MetaMask MCP

import type { Config } from "@wagmi/core"; import type { FastMCP } from "fastmcp"; import { getGasPrice } from "@wagmi/core"; import { z } from "zod"; export function registerGetGasPriceTools(server: FastMCP, wagmiConfig: Config): void { server.addTool({ name: "get-gas-price", description: "Fetch the current price of gas (in wei).", parameters: z.object({ chainId: z.coerce.number().optional().describe("ID of chain to use when fetching data."), }), execute: async (args) => { const result = await getGasPrice(wagmiConfig, args); return { content: [ { type: "text", text: result.toString(), }, ], }; }, }); };