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Summary
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.
Try asking
Example prompts for LINE Messaging API
Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.
Claude is AI and can make mistakes. Please double-check responses.
💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → LINE Messaging API, paste your credentials, mint an MCP API key — done. No Docker, no
git clone, no local server.
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.
Prerequisites
See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:
LINE_CHANNEL_ACCESS_TOKEN
Step 1 — Get credentials
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)
Step 2 — Install the adapter
curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d
Step 3 — Add the connector in ChatGPT
Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (
https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide showsYOUR_SERVER_ID.
ChatGPT connects to MCP servers as custom apps in developer mode, available on paid plans (not on Free). On Business and Enterprise workspaces an admin may have to allow it first.
- In ChatGPT, open Settings → Security and login and turn on Developer mode.
- Go to chatgpt.com/plugins and click +.
- Enter a name and a short description, e.g. Name:
LINE Messaging API. - Under Connection, enter the MCP server URL
https://cloud.anythingmcp.com/mcp/YOUR_SERVER_IDand create the connection. - When ChatGPT asks, sign in to AnythingMCP (OAuth) and allow access.
Available tools
| Tool | What it does |
|---|---|
line_push_message | Send a push message to a specific userId, groupId, or roomId |
line_reply_message | Reply to a webhook-received message using its replyToken |
line_get_profile | Get a user's display name, profile picture URL, status message and BCP-47 language tag |
line_broadcast_message | Broadcast a message to ALL friends of the Official Account |
FAQ
Does the free ChatGPT plan work with custom MCP connectors? No. Custom MCP connections need developer mode, which is only on paid plans.
Next steps
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