# Get Thread — Gmail

> Fetch an entire Gmail thread (conversation) by thread ID — returns every message in order with headers, decoded body text, and attachment metadata. Use this after Find Emails when the user wants the full conversation rather than a single…

- Key: `gmail-list-thread-messages`
- Type: Action (Read-only)
- Version: 0.2.1
- App: Gmail (`gmail`) — https://pipedream.com/apps/gmail.md
- This page (HTML): https://pipedream.com/apps/gmail/actions/list-thread-messages
- Hints: read-only · open-world
- Source: https://github.com/PipedreamHQ/pipedream/blob/master/components/gmail/actions/list-thread-messages/list-thread-messages.mjs

## Description

Fetch an entire Gmail thread (conversation) by thread ID — returns every message in order with headers, decoded body text, and attachment metadata. Use this after **Find Emails** when the user wants the full conversation rather than a single message. Each result from **Find Emails** includes a `threadId` you can pass here. With `format: full` (default) each message includes decoded `text`/`html` bodies and attachment metadata. Use `format: metadata` to skip bodies and get only headers + labelIds — useful for large threads. Responses are capped — oversized threads fall back to `metadata`-level detail (or are further truncated from the tail) with a `[truncated]` marker so the caller knows to narrow the request. [See the documentation](https://developers.google.com/gmail/api/reference/rest/v1/users.threads/get).

## Props

| Prop | Type | Required | Description |
|---|---|---|---|
| `threadId` | `string` | Yes | The thread identifier. Obtain this from the threadId field on a message returned by Find Emails. |
| `format` | `string` | No | full (default) returns each message with headers and decoded bodies. metadata returns only headers + labelIds (no body, no attachments) — use when the thread is long and you only need to enumerate its messages. |

## Run it

**MCP**

```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": "gmail",
      },
    },
  },
)

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

const { tools } = await mcp.listTools()

// listTools() hands your model this tool's input schema, so it can
// fill the arguments itself:
const result = await mcp.callTool({
  name: "gmail-list-thread-messages",
  arguments: {
    threadId: "Thread ID",
    format: "Format",
  },
})
```

**TypeScript**

```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 result = await pd.actions.run({
  id: "gmail-list-thread-messages",
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  configuredProps: {
    gmail: { authProvisionId: "apn_xxxxxxx" },
    threadId: "Thread ID",
    format: "Format",
  },
})

console.log(result)
```

**cURL**

```bash
curl -X POST https://api.pipedream.com/v1/connect/{project_id}/actions/run \
  -H "Content-Type: application/json" \
  -H "X-PD-Environment: production" \
  -H "Authorization: Bearer {access_token}" \
  -d '{
    "external_user_id": "{external_user_id}",
    "id": "gmail-list-thread-messages",
    "configured_props": {
      "gmail": { "authProvisionId": "apn_xxxxxxx" },
      "threadId": "Thread ID",
      "format": "Format"
    }
  }'
```

---

- App: https://pipedream.com/apps/gmail.md · All apps: https://pipedream.com/apps