Status
Mainnet solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp ✅ Production
Devnet solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1 ✅ Available

Coming Soon

Network Status ETA
Aptos 🔄 In Progress Q2 2026
Sui 🔄 In Progress Q2 2026
Near 📋 Planned Q3 2026
Cosmos 📋 Planned Q3 2026

Quick Start

Configure RPC Endpoints

# .env
ETHEREUM_RPC_URL=https://eth-mainnet.g.alchemy.com/v2/YOUR_KEY
ARBITRUM_RPC_URL=https://arb-mainnet.g.alchemy.com/v2/YOUR_KEY
BASE_RPC_URL=https://base-mainnet.g.alchemy.com/v2/YOUR_KEY
OPTIMISM_RPC_URL=https://opt-mainnet.g.alchemy.com/v2/YOUR_KEY
POLYGON_RPC_URL=https://polygon-mainnet.g.alchemy.com/v2/YOUR_KEY

Using Chains in Code

import { getChain, getAllChains } from '@universal-crypto-mcp/core';

// Get a specific chain
const ethereum = getChain('ethereum');
console.log(ethereum.chainId); // 1
console.log(ethereum.rpcUrls); // [...]

// Get all supported chains
const chains = getAllChains();
console.log(`${chains.length} chains supported`);

// Filter by type
const l2Chains = chains.filter(c => c.layer === 2);
const evmChains = chains.filter(c => c.type === 'evm');

CAIP-2 Identifiers

We use CAIP-2 for cross-chain compatibility:

// EVM chains use eip155 namespace
const ethereumId = 'eip155:1';
const baseId = 'eip155:8453';

// Solana uses solana namespace
const solanaMainnet = 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp';

Chain Selection Guide

For Low Fees

  1. Base - ~$0.001 per transaction
  2. Arbitrum - ~$0.01 per transaction
  3. Polygon - ~$0.01 per transaction

For Fast Finality

  1. Solana - 400ms
  2. Arbitrum - ~250ms (soft confirmation)
  3. Base - ~2s

For DeFi Liquidity

  1. Ethereum - Highest TVL
  2. Arbitrum - Growing DeFi ecosystem
  3. Base - Coinbase ecosystem

For Gaming/NFTs

  1. Polygon - Low fees, gaming focus
  2. Base - NFT marketplace support
  3. Solana - Fast, low fees

Gas Estimation

import { estimateGas } from '@universal-crypto-mcp/core';

const estimate = await estimateGas({
  chain: 'base',
  transaction: {
    to: '0x...',
    data: '0x...',
    value: 0n,
  },
});

console.log(`Gas: ${estimate.gasLimit}`);
console.log(`Gas Price: ${estimate.gasPrice} gwei`);
console.log(`Cost: ${estimate.costUSD} USD`);

See Also