blah-mcp

import { McpAgent } from "agents/mcp"; import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; import { z } from "zod"; import { Hono } from "hono"; import { layout, homeContent, } from "./utils"; export type Bindings = Env const app = new Hono<{ Bindings: Bindings; }>(); export type Props = { bearerToken: string } export class MyMCP extends McpAgent<Bindings, {}, Props> { server = new McpServer({ name: "Demo", version: "1.0.0", }); async init() { this.server.tool("add", { a: z.number(), b: z.number() }, async ({ a, b }) => ({ content: [{ type: "text", text: String(a + b) }], })); this.server.tool("getToken", { }, async ({}) => ({ content: [{ type: "text", text: String(`User's token: ${this.props.bearerToken}`) }], })); } } // Render a basic homepage placeholder to make sure the app is up app.get("/", async (c) => { const content = await homeContent(c.req.raw); return c.html(layout(content, "MCP Remote Auth Demo - Home")); }); app.mount("/", (req, env, ctx) => { const authHeader = req.headers.get("authorization") if (!authHeader) { return new Response("Unauthorized", { status: 401 }) } ctx.props = { bearerToken: authHeader // could also add arbitrary headers here } return MyMCP.mount("/sse").fetch(req, env, ctx) }) export default app