AI agents for LINE Official Account
A Monmo agent runs the day-to-day of a LINE Official Account the way a customer communications assistant would. It drafts replies to one-to-one chats in Japanese or English, prepares the monthly broadcast and the rich menu for a campaign, records inquiries in kintone or HubSpot and reports on friends and blocks. Every message, broadcast and menu change waits for your approval.
Updated 2026-11-13 · Free to start. Paid plans from $15 a month.
What agents do in LINE
Reply to one-to-one chats
When a friend of your account writes with a question about opening hours, an order or a booking, it checks your FAQ and records and drafts a polite reply in Japanese. You approve the replies in one batch.
AskDraft replies to today's LINE chats from our FAQ and the order list. Keep them short and polite, and send me anything about refunds.
Prepare the monthly broadcast
It drafts the month's broadcast with a headline, an image made in Canva and a coupon or link, and tells you roughly how many friends it will reach. The broadcast is sent only when you approve it.
AskPrepare the December broadcast for our LINE account: the year-end sale, a Canva image and the coupon link.
Refresh the rich menu for a campaign
For a campaign it designs a new rich menu image, maps each area to the right link or action and writes the switch-back date. The menu changes on the day you approve.
AskMake a rich menu for the spring campaign with four areas: sale, new items, store finder and contact. Switch back on April 30.
Log inquiries in kintone or HubSpot
At the end of each day it records the day's inquiries in your kintone app or in HubSpot with the topic, the answer given and whether a follow-up is needed, after you approve the batch.
AskEach evening, add today's LINE inquiries to the kintone inquiry app with topic, answer and follow-up needed.
Report on friends and blocks
On the first of each month it reads the account's figures for friends added, blocks and message reach, compares them with the month before and links any rise in blocks to the broadcasts sent that week.
AskOn the 1st, report last month's LINE friends added, blocks and broadcast reach, and say which broadcasts caused blocks.
Keep auto-replies current
When opening hours, prices or a holiday closure change, it rewrites the matching auto-reply and greeting messages through the LINE connection, or in its own browser when the connection does not cover something, after your approval.
AskWe close December 29 to January 3. Update the greeting and the opening-hours auto-reply, and show me the wording first.
Answer customers who write in English
Visitors often write in English or Chinese. It drafts the reply in their language, shows a Japanese version beside it for you to check and keeps prices, dates and store names unchanged.
AskReply to LINE chats in the language the customer used, and show me a Japanese version of each reply.
How it connects
- 1You connect your own LINE Official Account once. The Messaging API has to be turned on for the account and a channel created in the LINE Developers Console, which someone with the admin role on the account can do.
- 2You choose which agents may use LINE. A customer support or social media agent fits; a research agent has no reason to read your customers' chats.
- 3Reading chats and account figures needs no approval. Every reply, broadcast, rich menu change and auto-reply edit asks first. Messages it sends count toward your LINE plan in the same way as messages you send yourself.
More in Chat and meetings
Other apps of this kind that agents work in, each with its own page.
Watch it work
A sample replay with example data, sped up. Pause it, scrub through it, or take the mouse yourself. This sample shows a similar job in other tools; LINE is not on screen.
On screen
Gmail
Shopify
Google Sheets
Pick a job. Watch it get done.
- Order status6
- Returns3
- How-to2
- Need you3
- Why
- They follow your saved policies: order status, returns inside 30 days, care instructions.
- Where
- support@fieldwork.example · 11 customers
- What to expect
- Sends the 11 drafts. The 3 that need you are not sent.
Your team. Connected to everything.
Support log+Sample replays with fictional data, sped up. Pause one, scrub through it, or take the mouse yourself.
Questions people ask
Can an AI agent reply to customers on our LINE Official Account?
Yes, after you approve the replies. A Monmo agent reads new one-to-one chats, checks your FAQ, orders or bookings and drafts a reply in the customer's language. You can approve the replies one by one or as a batch, and questions it should not answer, such as complaints, come to you.
Can an AI agent send LINE broadcasts?
It prepares them and you decide when they go. The agent drafts the message, makes the image and adds the link or coupon, then shows the broadcast on a card with the audience it is for. It is sent only when you allow it, and only to people who added your account as a friend.
Do messages sent by the agent use our monthly LINE message allowance?
Yes, in the same way as messages you send yourself. Broadcasts and other messages your account sends count toward your LINE Official Account plan as usual. The card for a broadcast shows roughly how many friends it will reach, so you can see the effect before you approve.
Can an AI agent handle LINE chats in Japanese?
Yes. You can brief the AI agent in Japanese or English and ask for replies in either. It writes polite Japanese suited to customer service, and for customers who write in another language it drafts the reply in their language with a Japanese version for you to check.