AntMessenger Open Platform - Enterprise IM API & OA Single Sign-On Integration

Home API setup Q&A API compliance

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Instant messaging that plugs into your own systems

Ant Messenger brings business events into the conversation: approvals, alerts and bot replies arrive over the server API, and account systems can plug in through single sign-on.

You can run the server yourself or use our hosted environment, and the feature set is the same in both cases. Up to five devices can stay signed in on a single account.

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What the API covers

Build it yourself

Build it yourself

The server runs in your own environment or in a hosted one, with the same feature set either way

Encryption in the interface

Encryption in the interface

Conversations are end-to-end encrypted, and the server APIs carry their own auth

Any device, same session

Any device, same session

Up to five devices stay signed in, with conversations and read position kept in step

Groups you can manage

Groups you can manage

A single group holds 100,000 members, and join approval and posting rights can be set separately

Business messages in chat

Business messages in chat

Approvals, alerts and documents can be pushed into a conversation by the server API

Masked for outsiders

Masked for outsiders

Member details can be masked so contact information does not leak with the directory

Files on demand

Files on demand

Cloud disk files stay encrypted, with no cap on size or age

Open

Tools included

The server SDK and API documentation are open, so the mechanism can be verified

Downloads

Download Mac (M1)

Sign in on the desktop by scanning from the phone app

Full list

Download Windows

Ant MessengerMessaging that plugs into your own systems

Email us: Postmaster@mail.antmessengera.im

Site mapHome API setup Q&A API compliance

DownloadsAndroidiPhone/iPadMacMac (M1)Windows

Site map
Downloads

Ant Messenger

Messaging that plugs into your own systemsEmail us: Postmaster@mail.antmessengera.im

Instant messaging that plugs into your own systemsThis page is the official entry point. Client installers, self-hosted server packages, developer tools and interface documentation are all published here; we cannot vouch for files obtained from other sources.Ant Messenger is a free, open-source messaging application. Conversations are encrypted end to end, with burn-after-reading, screenshot limits and two-way deletion available. One account can hold up to five signed-in devices, and a single group can carry up to 100,000 members.What we publish

Clients - Android, iPhone or iPad, Mac (M1) and Windows.

Server packages - self-hosted deployment with documentation.

Developer tools - server SDK, sandbox environment and request console.

Interface capabilities - server-side push, webhook callbacks and bots in groups.

Account integration - LDAP/AD and OIDC single sign-on.

Build it yourself

Android

iPhone or iPad

Mac (M1)

Windows

The desktop app authorises through a QR scan taken from the phone client.Other official pages

Official feature notes

Official security notes

Deployment and single sign-on

Official download entry

Rate limits and SSO questions

How interface data is handled

Official contact: Postmaster@mail.antmessengera.im