Comment-to-DM automation for Instagram

Turn every Instagram comment into a DM that sells, on autopilot

Comment-to-DM automation sends a private Instagram message to anyone who comments your keyword. With FavStash you pick a post, choose the keyword and write the DM, preview each step and go live in a few minutes. After that, every comment gets an answer with your link, guide or offer, even at 3 a.m.

Works on any post or Reel on your account, even ones you didn't publish with FavStash.

  • Official Instagram API
  • No password shared
  • One DM per person
  • Reply STOP to opt out
  • Queues DMs when a post goes viral
A Reel on Instagram: Claude can run your Instagram
The problem

Your best post is the one you can't keep up with

Comments pile up"Link in bio" leaks buyersLeads go cold overnight
A Reel takes off and hundreds of people ask for the same thing. You answer the first twenty by hand and the rest wait.Every extra tap (profile, bio, link page, find the right link) is a chance to drop off. The comment is where they're interested.Someone asks at midnight and you reply at 9 a.m. By then they've scrolled on, and the Reel's momentum has passed.
The AI workflow

One prompt. Your whole social workflow

One prompt in the agent you already use. FavStash searches your stash, publishes across your accounts, and brings the results back.

Before / after

Stop replying. Start sending.

Without automationWith FavStash
Copy-pasting the same link into DMs, one by oneEvery keyword comment gets the DM within moments, automatically
"Link in bio πŸ‘†", and most never get thereThe link lands in their DMs, one tap away
Comments left unanswered when a post blows upEvery comment answered publicly, and DMs queued so none are lost
No idea which post actually sent people to your offerEach automation shows what it sent and how many tapped through
Another tool, another login, another billIt sits next to your saves, calendar and analytics
How it works

Set it up in five steps. Go live in minutes.

1 Β· Pick the post2 Β· Choose the keyword3 Β· Reply publicly4 Β· Write the DM5 Β· Send the link
Search your captions or paste a post link. Any post or Reel on your account works, wherever you published it.Add up to 10 keywords. Pick Contains ("can I get the guide pls") or Is exactly ("guide"). Case, accents and emoji are ignored. Suggestions: guide, link, free, pdf, info, price.Turn on a public reply like "Sent you a DM πŸ“©", so the post shows activity and others know to comment.Write the message (up to 590 characters) and a button label like "Send me the link".When they tap, they get your follow-up message and the link. Press Go live.

No flow builder, no templates to untangle, no test account. If you can write a caption, you can set this up.

Set up my first automation β†’

Preview

See exactly what your commenters will get before you go live

A phone preview sits next to the builder and updates as you type. Flip between three views:

  • Post: confirm you picked the right Reel.
  • Comments: see your public reply under real-looking comments.
  • DM: read the message, the button and the link step the way a follower will.

No commenting on your own post to test it. What you see is what they get.

A Reel on Instagram: Claude can run your Instagram
Control

Change anything, test everything

TileCopy
A/B versions (double-width)Test which reply and DM works best. Add as many variations of your public reply and versions of your DM as you like; FavStash rotates them across commenters. Keep the winner, drop the rest. A viral post also stops sending thousands of identical messages.
Edit any timeChange it while it's live. Swap the keyword, rewrite the DM or update the link without rebuilding. Pause and resume with one click.
Smart matchingCatch every way people ask. "Guide", "GUIDE πŸ™" and "guΓ­de" all match, and "Contains" catches it mid-sentence.
One DM per personNo double sends. Someone who comments five times gets one DM.
Button-gated linksLinks that follow Instagram's rules. The link arrives after they tap, which is how Instagram lets a business send one.
Every accountRun several Instagram accounts from one place. Switch accounts in the builder, or see all of them together on the map.
Map + Insights

See every automation on one map, and what each one earns

Switch from List to Map and your whole setup appears as one picture. Each Instagram account is a hub, each keyword branches off it, and keywords you use on more than one account (GUIDE, PLAN, PDF) link the accounts together. Open Insights for the numbers behind any of them.

Spot what's workingFind anything fastTrack the numbers
Hover a keyword to see the Reels it runs on. Filter to one account or view all of them.Search any keyword, drag nodes to rearrange, pin the ones you care about, and zoom in or out.Insights shows comments matched, DMs sent and button taps per automation and per version, plus your monthly DM count.

The same app holds each Reel's views, likes and comments, so you can see whether your comment-to-DM posts beat the rest.

Viral-proof

Built for the post that blows up

When a Reel takes off, comments can arrive faster than Instagram allows DMs to go out. Many tools stop or drop messages at that point. FavStash keeps going:

Overflow queueDMs beyond the sending limit wait in a queue and go out as soon as there's room. Nobody who commented is skipped.
Rotating versionsVaried replies and DMs, not thousands of identical ones.
Opt-out built in"Automated reply Β· Reply STOP to opt out" is on by default, and STOP works even if you turn it off.
Permission checkIf Instagram's "Allow access to messages" is off, FavStash flags it and shows the fix before anything fails silently.

Microcopy: Runs on Instagram's official messaging API with browser sign-in. No password, no bot, no browser extension.

Set up with AI

Or just ask Claude or ChatGPT to set it up

FavStash plugs into Claude, ChatGPT and any MCP agent. Your AI can create, change and check automations for you in plain English.

  1. 01"Put a GUIDE keyword on my latest Reel and DM people the checklist link." β†’ chip: Automation live Β· @yourhandle Β· keyword GUIDE
  2. 02"Add a second DM version that's shorter, and rotate them." β†’ chip: 2 versions rotating
  3. 03"How many people got the guide this week?" β†’ chip: DMs sent Β· button taps Β· by post

"Things you can ask"

  • "Which of my posts should get a comment-to-DM, based on comments?"
  • "Write three public replies in my tone and add them as variations."
  • "Pause the automation on Tuesday's Reel."
  • "Change the link on every automation to my new landing page."
  • "Which keyword drove the most taps this month?"

Microcopy: Your AI asks before it turns anything on. Connect once at Claude or ChatGPT.

Set up my first automation β†’

Use cases

What creators and businesses send with it

Lead magnetProduct linkAffiliate code
πŸ’¬ "guide pls" β†’ πŸ“© "Here's the free checklist πŸ‘‡" + Notion/PDF linkπŸ’¬ "LINK" β†’ πŸ“© "Here's the one from the video" + shop linkπŸ’¬ "code" β†’ πŸ“© "20% off with LEO20" + affiliate link
Pricing and bookingWaitlist or launchFree resource
πŸ’¬ "price?" β†’ πŸ“© "Rates and open slots are here" + booking pageπŸ’¬ "WAITLIST" β†’ πŸ“© "You're early, sign up here" + formπŸ’¬ "template" β†’ πŸ“© "Duplicate this one" + template link

Line under the grid: Tip: say the keyword out loud in the Reel and put it in the caption. People comment what they hear.

Why FavStash

The only comment-to-DM tool that's part of your whole content loop

Save the Reels that inspire you β†’ Plan with your AI β†’ Schedule to Instagram, TikTok, YouTube, LinkedIn and X β†’ Engage: comment-to-DM on the posts that land β†’ Learn which posts and keywords worked β†’ back to Save.

Doing it by handA DM-only toolFavStash
Every comment answered with your linkNoYesYes
Preview the post, reply and DM before going liveβ€”VariesYes
Queue DMs when a post goes viralβ€”Varies, often on top plansYes
Set up and check automations from Claude or ChatGPTNoA fewYes
Schedule the post itself on 5 platformsNoNo, or Instagram onlyYes
Search the Reels you saved for your next hookNoNoYes
Post analytics in the same placeNoDM stats onlyYes

If DMs are your whole sales channel and you need multi-step flows, email capture or an AI inbox agent, a dedicated platform fits better. Compare in ManyChat alternative, or browse all comment-to-DM comparisons.

FAQ

Questions, answered before you ask

Still curious? Read the FavStash FAQ or ask support.

Ready when you are

Answer every comment, even while you sleep

Pick a post. Pick a keyword. FavStash handles the rest.