CONNECT APP

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Get engaged in interactive conversations with LINE users.

Communication

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MCP

Give your agent LINE Messaging tools

Every LINE Messaging action is exposed as an MCP tool on Pipedream's remote server. Point a client at it with your end user's ID and Connect resolves that user's LINE Messaging account for each tool call — you store no tokens.

Pipedream Connect

// 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": "line_messaging_api",
      },
    },
  },
)

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

const { tools } = await mcp.listTools()

// e.g. run Send Broadcast Message:
const result = await mcp.callTool({
  name: "line_messaging_api-send-broadcast-message",
  arguments: {
    message: "Message Text",
    notificationDisabled: true,
  },
})

# access_token: mint a short-lived token with the Connect SDK — see the MCP guide
headers = {
    "Authorization": f"Bearer {access_token}",
    "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": "line_messaging_api",
}

async with streamablehttp_client("https://remote.mcp.pipedream.net/v3", headers=headers) as (read, write, _):
    async with ClientSession(read, write) as session:
        await session.initialize()
        tools = await session.list_tools()

        # e.g. run Send Broadcast Message:
        result = await session.call_tool("line_messaging_api-send-broadcast-message", {
            "message": "Message Text",
            "notificationDisabled": True,
        })

MCP guide →

API PROXY

Call the LINE Messaging API directly

For an endpoint with no pre-built tool, the Connect proxy forwards your request to the LINE Messaging API with the connected user's credentials attached. You store no tokens and write no refresh logic.

Pipedream Connect

const resp = await pd.proxy.get({
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  accountId: "apn_xxxxxxx",
  url: "https://api.line.me/v2/bot/info",
})

// Any allowed LINE Messaging endpoint works here. Pipedream attaches the
// connected account's credentials to the outgoing request.

# The path segment is the target URL, URL-safe base64 encoded:
# https://api.line.me/v2/bot/info

curl "https://api.pipedream.com/v1/connect/{project_id}/proxy/aHR0cHM6Ly9hcGkubGluZS5tZS92Mi9ib3QvaW5mbw?external_user_id={external_user_id}&account_id=apn_xxxxxxx" \
  -H "Authorization: Bearer {access_token}" \
  -H "x-pd-environment: production"

API proxy guide →

SDK

Run LINE Messaging actions from your backend

Connect a user's LINE Messaging account once, then run Send Broadcast Message on their behalf from your own code — TypeScript, Python, or plain HTTP.

Pipedream Connect

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: "line_messaging_api-send-broadcast-message",
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  configuredProps: {
    line_messaging_api: { authProvisionId: "apn_xxxxxxx" },
    message: "Message Text",
    notificationDisabled: true,
  },
})

from pipedream import Pipedream

pd = Pipedream(
    client_id="{oauth_client_id}",
    client_secret="{oauth_client_secret}",
    project_id="{project_id}",
    project_environment="production",
)

result = pd.actions.run(
    id="line_messaging_api-send-broadcast-message",
    external_user_id="{external_user_id}",  # any stable ID for this user in your system
    configured_props={
        "line_messaging_api": {"authProvisionId": "apn_xxxxxxx"},
        "message": "Message Text",
        "notificationDisabled": True,
    },
)

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": "line_messaging_api-send-broadcast-message",
    "configured_props": {
      "line_messaging_api": { "authProvisionId": "apn_xxxxxxx" },
      "message": "Message Text",
      "notificationDisabled": true
    }
  }'