MetaMask MCP

import type { Config } from "@wagmi/core"; import type { FastMCP } from "fastmcp"; import { getEnsAddress } from "@wagmi/core"; import { normalize } from "viem/ens"; import { z } from "zod"; export function registerGetENSAddressTools(server: FastMCP, wagmiConfig: Config): void { server.addTool({ name: "get-ens-address", description: "Fetch the ENS address for name.", parameters: z.object({ name: z.string().transform(normalize).describe("Name to get the address for."), chainId: z.coerce.number().optional().describe("ID of chain to use when fetching data."), blockNumber: z.coerce.bigint().optional().describe("Block number to get ENS address at."), }), execute: async (args) => { const result = await getEnsAddress(wagmiConfig, args); return { content: [ { type: "text", text: result ?? "undefined", }, ], }; }, }); };