MetaMask MCP

import type { Config } from "@wagmi/core"; import type { FastMCP } from "fastmcp"; import { getTransaction } from "@wagmi/core"; import { z } from "zod"; import { TransactionHash } from "../utils/evm-schema"; import { JSONStringify } from "../utils/json-stringify"; export function registerGetTransactionTools(server: FastMCP, wagmiConfig: Config): void { server.addTool({ name: "get-transaction", description: "Fetch transaction given hash or block identifiers.", parameters: z.object({ hash: TransactionHash.describe("Hash to get transaction."), chainId: z.coerce.number().optional().describe("ID of chain to use when fetching data."), }), execute: async (args) => { const result = await getTransaction(wagmiConfig, args); return { content: [ { type: "text", text: JSONStringify(result), }, ], }; }, }); };