MGO — Multi-chain Gas Optimizer
Find the cheapest EVM chain across up to 9 networks with savings %. Pay-per-call via x402 on Base.
Connect it
Settings → Connectors → Add custom connector
URL: https://x402-gas-api.vercel.app/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://x402-gas-api.vercel.app/mcp{
"mcpServers": {
"mgo-mcp-server": {
"url": "https://x402-gas-api.vercel.app/mcp"
}
}
}claude mcp add --transport http mgo-mcp-server https://x402-gas-api.vercel.app/mcp{
"servers": {
"mgo-mcp-server": {
"type": "http",
"url": "https://x402-gas-api.vercel.app/mcp"
}
}
}{
"mcpServers": {
"mgo-mcp-server": {
"command": "npx",
"args": [
"-y",
"chain-ops-mgo@1.1.1"
]
}
}
}claude mcp add mgo-mcp-server -- npx -y chain-ops-mgo@1.1.14 tools, verified live
get_gas_demoGet free real-time gas prices for 4 major EVM chains (Ethereum, Base, Arbitrum, Optimism). Rate limited 10/hr.
get_cheapest_chainGet a direct recommendation for the cheapest EVM chain right now with savings %. Free, rate limited.
get_gas_basicFind the cheapest EVM chain before sending a transaction. Compares live gas across Ethereum, Base, Arbitrum & Optimism and returns the cheapest chain with savings % (e.g. 'Use Base — saves 99.8% vs Ethereum'). Use before bridging, deploying a contract, or any tx where you can choose the chain. $0.001 USDC via x402 on Base, no API key.
get_gas_premiumFind the cheapest EVM chain across 9 networks before transacting. Covers Ethereum, Base, Arbitrum, Optimism, BNB, Polygon, Avalanche, zkSync & Hyperliquid; returns the cheapest chain with savings % for cross-chain routing decisions. Use when you need the widest chain coverage to route a tx to the lowest-fee network. $0.002 USDC via x402 on Base, no API key.
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