Instagram Comment to DM Automation API

Auto-send a DM when someone comments a keyword on your Instagram post or reel, with an optional public reply, all through one API.

Trigger a DM on comments that match your keywords
Add an optional public reply under the comment
Automate one post or every post on the account
Real-time delivery through managed webhooks, no App Review on your side

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POST https://api.postpeer.dev/v1/posts
{ "platforms": ["twitter", "linkedin"], "content": "Hello world!" }

Published

2 platforms

TwitterLinkedIn

All posts delivered

Scheduled

queue

Queued

847

Sent

Next: in 15 min

Platforms

connected

XLIFBTT

One API, every platform

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Add Social Media to Your Product in Three Steps

Connect once, then publish, schedule, and read data through the same API.

Get Your API Key

Sign up and get your API key instantly. No sales calls or complicated setup.

Integrate in Minutes

Connect once to PostPeer to publish, schedule, analyze, manage comments, and handle messages.

Support Every Major Platform

Give your users access to major social platforms without building and maintaining each integration yourself.

New to PostPeer? Read the getting started guide

Explore Requests and Responses by Format

Use the same endpoint and change only the fields required for each publishing format.

POSTRequest · Create Automation

curl -X POST "https://api.postpeer.dev/v1/comment-automations/" \
 -H "x-access-key: your-api-key" \
 -H "Content-Type: application/json" \
 -d '{
    "accountId": "acc_ig_biz_789",
    "name": "Link in DM",
    "postScope": "specific",
    "platformPostId": "17901234567890123",
    "keywords": ["link", "guide"],
    "matchMode": "word",
    "publicReplies": ["Sent you a DM!"],
    "dmMessage": "Here is the link: https://example.com"
 }'

202Response · Create Automation

{
    "success": true,
    "automation": {
      "id": "AUTOMATION_ID",
      "status": "active",
      "trigger": { "postScope": "specific", "keywords": ["link", "guide"], "matchMode": "word" },
      "actions": { "publicReplies": ["Sent you a DM!"], "dmMessage": "Here is the link: https://example.com" }
    }
}

Explore Instagram Comment to DM API Requests and Responses by Action

View the PostPeer documentation

Everything You Need for Instagram Comment to DM

Automate comment-to-DM workflows without building Meta's webhooks, keyword matching, and messaging integration yourself. One API for creating, running, and tracking automations.

Keyword-Triggered DMs

Set trigger words like `link`, `price`, or `guide`. When a new comment matches, PostPeer sends the commenter your DM automatically. Leave keywords empty to reply to every new comment on the post.

Optional Public Reply

Post a public reply under the comment too, such as "Check your DMs!". Add up to five alternatives and PostPeer picks one per comment so the automation reads naturally.

Target a Post or the Whole Account

Bind an automation to one Instagram post or reel by its ID, or run it across every post on the account. Fetch eligible posts from the list-posts endpoint.

Match Modes and Exclude Words

Match keywords as a whole word, anywhere in the comment, or as the exact text. Add exclude keywords to skip comments that should never trigger a DM.

Managed Webhooks

PostPeer subscribes the Instagram account to comment webhooks and delivers each DM in real time with retries. No webhook server and no Meta App Review on your side.

Logs, Stats, and Pause

Every run is logged with the comment, commenter, and delivery status. Track triggered, succeeded, and failed counts, and pause or resume any automation instantly.

Need More Than Automations?

Add publishing, scheduling, analytics, comments, and messaging to the same connected Instagram workflow.

Instagram Comments

List comments and replies, create top-level comments, reply, hide, and delete comments through PostPeer.

Explore Instagram Comments

Instagram Messaging

List conversations, read message history, and send DM replies through PostPeer.

Explore Instagram Messaging

Instagram Posting

Publish feed posts, reels, carousels, and stories to Instagram through PostPeer.

Explore Instagram Posting

Instagram Analytics

Bring supported Instagram performance data into reporting, dashboards, and analytics workflows.

Explore Instagram Analytics

Ship Instagram Comment to DM in Any Stack

Whether your product is a Node app, a no-code workflow, or an AI agent, the same PostPeer API can power the publishing workflow.

Dev Stack

Typed SDKs and predictable REST APIs let you integrate PostPeer into the stack your application already uses.

Node.js SDK
Python SDK
REST + cURL
TypeScript-first types

No Code

Trigger publishing workflows from tools your team already uses.

Setup guides

AI Agents & MCP

Give Claude, Cursor, Codex, or your own AI agent the ability to publish, schedule, and interact with social workflows through PostPeer.

Connect via MCP

Beyond Instagram: Every Supported Platform

Start with Instagram, then reach every other network through the same API.

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Instagram API

Publish to Instagram via one API.

Add More Social Capabilities

Use the same connected accounts to schedule, analyze, manage comments, and handle conversations.

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Frequently Asked Questions

Power Your Next Project With a Unified Social Media API

Give your users posting, scheduling, analytics, and engagement features through one API your team can maintain.

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