MetaMask MCP

import type { Config } from "@wagmi/core"; import type { FastMCP } from "fastmcp"; import { getEnsName } from "@wagmi/core"; import { Address } from "abitype/zod"; import { z } from "zod"; export function registerGetENSNameTools(server: FastMCP, wagmiConfig: Config): void { server.addTool({ name: "get-ens-name", description: "Fetch the primary ENS name for address.", parameters: z.object({ address: Address.describe("Address to get the name 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 name at."), }), execute: async (args) => { const result = await getEnsName(wagmiConfig, args); return { content: [ { type: "text", text: result ?? "undefined", }, ], }; }, }); };