Social media DM API

Zernio's direct messaging API lets you send and receive DMs across 10 platforms. Build customer support, chatbots, and notifications with a unified messaging API.

Start building freeView API docs
  • 10 platforms
  • Real-time webhooks
  • One API

priya.raman

Thanks, got it! · 3h

elias.duarte

Is the shop open Sunday? · 6h

nadia.okafor

Love the new drop · 1d

@leahmarx Do you ship to Berlin?

@sofia Still in stock? 😍

@andrewww_ Where's my order? 🙌

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Warner Music Group
MoFlo
ClickUp
Readdy
RE/MAX
Moving Monkey®
Supported platforms

One API. 10 platforms

Send and receive direct messages on 10 platforms from one API

  • Reels
  • Stories
  • Carousels
  • Comments
  • DMs
  • Ads

Reels, stories, and DMs in one API

Publish, then answer the comments and DMs.

Explore Instagram
How it works

From signup to first message in three steps

1

Key name

e.g., Production API key

Permission

Read & write

Read only

Profile access

Full access (all profiles)

Create key

Get your API key

Sign up free, generate a key from the dashboard. First 2 social accounts free, unlimited posts.

2

Profile

Defaultdefault

Instagram

TikTok

X

LinkedIn

Facebook

Threads

YouTube

Pinterest

Bluesky

Reddit

Snapchat

Discord

WhatsApp

Telegram

Slack

iMessage

Google Business

Connect social accounts

Link accounts via OAuth. Each gets a unique ID for API calls.

3

lauravisuals

Replying as @kestrel.studio · Active now

Today

Hi! Can you send me the guide?

10:42

Sure! Here it is: kestrel.studio/guide

10:43

Got it, thank you!

10:44

Send & receive

List conversations and send replies, or get every new message pushed to your webhook.

Features

Everything you need to message

All platforms

Facebook

Instagram

X

Bluesky

Reddit

Telegram

WhatsApp

Slack

iMessage

TikTok

Send & receive messages

Text on all 10 platforms, plus images, video, and files wherever the platform allows them.

lauravisuals

@laura.visuals

Can I get the guide?
Sure! Here it is: kestrel.studio/guide
Got it, thank you! 🙌

Conversation threads

Messages grouped by conversation, with participant metadata and archiving.

Real-time webhooks

New messages pushed as they arrive on Facebook, Instagram, WhatsApp, iMessage, Telegram, Slack, and TikTok.

Interactive messages

Quick replies, buttons, and templates on Meta, WhatsApp, and Telegram.

Chatbot ready

Receive a message, process it, send a reply. Built for automated workflows.

For AI Agents

Your agent reads and answers every DM

496 tools on one OAuth connection. Nothing to install, nothing to self-host.

Know more

› claude

Claude Code v2.1.19

Opus 4.5 · Claude Max

~/software

›

✓ registered · https://mcp.zernio.com/mcp

✓ signed in over OAuth · no key pasted

✓ call_tool · 8 unread chats · Instagram, WhatsApp

✓ replies drafted · nothing sent yet

Claude Code session
Marketing infrastructure

Everything social, not just DMs

Posting, comments, analytics, and ads run on the same API and the same connected accounts.

  • Posting API

    Publish, schedule, and manage content across 16 platforms

    Simon Fairhurst@siimonfairhurst
  • Ads API

    Campaigns, boosts, and ad analytics in one API

    Meta Ads

    Pricing launch

    $412

    Summer Sale

    $40/day

    Active

    Retargeting

    $30/day

    Paused
  • Analytics API

    Every metric, one endpoint

    Views18.4K
    Likes3,410
    Views31.9K
    Comments58
    Total reach · last 7 days184.6K+12.4%
  • Comments API

    Moderate every comment

    sarah.klein

    Does this cover Threads as well?

    ReplyDMHide

    lauravisuals

    Shipped our whole calendar with this 🙌

    ReplyDMHide

    nate_builds

    Any way to schedule a carousel?

    ReplyDMHide
  • Comments to DM API

    Turn comments into DMs

    @lucia_dev Guide 🙌

    @andrewww_ Guide

    lucia_dev

    Here's the guide 👇 · now

    andrewww_

    Here's the guide 👇 · 1m

  • Scheduler API

    Schedule posts in every timezone

    Simon Fairhurst@siimonfairhurst

    Q3 recap is live 📈 Everything we shipped this quarter, in one place.

    Tue, Oct 14 · 09:00

  • Inbox API

    One inbox for comments, DMs, and reviews

    All platformsAll profilesAll accounts

    Olly Bennett

    · via +44 7700 900456

    Are you open on Sunday?

    2m

    Diego

    · via +1 646 555 0199

    Is my order ready to pick up?

    6m

    Nadia Okafor

    · via @nadia.okafor

    Love the new drop 😍

    9m

    Vela Notifications

    · via #orders

    New order #4821 from Lisbon

    20m

    Elias Duarte

    · via Google review

    ★★★★★ Worth the queue

    1h
  • Email API

    Read and send from Gmail and Outlook

    Lena FischerDemo on Thursday?
    now
    Contoso BillingInvoice INV-2041
    now
    northsupplyAny update on my order?
    9:40
  • Calendar API

    Events and open slots on every calendar

    Demo with Northwind

    Google Meet · 4 guests

    10:00

    Product review

    Teams · 6 guests

    12:00

    Free for everyone

    14:00 – 15:00 · 3 calendars

    Open
  • Files API

    Upload and share on Drive and OneDrive

    Launch photo.jpg
    Q4 report.pdf

Frequently asked questions

Build with the DMs API

Send and receive messages across 10 platforms with one integration.

Start for freeRead the docs
  • 10 platforms
  • Real-time webhooks
  • One API