Four triggers
A keyword in a comment, any comment on chosen posts, a keyword in a DM, or a story mention. Pick one per rule.
Instagram AutoDM
Comment a word, get the link. Automatically.
Connect your Instagram professional account and let thx.so answer comments, DMs and story mentions with a public reply, a private DM carrying your link, or both.
Why it works
Instagram AutoDM
Reply and DM
A short public reply under the comment so others see it worked, and a private message with the link they asked for.
Fixed text or written by AI
Type a template with tokens like {name} and {link}, or give instructions and let the AI write each reply in your voice.
Cards and quick replies
Send a card with an image and up to three buttons, plus tappable quick replies, so the DM does more than paste a URL.
The flow
"Comment LINK and I'll send it."
The oldest trick on Instagram still works because it turns a passive viewer into a comment and a DM in one tap. thx.so watches your posts, matches the keyword, replies under the comment, and delivers the link privately. The comment boosts reach; the DM makes the sale.
- Keywords match case-insensitively, contains or exact
- Scope a rule to specific posts or run it on every post
- First matching rule wins, so rules stay predictable
- Ready-made "comment LINK" post and story images in the template library, pre-filled from your rule
The message
Every DM sends what you'd send by hand.
Fixed text is fine for a link drop. When the conversation needs a real answer, switch the rule to AI and it writes one reply from your instructions, your bio, and what the fan actually said. Preview any rule against a sample message before you save it.
- Tokens: {name}, {link}, {message}, {creator}
- AI replies read the fan's message and any attachment they sent
- Link card with image, title and up to three buttons
Control
See every reply. Change your mind any time.
Each incoming comment or DM is logged with what matched, what was sent, and why anything was skipped. Pause a rule with one switch. AI-written replies come with a monthly allowance you can watch in your dashboard.
- Activity log with sent replies and skip reasons
- AI-written replies included on every plan, more on Pro
- Rules are yours to edit, pause or delete
Side by side
AutoDM versus the usual tools.
| thx.so | ManyChat | Doing it by hand | |
|---|---|---|---|
| Comment keyword to DM | You, at 2am | ||
| Story mention trigger | — | ||
| AI-written replies | Included, 50 to 2,000 a month by plan | Paid add-on | — |
| Link card with buttons | — | ||
| Your link and shop in the same product | — | — | |
| Monthly price | Included on every plan | From about $15 | Your evenings |
Getting started
From connected to replying in five minutes.
01
Connect Instagram
Integrations, Connections, Instagram. You need a professional account, which is a free switch inside the Instagram app.
02
Write a rule
Pick a trigger, add your keywords, choose a reply and a DM. Fixed text or AI.
03
Preview it
Type a sample comment and see exactly what would be sent before anything goes live.
04
Post and watch the log
Tell your audience the keyword. Replies land within seconds and every one shows up in the activity log.
Why comment-to-DM works
Instagram rewards posts that get comments, and a comment is a much smaller ask than a click to a bio link. When the reward for commenting is a link delivered privately, people comment. The post travels further and the fan ends up exactly where you wanted them.
The DM also opens a conversation window. A fan who has messaged you once can be messaged again, which is worth more than any single click.
Fixed text or AI
For a link drop, fixed text wins: it's instant, predictable and free. Use tokens so it still reads like a person wrote it.
Use AI when comments carry real questions. Give it your tone and the facts that matter, and it answers each fan individually while still including your link. Every AI reply counts against a monthly allowance that grows with your plan, so a viral post can't surprise you.
What you need on the Instagram side
A professional account, Business or Creator, which is a free setting in the Instagram app. Personal accounts can't receive comment and message webhooks, so they can't be automated by any tool.
You connect once from the dashboard. thx.so only reads comments, mentions and messages sent to you, and only sends what your rules say.
FAQ
Questions people ask first.
Does this cost extra?
AutoDM is part of thx.so on every plan and fixed-text replies are unlimited. AI-written replies come with a monthly allowance: 50 on Free, 500 on Pro, 2,000 on Business.
Will Instagram penalise automated replies?
thx.so uses Meta's official messaging API, the same one large brands use. Replies go through approved channels with Meta's rate limits respected.
Can it reply to comments on old posts?
Yes. A rule either runs on every post or on the posts you list. Comments on any of them trigger it, no matter when the post went up.
What happens if two rules match?
The first enabled rule that matches wins and the rest are skipped for that message. Reorder rules to set priority.
Does it work for TikTok or other platforms?
Instagram today. The automation engine is built provider by provider, and more will follow as their messaging APIs allow it.