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MULTI-APP TOOLKIT

Build with Gmail + Google Vertex AI

Connect a user's Gmail and Google Vertex AI accounts and expose tools for both apps directly in your product or your agent.
  • Multi-app
  • One MCP session
  • 26 actions
  • 5 triggers
  • Managed auth

MCP

One MCP session, both toolsets

One session gives your product or agent every Gmail and Google Vertex AI tool at once — connect once, list tools, and call them like any single-app session.

// accessToken: mint a short-lived token with the Connect SDK — see the MCP guide
const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": "{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": "gmail,google_vertex_ai",
      },
    },
  },
)

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

const { tools } = await mcp.listTools()

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

// e.g. run Add Label to Email:
const result = await mcp.callTool({
  name: "gmail-add-label-to-email",
  arguments: {
    message: "Message",
    addLabelIds: ["Labels"],
  },
})

ARCHITECTURE

One user, two connected accounts

Your user connects each account once, under whatever ID they already have in your product. The two stay independent — either can be revoked on its own — and your code reaches both through that one user.

Your product

external_user_id

{external_user_id}

Pipedream Connect

Managed identity

Auth · tools · routing

Gmail

Connected account

Google Vertex AI

Connected account

TOOLS

Gmail tools

The Gmail tools this pairing puts in reach, each one running on your user's own connected account.

View all 26 Gmail tools →

Actions top 8 of 21

Triggers top 4 of 5

x-pd-app-slug
gmail,google_vertex_ai
Primary app
Gmail (gmail)
Second app
Google Vertex AI (google_vertex_ai)
Authentication
OAuth + OAuth
Available actions
26
Available triggers
5