Chat · Voice · Broadcast API

Real-time chat and voice, built into your app in an afternoon

Astralink Nexus is a plug-and-play API and SDK that gives any game, website, or app text chat, voice chat, and FM-radio-style broadcast channels — plus channels that follow your world, direct messages, built-in email, and profile cards — without you standing up the infrastructure yourself. One account, any device.

For developers

One API for chat, voice, and broadcast

Everything you need to add real-time communication to your product, without building or operating the infrastructure yourself.

Text & voice chat API

Drop authenticated text and voice chat rooms into any game, website, or app with a few API calls. Presence, message history, moderation hooks, and reconnect handling are built in.

Channels created from your world

Channels can be spun up dynamically by scene name or world-map location, so anyone standing in the same place automatically lands in the same conversation — no manual room management on your end.

Email, built in

An internal in-app messaging system plus real email delivery — send and receive actual email — so players stay reachable even when they're offline.

Direct messages

Private one-to-one conversations between users, alongside your scene and broadcast channels, using the same API and moderation hooks.

Profile pictures & profile cards

Every user gets a profile picture and a profile card that can carry external links — Discord, socials, a portfolio — out of the box.

Multiplatform by default

One account, any device. Players log in from desktop, mobile, or browser and stay in sync with the same game chat wherever they connect.

Dynamic channels

Channels that follow your world, not the other way around

Astralink Nexus can create a channel automatically for a scene name or a world-map location, so anyone standing in the same place lands in the same conversation. As players move between areas, they move between channels — no manual room management on your end.

  • Channels created and retired automatically as players move
  • Key channels by scene, zone, coordinate, or any string your game already uses
  • Works the same for a lobby, a dungeon instance, or a persistent open world
Broadcast channels

Give your users an "FM radio" for voice

Transmission channels let one or more sources broadcast a live voice or audio stream to any number of listeners who tune in — like an in-app radio station. Use it for live event commentary, in-game announcements, DJ booths, or always-on ambient channels, all through the same API as your chat and voice rooms.

  • Unlimited listeners per channel, independent of room voice limits
  • Push-to-transmit or always-on broadcast sources
  • Works alongside your existing text and voice rooms

Frequently asked questions

What is Astralink Nexus?
Astralink Nexus is an API and SDK product that gives developers text chat, voice chat, FM-radio-style broadcast channels, direct messages, and built-in email they can drop into any game, website, or application without building real-time infrastructure from scratch.
Who is Astralink Nexus for?
Developers and studios who need chat or voice in their own product — indie game teams, community platforms, and app builders who want communication features without standing up their own signaling, voice, and media servers.
How do dynamic, location-aware channels work?
You key a channel by whatever your game already tracks — a scene name, a world-map location, a zone ID. Astralink Nexus creates the channel automatically the first time it's used, and anyone in the same place lands in the same conversation, without you managing rooms by hand.
What is the 'FM radio' broadcast feature?
Broadcast channels let one or more sources transmit a shared voice or audio stream to any number of listeners who tune in, similar to an FM radio station — useful for in-game announcements, live events, or shared audio experiences.
Does it handle email and direct messages too?
Yes. On top of chat and voice, users get direct messages, an internal in-app mailbox, and real send/receive email delivery, plus a profile with a picture and a profile card that can carry external links.
Can players use it from any device?
Yes — Astralink Nexus is multiplatform by default. Users log in with one account from desktop, mobile, or browser and stay in sync with the same game chat wherever they connect.
Is this a hosted product or something I self-host?
Astralink Nexus is a hosted API: you integrate the SDK or REST/WebSocket API into your project and we run the chat, voice, and broadcast infrastructure.
When can I start integrating?
The API is under active development. Create an account to be notified as early access opens.

Building something that needs chat or voice?

Create an account to follow along as the API opens up for early access.

Get early access