// src/index.ts
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { google } from "googleapis";
function buildServer() {
const server = new McpServer({
name: "google-calendar-mcp",
version: "1.0.3",
});
// ---- health.ping (semplice JSON Schema) ----
server.tool(
"health.ping",
{
description: "Return 'pong 🏓' if the server is alive.",
inputSchema: { type: "object", additionalProperties: false },
},
async () => ({ content: [{ type: "text", text: "pong 🏓" }] })
);
// ---- gcal.listEvents (Service Account) ----
server.tool(
"gcal.listEvents",
{
description:
"List events from Google Calendar (Service Account). Defaults: CALENDAR_ID, now → +30 days.",
inputSchema: {
type: "object",
additionalProperties: false,
properties: {
calendarId: {
type: "string",
description:
"Calendar ID/email. Defaults to env CALENDAR_ID (or 'primary').",
},
timeMin: {
type: "string",
description:
"ISO datetime (e.g., 2025-10-09T00:00:00+02:00). Default: now.",
},
timeMax: {
type: "string",
description:
"ISO datetime. Default: now + 30 days.",
},
q: {
type: "string",
description: "Free text search in events.",
},
maxResults: {
type: "number",
minimum: 1,
maximum: 2500,
description: "Default 50.",
},
},
},
},
async (args: any) => {
const clientEmail =
process.env.client_email || process.env.GOOGLE_CLIENT_EMAIL;
const privateKey = (process.env.GOOGLE_PRIVATE_KEY || "").replace(
/\\n/g,
"\n"
);
const scopes =
process.env.GOOGLE_SCOPES ||
"https://www.googleapis.com/auth/calendar.readonly";
const defaultCal =
args?.calendarId ||
process.env.CALENDAR_ID ||
process.env.GOOGLE_CALENDAR_ID ||
"primary";
if (!clientEmail || !privateKey) {
throw new Error(
"Missing service account env: client_email and/or GOOGLE_PRIVATE_KEY"
);
}
const auth = new google.auth.JWT({
email: clientEmail,
key: privateKey,
scopes,
});
const calendar = google.calendar({ version: "v3", auth });
const now = new Date();
const plus30 = new Date(now.getTime() + 30 * 24 * 60 * 60 * 1000);
const res = await calendar.events.list({
calendarId: defaultCal,
timeMin: args?.timeMin || now.toISOString(),
timeMax: args?.timeMax || plus30.toISOString(),
maxResults: args?.maxResults || 50,
q: args?.q,
singleEvents: true,
orderBy: "startTime",
});
const items = res.data.items || [];
if (items.length === 0) {
return {
content: [
{
type: "text",
text: "Nessun evento trovato nel periodo richiesto.",
},
],
};
}
const lines = items.map((ev) => {
const start = ev.start?.dateTime || ev.start?.date || "?";
const end = ev.end?.dateTime || ev.end?.date || "?";
return `• ${ev.summary || "(senza titolo)"} — ${start} → ${end}`;
});
return { content: [{ type: "text", text: lines.join("\n") }] };
}
);
return server;
}
// 👉 export richiesto da Smithery (@smithery/cli)
export default function ({ config }: { config?: unknown }) {
return buildServer();
}
