# Google Calendar + Square — Pipedream Connect

> Connect a user's Google Calendar and Square accounts and expose tools for both apps directly in your product or your agent.

- Apps: Google Calendar (`google_calendar`) + Square (`square`)
- This page (HTML): https://pipedream.com/apps/google-calendar/integrations/square
- One `external_user_id` owns both connected accounts, and each account stays independently revocable.

## One session, both toolsets (recommended)

- Endpoint: `https://remote.mcp.pipedream.net/v3`
- Headers: `Authorization: Bearer <token>` · `x-pd-project-id` · `x-pd-environment` · `x-pd-external-user-id` · `x-pd-app-slug: google_calendar,square`
- `x-pd-app-slug` takes a comma-separated list, so `google_calendar,square` is one session on one transport. Both toolsets arrive from a single `listTools()`, and a tool is called exactly as it would be in a single-app session.

```ts
import { Client } from "@modelcontextprotocol/sdk/client/index.js"
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const accessToken = await pd.rawAccessToken

const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": process.env.PIPEDREAM_PROJECT_ID!,
        "x-pd-environment": "production",
        "x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
        "x-pd-app-slug": "google_calendar,square",
      },
    },
  },
)

const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)

const { tools } = await mcp.listTools()

// One list, both toolsets: Google Calendar and Square tools arrive
// together, each keyed by its own app's slug.

// e.g. run Add Attendees To Event:
const result = await mcp.callTool({
  name: "google_calendar-add-attendees-to-event",
  arguments: {
    calendarId: "Calendar",
    eventId: "Event",
  },
})
```

Docs: [MCP guide](https://pipedream.com/docs/connect/mcp/developers.md)

## Both apps from your backend

```ts
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const externalUserId = "{external_user_id}" // any stable ID for this user in your system

const [googleCalendarTools, squareTools] =
  await Promise.all([
    pd.components.list({ app: "google_calendar" }),
    pd.components.list({ app: "square" }),
  ])

// One external user owns both connected accounts, so either app's tools
// run on their behalf with the same externalUserId.
```

Docs: [Managed auth guide](https://pipedream.com/docs/connect/managed-auth/quickstart.md) · [Tools guide](https://pipedream.com/docs/connect/components.md)

## Google Calendar

- API slug: `google_calendar` (use in MCP headers and tool keys)
- Auth: OAuth (Pipedream-managed)
- Categories: Productivity
- Website: https://calendar.google.com
- Managed OAuth scopes: `https://www.googleapis.com/auth/calendar.events` · `https://www.googleapis.com/auth/calendar.readonly` · `https://www.googleapis.com/auth/calendar.settings.readonly`
- App page (HTML): https://pipedream.com/apps/google-calendar
- Tools: 17 actions · 6 triggers

Full tool list, API proxy, and SDK quickstart: https://pipedream.com/apps/google-calendar.md

### Actions (top 8 of 17)

- [Add Attendees To Event](https://pipedream.com/apps/google-calendar/actions/add-attendees-to-event.md) — `google_calendar-add-attendees-to-event`
- [Add Quick Event](https://pipedream.com/apps/google-calendar/actions/quick-add-event.md) — `google_calendar-quick-add-event`
- [Create Event](https://pipedream.com/apps/google-calendar/actions/create-event.md) — `google_calendar-create-event`
- [Delete an Event](https://pipedream.com/apps/google-calendar/actions/delete-event.md) — `google_calendar-delete-event`
- [Get Current User](https://pipedream.com/apps/google-calendar/actions/get-current-user.md) — `google_calendar-get-current-user`
- [Get Date Time](https://pipedream.com/apps/google-calendar/actions/get-date-time.md) — `google_calendar-get-date-time`
- [List Calendars](https://pipedream.com/apps/google-calendar/actions/list-calendars.md) — `google_calendar-list-calendars`
- [List Color ID Options](https://pipedream.com/apps/google-calendar/actions/list-color-id-options.md) — `google_calendar-list-color-id-options`

### Triggers (top 4 of 6)

- [New Created or Updated Event (Instant)](https://pipedream.com/apps/google-calendar/triggers/new-or-updated-event-instant.md) — `google_calendar-new-or-updated-event-instant`
- [New Calendar Created](https://pipedream.com/apps/google-calendar/triggers/new-calendar.md) — `google_calendar-new-calendar`
- [New Event Matching a Search](https://pipedream.com/apps/google-calendar/triggers/new-event-search.md) — `google_calendar-new-event-search`
- [New Cancelled Event](https://pipedream.com/apps/google-calendar/triggers/event-cancelled.md) — `google_calendar-event-cancelled`

## Square

- API slug: `square` (use in MCP headers and tool keys)
- Auth: OAuth (Pipedream-managed)
- Categories: Commerce
- Website: https://squareup.com
- Managed OAuth scopes: `CUSTOMERS_READ` · `CUSTOMERS_WRITE` · `PAYMENTS_READ` · `PAYMENTS_WRITE` · `ORDERS_READ` · `ORDERS_WRITE` · `SUBSCRIPTIONS_READ` · `SUBSCRIPTIONS_WRITE` · `ITEMS_READ` · `ITEMS_WRITE` · `INVOICES_READ` · `INVOICES_WRITE` · `LOYALTY_READ` · `LOYALTY_WRITE` · `EMPLOYEES_READ` · `EMPLOYEES_WRITE` · `MERCHANT_PROFILE_READ` · `BANK_ACCOUNTS_READ` · `SETTLEMENTS_READ` · `DEVELOPER_APPLICATION_WEBHOOKS_WRITE` · `APPOINTMENTS_ALL_READ` · `APPOINTMENTS_READ`
- App page (HTML): https://pipedream.com/apps/square
- Tools: 6 actions · 5 triggers

Full tool list, API proxy, and SDK quickstart: https://pipedream.com/apps/square.md

### Actions (6)

- [Create Customer](https://pipedream.com/apps/square/actions/create-customer.md) — `square-create-customer`
- [Create Invoice](https://pipedream.com/apps/square/actions/create-invoice.md) — `square-create-invoice`
- [Create Order](https://pipedream.com/apps/square/actions/create-order.md) — `square-create-order`
- [List Location Options](https://pipedream.com/apps/square/actions/list-location-options.md) — `square-list-location-options`
- [List Webhook Event Types Options](https://pipedream.com/apps/square/actions/list-event-types-options.md) — `square-list-event-types-options`
- [Send Invoice](https://pipedream.com/apps/square/actions/send-invoice.md) — `square-send-invoice`

### Triggers (top 4 of 5)

- [Catalog Item Updated](https://pipedream.com/apps/square/triggers/catalog-item-updated.md) — `square-catalog-item-updated`
- [New Booking Created](https://pipedream.com/apps/square/triggers/new-booking-created.md) — `square-new-booking-created`
- [New Customer Created](https://pipedream.com/apps/square/triggers/new-customer-created.md) — `square-new-customer-created`
- [New Invoice Created](https://pipedream.com/apps/square/triggers/new-invoice-created.md) — `square-new-invoice-created`

---

- Google Calendar: https://pipedream.com/apps/google-calendar.md · Square: https://pipedream.com/apps/square.md
- All apps: https://pipedream.com/apps — index: https://pipedream.com/llms.txt
- Pipedream docs for agents: https://pipedream.com/docs/llms.txt