Instagram Auto-DM
By Kushagra Kumar, founder of Shre. Updated 1 July 2026.
Instagram auto-DM automatically sends a direct message to anyone who comments a keyword on your post, Reel or story, or replies to your story. You set the keyword and message once, then Instagram's official Graph API delivers the DM within seconds, so every commenter gets your link without you typing a reply.
Auto-DM tools connect to your Instagram Business or Creator account through Meta's official Instagram Graph API, watch your posts for a trigger word, and reply on your behalf. When a Reel goes viral and hundreds comment the same word, you cannot DM each person by hand, so the automation does it for you around the clock. The API never asks for your password and never logs in as you, which keeps your account safe. Meta only allows messages within 24 hours of a person's comment or reply, so auto-DM answers real interactions rather than cold outreach. Shre is one such tool: pick a post, choose a keyword, write the DM with your link, and turn it on. It paces sending inside Instagram's limits, sends unlimited DMs on one flat price, and takes 0% commission on what you sell. It is free to start with a 7-day trial.
What is Instagram auto-DM?
Instagram auto-DM is automation that sends a direct message to anyone who comments a chosen keyword on your post, Reel or story. Instead of replying by hand, you set it up once and every commenter gets your link instantly.
Creators use it to hand out lead magnets, discount codes, booking links and course pages. The most common pattern is a Reel that says "comment GUIDE and I will send you the link", with the DM going out the moment someone comments.
How does Instagram auto-DM work?
Your auto-DM tool connects to Instagram through Meta's official Graph API, watches your chosen posts for the trigger word, and sends your pre-written message on your behalf. The whole loop takes a few seconds.
Common triggers are comments on a post or Reel, replies to a story, and keywords sent in your DMs. Meta requires messages to go out within 24 hours of the person's action, so auto-DM answers people who just interacted with you, not strangers. Auto-DM only works on Instagram Business or Creator accounts, because personal accounts have no API access.
Is Instagram auto-DM safe?
Yes, when it uses the official Instagram Graph API. Shre never asks for your password and never logs into or scrapes your account. It is not a bot that signs in as you.
Shre also paces sending inside Instagram's own rate limits and messaging windows, which keeps your account away from spam flags. Because it stays inside Meta's approved API, it works within Instagram's rules rather than around them.
How to set up Instagram auto-DM
- Switch your Instagram profile to a Business or Creator account if it is not already. Both are free.
- Connect the account to Shre. You approve access through Instagram, so no password is shared.
- Pick the post or Reel you want to automate.
- Choose a keyword such as "link", "guide" or "price".
- Write the DM you want to send, including your link.
- Turn the automation on. When someone comments the keyword, Shre sends the DM automatically through the Graph API.
What does Instagram auto-DM cost?
Shre is free to start with a 7-day trial and no card. After that it is one flat price with unlimited auto-DMs: Rs 99 a month in India or $19 a month internationally. There is no per-contact billing and 0% commission, so going viral never raises your bill.
Frequently asked questions
What is Instagram auto-DM?
Instagram auto-DM automatically sends a direct message to anyone who comments a chosen keyword on your post, Reel or story, so you do not have to reply by hand.
Is Instagram auto-DM safe and allowed?
Yes, when it uses the official Instagram Graph API and paces sending within Instagram's rules, like Shre does. Shre never asks for your password and never logs into or scrapes your account.
Do I need a Business account for Instagram auto-DM?
Yes. Meta only opens the messaging API to Instagram Business or Creator accounts, so you switch to one of those (both are free) before connecting Shre.
Is there a free Instagram auto-DM?
Shre is free to start with a 7-day trial and no card. After that it is one flat price with unlimited DMs and 0% commission on what you sell.
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Source and reference: Instagram Platform, Meta for Developers. Shre sends messages through the official Instagram Graph API within Instagram's rules.