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LINE Messaging API を ChatGPT に接続する方法 — MCP 経由

Send push, reply and broadcast messages from a LINE Official Account — LINE is the dominant chat platform in Japan, Taiwan and Thailand. Free tier of 500 push messages per month, unlimited reply messages, channel access tokens require no KYC.

HCBy HelpCode teamUpdated 2 min read Open source on GitHub

No credit card · 7-day trial · Self-host alternative available

MCP connector

LINE Messaging API

Send push, reply and broadcast messages from a LINE Official Account — LINE is the dominant chat platform in Japan, Taiwan and Thailand. Free tier of 500 push messages per month, unlimited reply messages, channel access tokens require no KYC.

Tools

4

Region

JP

Category

Messaging

Authentication

Required env vars

LINE_CHANNEL_ACCESS_TOKEN
Install in one click on Cloud

7-day free trial · No credit card

  • 7-day free trial
    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Source-available BSL-1.1
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

No install? Use cloud.anythingmcp.com directly.

Sign in, install the LINE Messaging API in one click, paste the credentials, mint an MCP API key — done. No Docker, no git clone, no local server to run.

Open Cloud

💡 インストール不要? cloud.anythingmcp.com を直接利用してください。 サインインし、Connectors → LINE Messaging API をクリック、認証情報を貼り付け、MCP API キーを発行 — 完了です。Docker も git clone もローカルサーバーも不要。

LINE Messaging API + ChatGPT

Send push, reply and broadcast messages from a LINE Official Account — LINE is the dominant chat platform in Japan, Taiwan and Thailand. Free tier of 500 push messages per month, unlimited reply messages, channel access tokens require no KYC.

前提条件

完全なセットアップ手順はコネクタ自体に組み込まれています (ストアでコネクタを選択すると表示)。必要な環境変数:

LINE_CHANNEL_ACCESS_TOKEN

ステップ 1 — 認証情報を取得

Creating a channel: log in to https://developers.line.biz/console → create a Provider → 'Create a new channel' → 'Messaging API'. Set up the LINE Official Account (auto-created with the channel), then under the channel's 'Messaging API' tab, scroll to 'Channel access token' → 'Issue' a long-lived token. Paste it as LINE_CHANNEL_ACCESS_TOKEN.

Authentication: Bearer Token (the channel access token). Note: this token belongs to the channel, not to a user — anyone with the token can post as that Official Account, so keep it secret.

…(continued in the in-app connector instructions)

ステップ 2 — アダプターをインストール

git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d

ステップ 3 — ChatGPT にコネクタを追加

ChatGPT は Connectors 機能 (Plus / Pro / Team / Enterprise プラン) で MCP サーバーをサポートします。無料プランはカスタムコネクタをサポートしません。

  1. ChatGPT → Settings → Connectors を開きます (またはコンポーザーの 🔧 アイコン → Manage connectors をクリック)。
  2. "Add custom connector" をクリック。
  3. 入力:
    • Name: LINE Messaging API
    • MCP server URL: https://cloud.anythingmcp.com/mcp
    • Authentication: Bearer token → MCP API キーを貼り付け
  4. Connect をクリック。

利用可能なツール

ToolWhat it does
line_push_messageSend a push message to a specific userId, groupId, or roomId
line_reply_messageReply to a webhook-received message using its replyToken
line_get_profileGet a user's display name, profile picture URL, status message and BCP-47 language tag
line_broadcast_messageBroadcast a message to ALL friends of the Official Account

FAQ

ChatGPT 無料プランはカスタム MCP Connectors で動作しますか? いいえ — Plus、Pro、Team、Enterprise が必要です。

次のステップ

Ready to ship

Your LINE agent is one click away.

Install the connector, paste the key, prompt ChatGPT. Free for 7 days, no credit card.