Instagram DM automation

Instagram DM automation that turns comments into conversations

When someone comments your keyword on a post or Reel, CommentKeyword replies publicly and sends them a DM with your link, guide, or offer within seconds. If they reply, an optional AI agent keeps the conversation going.

  • 300 free DMs every month
  • No credit card
  • Official Instagram API

What is Instagram DM automation?

Instagram DM automation sends direct messages for you when someone takes an action you define. The most common trigger, and the one CommentKeyword is built around, is a comment: you post “Comment GUIDE and I’ll send it to you,” and everyone who comments GUIDE gets it in their DMs automatically, whether 10 people comment or 10,000.

It runs through Instagram’s official messaging API, so the person always acts first. That is also why it works: every DM goes to someone who just asked for it.

How it works

  1. 1

    They comment your keyword

    Someone comments PLAN on your Reel. Match the exact word or any comment containing it, on all posts, selected posts, or your next post.

  2. 2

    They get a public reply and a DM

    A short public reply confirms it, and the DM lands with your link. Rotate up to 10 variations of each and personalize them with the person’s name.

  3. 3

    The conversation keeps going

    If they reply, an optional AI agent answers, qualifies, and collects details, or you take over from the shared inbox.

Why Instagram DM automation matters

50 followers

You can reply manually

5,000 followers

Replying is eating hours

50,000 followers

Warm leads you never got back to

DM automation is the difference between a comment strategy that scales and one that becomes a bottleneck every time a post performs.

Respond while intent is hot

The best time to message someone is right after they engage. DM automation lets you reply instantly instead of hours later.

Deliver the next step directly

Instead of hoping people click your bio later, you can send the link, guide, offer, or next message directly in DMs.

Scale without inbox overload

Manual DMs work at small scale. Automation is what keeps the follow-up consistent when a post starts performing.

Instagram DM automation examples

Most DM funnels follow the same shape: give something useful for free, learn who the person is, then send them to the next step that fits: a call, a sales page, a community, or straight to checkout.

Coach

Comment READY
  1. 1

    Free value in the DM

    Here’s your free 5-day training: example.com/training

  2. 2

    AI agent qualifies

    What’s your main goal for the next 90 days?

  3. 3

    Next step

    Qualified leads get the link to book a strategy call

Course creator

Comment GUIDE
  1. 1

    Free value in the DM

    Your photo-editing starter guide: example.com/guide

  2. 2

    AI agent qualifies

    Are you editing for fun or for paying clients?

  3. 3

    Next step

    The course page that matches their level

Community

Comment WORKSHOP
  1. 1

    Free value in the DM

    Here’s the free workshop replay: example.com/replay

  2. 2

    AI agent qualifies

    What are you building right now?

  3. 3

    Next step

    An invitation to the paid membership

Online shop

Comment FIT
  1. 1

    Free value in the DM

    Here’s the size and fit guide for the linen set

  2. 2

    AI agent qualifies

    Which size do you usually wear?

  3. 3

    Next step

    A direct checkout link for the right size

The AI step is optional and available on paid plans. Without it, the first DM can include your offer link directly.

Browse comment-to-DM templates by industry
DM automation + AI agents · paid plans

When instant delivery is not enough, an AI agent can take the conversation further

The initial DM is automatic. If you want the conversation to go deeper, attach an AI agent to the keyword. It appends a short hook question to the first DM, and only activates once the user replies.

You configure the agent with an objective, instructions for tone and pacing, the fields it should collect, and rules for when to hand off to a human. The Setup Assistant drafts all of that from a plain-language description, so you can test before going live.

See how AI agents work

What an AI agent can do in DMs

Build rapport and guide the conversation

One question at a time, at a natural pace, keeping the tone you define until the objective is reached.

Qualify, route, and collect structured data

Define the required fields, such as budget, timeline, email, or interest, and the agent works to capture them. Route different people to different offers depending on their answers.

Hand off and export when the job is done

When the objective completes or your team needs to step in, the thread moves to manual. Export results via CSV or fire a webhook to your CRM in real time.

What CommentKeyword automates, and what it doesn’t

Instagram DM automation tools cover different triggers. Here is exactly where we fit, so you can decide before you sign up.

Automated with CommentKeyword

  • Keyword comments on posts and Reels
  • All posts, selected posts, or your next post
  • A public comment reply and a private DM from one keyword
  • Up to 10 variations per reply and DM, personalized with the person’s name
  • A catch-all DM for comments that match no keyword (paid plans)
  • An AI agent that continues the DM when people reply (paid plans)
  • A shared inbox to read and take over conversations
  • Tracked links to see how many people clicked

Not supported today

  • DMs triggered by story replies or story mentions
  • DMs triggered when someone messages you a keyword
  • Welcome messages and conversation starters
  • Buttons, images, or carousels inside DMs
  • “Follow to unlock” gating
  • Multi-step drip sequences
  • Facebook Messenger or WhatsApp

CommentKeyword is built for one job: turning comments into DM conversations. If that is your main flow, you get a simpler setup and a lower price than general-purpose chatbot builders.

Compare Instagram comment-to-DM tools

How to set up Instagram DM automation

Most people are live in about five minutes. There is no flow builder: one keyword, one form.

  1. 1

    Connect your Instagram professional account

    A Business or Creator account, connected through Meta’s official flow. Personal accounts can’t use messaging automation; switching is free in Instagram’s settings.

  2. 2

    Create a keyword

    Pick the word, such as PLAN, choose exact or contains matching, and decide which posts it watches.

  3. 3

    Write the public reply and the DM

    Add variations if you like, turn on link tracking for URLs, and optionally attach an AI agent.

  4. 4

    Post with a clear call to action

    “Comment PLAN and I’ll DM you the plan.” From then on, every matching comment is answered automatically.

Create New Keyword

Keyword *

PLAN

Scope *

All posts
Selected posts

Comment Reply Variants (Optional)

Add Variant
Sent! Check your DMs

DM Message Variants *

Add Variant
Hi {{name}}! Here’s your 7-day meal plan: example.com/meal-plan
Track link clicks

AI Agent (Optional)

Meal plan coach
Create Keyword

The Instagram rules every DM automation follows

Every legitimate tool works within the same Meta limits. Knowing them tells you what to expect, and which promises to be suspicious of.

Comments + incoming DMs
Public replies + DMsAutomated DMs · AI replies
Instagram
Meta API
CommentKeyword
Automatic rate limitingQueue and retries

The person acts first

Automated DMs only go to people who commented on your content or messaged you. Tools that promise cold DMs to lists of accounts work outside the official API.

One private reply per comment, within 7 days

A comment unlocks a single private reply, and it must be sent within 7 days. CommentKeyword sends it within seconds.

24 hours to keep talking

Once the person replies, you can keep messaging them for 24 hours after their latest message. The AI agent and your inbox work inside that window.

Hourly sending limits

Meta allows 750 private replies per hour per account. When a post takes off, CommentKeyword queues the extra DMs and sends them as capacity frees up, instead of failing.

Instagram DM automation pricing

Start free. Paid plans add more DMs, more keywords, and AI follow-up.

PlanPriceDMs / monthActive keywordsAI agents
Free$0/mo3003—
Starter$12/mo3,00015Included model
Pro$29/mo10,00050Included + premium models
Growth$59/mo25,000100Included + premium models
Scale$99/mo50,000500Included + premium models

The free plan includes 300 public replies alongside its 300 DMs every month. No credit card required.

See full pricing

Instagram DM automation FAQ

What is Instagram DM automation?

It is software that sends Instagram direct messages for you when someone performs a trigger action, most often commenting a keyword on a post or Reel. The person gets the link, guide, or answer instantly instead of waiting for you to reply manually.

Is Instagram DM automation allowed?

Yes, when it uses Meta’s official Instagram messaging API and only messages people who interacted with you first. What gets accounts in trouble is unofficial automation: browser bots, password-based tools, and cold DMs. CommentKeyword uses the official API and respects Meta’s rate limits.

Is there a free Instagram DM automation tool?

CommentKeyword’s free plan includes 300 DMs and 300 public replies every month with 3 active keywords, and no credit card is required. It is a permanent plan, not a trial.

Do I need a business account to automate Instagram DMs?

You need an Instagram professional account, either Business or Creator. Personal accounts cannot use Instagram’s messaging API. Switching is free and takes about a minute in Instagram’s settings.

Can I automatically DM everyone who comments on my post?

Yes. Set a keyword on the post and everyone whose comment matches receives the DM. On paid plans, an “Other comments” catch-all can also DM people whose comment matches no keyword, at most once per person every 24 hours.

Can automated Instagram DMs include links?

Yes. Links in the DM are clickable, and you can turn on link tracking to see how many people clicked from each keyword.

Can it reply to story replies or DMs automatically?

Not as triggers: CommentKeyword starts automations from comments only. Messages people send you appear in the CommentKeyword inbox, and if they are replying to a conversation an AI agent is handling, the agent answers them.

How fast are the DMs sent?

Usually within seconds of the comment. If a post receives more comments than Meta’s hourly limit allows, the extra DMs are queued and sent as soon as capacity is available.

How is this different from Manychat?

Manychat is built around visual flow builders. CommentKeyword sets up a comment-to-DM campaign in a single form, adds optional AI follow-up, and costs less for this use case.

See the full Manychat comparison

Guides for Instagram DM automation

Go deeper on comment triggers, Instagram’s messaging windows, and running DM campaigns safely.

DM Instagram Commenters

Automatically DM Instagram commenters using keyword triggers or a private DM for every other comment. Set up post scope, tracked links, and optional AI follow-up.

Read the guide ->

Messaging Window

Learn how the Instagram 24-hour messaging window affects DM automation, AI follow-up, team replies, and compliant comment-to-DM campaigns.

Read the guide ->

Private Replies

Understand Instagram private replies, how they fit into comment-to-DM automation, and why public replies plus private DMs are useful for lead capture.

Read the guide ->

Start automating your Instagram DMs today

Set up your first keyword in about five minutes and let every interested commenter get your DM while they’re still paying attention.