AnyCable is an open-source WebSocket server written in Go with built-in delivery guarantees, presence tracking, and message ordering. It works with any backend — Ruby on Rails, Laravel, Node.js/TypeScript, Python/FastAPI, or any language that can make HTTP requests — via its pub/sub HTTP API. AnyCable handles 10,000+ concurrent connections per server and has been in production since 2017, powering 50+ companies including Doximity, CoinGecko, Jobber, and Circle.

How much does AnyCable cost?

AnyCable open source is free. Managed AnyCable is free for up to 2,000 connections. AnyCable Pro costs $1,490 per year for unlimited connections and instances — flat pricing that doesn't grow with your user count. Enterprise plans have custom pricing. Consulting is available at $200 per hour.

Does AnyCable work with Python, Laravel, or Node.js?

Yes. AnyCable works with any backend language. For Rails, it's a drop-in Action Cable replacement. For Laravel, there's a native SDK with broadcasting and channels. For Python/FastAPI, Node.js, or any other backend, you broadcast messages via AnyCable's HTTP pub/sub API — a simple HTTP POST from your application delivers messages to all connected WebSocket clients with ordering and delivery guarantees.

Is AnyCable HIPAA compliant?

Yes. AnyCable Pro and open source run on your infrastructure — real-time data never leaves your servers. This makes AnyCable compliant with HIPAA, SOC2, and other data sovereignty requirements. Nine healthcare companies use AnyCable in production, including Doximity (professional network for 80% of US physicians), Healthie, and Headway ($2.3B valuation).

How is AnyCable different from Socket.io?

Socket.io is a JavaScript library that provides WebSocket transport — you build reliability, presence, and authentication yourself. AnyCable is a standalone server with delivery guarantees, presence tracking, message ordering, and authentication built in. AnyCable works with any backend (not just Node.js), and because it's a separate process, WebSocket connections survive application deploys.

How is AnyCable different from Pusher or Ably?

Pusher and Ably are managed services that route your data through third-party servers — a problem for HIPAA and SOC2 compliance. Their pricing grows linearly with connections. AnyCable runs on your infrastructure (or use Managed AnyCable), offers flat pricing ($1,490/year for unlimited connections with Pro), and provides native SDKs for Rails and Laravel rather than generic client libraries.

AnyCable

Realtime server with delivery guarantees, presence tracking, and message ordering — built in.

Works with Rails, Laravel, Node.js, Python, and any backend via HTTP API.

Open source, managed, or on-premise Pro.

Start a free trial of SaaS, or on premise Pro

Why AnyCable?

Delivery guarantees, out of the box

Most WebSocket solutions don't guarantee delivery. AnyCable does. Missed messages are automatically recovered during connectivity issues — micro-disconnections, subway rides, or network switches. Your connections also stay alive during deploys, so users never notice a deployment.

10,000+ connections per server

Written in Go for minimal memory overhead on long-lived connections. Works with any backend — Rails, Laravel, Node.js, Python, or any language via HTTP pub/sub API. In production since 2017, powering 50+ companies.

The emulation below demonstrates how AnyCable handles connection failures and restores missed messages. You can try this feature yourself in our Demo application.

Managed, open source, or on-premise Pro

Start with AnyCable in its managed (SaaS) form, then switch to the on-premise Pro version as you scale. You can always move to open source, which is free. No code changes are needed to switch between any option — choose what's best for you today.

Secure and HIPAA compliant messaging

Using on premise AnyCable, Pro and open source, you store all realtime data, such as chat messages, on your servers and never have to send it to a 3rd-party. Simple, secure and compliant with HIPAA.

Works with any backend

AnyCable runs as a standalone server alongside your application. Broadcast from any backend via HTTP API — or use native SDKs for Rails and Laravel. Works with Hotwire, Turbo Streams, and any JavaScript framework out of the box.

Reuse your existing infra components

AnyCable doesn't require any additional infrastructure components for its operation and scalability: good old HTTP API and embedded NATS pub/sub server got you covered. And if you already have Redis or NATS, you can use it as well.

import { createCable } from "@anycable/web";

const cable = createCable();

// Basic pub/sub interface
let channel = cable.streamFrom("chatty/2025");

channel.on("message", (msg) => {
  // handle notification
});

// join the channel's presence set
channel.presence.join(user.id, { name: user.name })

channel.on("presence", (event) => {
  // handle presence updates
})

class ChatChannel < ApplicationCable::Channel
  def speak(data)
    message = data.fetch("message")
    name = user.name

    broadcast_to(
      workspace,
      action: "newMessage",
      html: render("chats/message", message:, name:),
      author_id: user.id
    )
  end
end

export class ChatChannel extends Channel {
  async speak(handle, params, data) {
    const { message } = data;
    const name = handle.identifiers.username;
    const payload = {
      event: "newMessage",
      name,
      message,
    };
   
    await broadcastTo(`roomId:${params.id}`, payload);
  }
}

# Broadcast from FastAPI via HTTP API
import httpx

@app.post("/messages")
async def create_message(msg: Message):
    async with httpx.AsyncClient() as client:
        await client.post(
            f"{ANYCABLE_URL}/api/v1/broadcasts",
            json={
                "stream": f"chat/{msg.room_id}",
                "data": msg.json()
            }
        )
    return {"ok": True}

Industries

Healthtech

HIPAA and SOC2 compliant — AnyCable runs on premise, data never leaves your infrastructure.
Powers patient-doctor communication, telehealth video, and real-time health monitoring.
Used as a critical component in software serving millions of patients.

"We use AnyCable for our dialer products, which is where real-time is critical — it's our video and voice platform. Anytime you restart your application, which happens when you deploy, you're gonna get connection severances. AnyCable allows them to keep that connection open. That Go service stays up, and you can continue shipping your Rails application as normal."

Ryan Stawarz & Austin Story Engineering at Doximity On Rails Podcast

Industries

Fintech

Real-time market data, live dashboards, transaction notifications.
Handles massive concurrent connections where every millisecond matters.

Industries

Field Services & IoT

Live GPS tracking, real-time dispatching, and EV charging infrastructure.
Native support for OCPP (Open Charge Point Protocol) for EV charger communication.
Keeps field teams and transit fleets in sync with low-latency connections.

Industries

Communities

Real-time messaging, live events, presence indicators, activity feeds.
Community platforms need WebSocket connections at scale — AnyCable delivers.
From creator communities to live interpretation — reliable delivery across use cases.

Industries

And more

Live notifications, real-time collaboration, streaming AI responses.
From marketing funnels to audience engagement — AnyCable powers the real-time layer.
Cost-efficient: SaaS expenses grow as your product grows, but AnyCable Pro does not.

Pricing

Choose option

Open-
source

Deploy to Heroku, Fly, AWS, and anywhere with Docker or K8s.

Key features:
- Hotwire support out-of-the-box
- Consistency
- JWT authentication
- Prometheus and StatsD instrumentation
Free
Learn more
Pro
Twice more memory efficient than open source, and:
- Consistency in cluster mode
- Adaptive scaling
- Slow drain on shutdown
- Binary compression
- Long-polling fallback
- Apollo GraphQL support (clients, Studio)
- Dedicated Slack-based support
$1490 per year
Unlimited instances
Free 2-month trial
Sign up
Managed

We run and support AnyCable Pro for you.

Free for early users
Sign up
Consulting
- Setup and deploy AnyCable
- Load test setup to prepare for scale
$200 per hour anycable@evilmartians.com