Real-time made simple

Stop over-engineering realtime apps

Everything you actually need. Nothing you don't. Ready in 5 minutes. Flat-rate pricing. No bloat, no SDK required, no billing surprises.

No credit card · Free forever For developers who value their time Email us for custom plans →
client.js
// Connect from any browser
const stream = new EventSource(
  "https://api.sse-server.com/stream?key=YOUR_KEY"
);

stream.onmessage = (msg) => {
  console.log("event:", msg.data);
};
# Send an event from your backend
curl -X POST https://api.sse-server.com/send \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{"event":"update","data":"hello"}'
No client SDK required Works in any modern browser Auto-reconnect built in

Built for developers who value their time

Stop reading 100-page docs. Start shipping in minutes.

01 Your Time Matters

5 minutes, not 5 hours

Copy 3 lines of code. Done. No SDKs to install, no docs to read, no "best practices" to learn. Just make it work and move on.

02 Predictable Costs

No bill shock

Flat-rate pricing. No per-connection surprises like Pusher. You know exactly what you're paying. That's it.

03 No Learning Curve

Not another SDK

Uses native browser EventSource. If you know fetch(), you know how to use SSE-Server. Seriously, that simple.

04 Real Performance

Actually fast

Sub-20ms message delivery (P50). No compromises for simplicity. Faster than what you'd expect from a lightweight service. Fast enough for dashboards, notifications, live updates.

05 Easy to Debug

It's just HTTP

See everything in your browser dev tools. No magic, no hidden protocols. Debug like you debug everything else.

06 Genuinely Free to Start

No credit card needed

Build, test, deploy—all for free. Only pay when you actually have users. Perfect for side projects and MVPs.

Why Evora?

A simpler approach for apps that don't need full-featured complexity.

What Matters SSE-Server Full-Featured Platforms
Message latency (P50) <20ms 50ms+ (typical)
Setup time 5 minutes 45-60 minutes
Starting price $0 (truly free) $49-99/month
Billing model Flat rate (predictable) Per-connection (surprises)
Learning curve Minimal (just HTTP) Steep (complex SDKs)
Best for Simple notifications Everything + the kitchen sink

Simple real-time without the overhead

Most real-time apps just need to send notifications—not channels, presence, webhooks, and 50+ API endpoints. That's where Evora shines.

With Evora, you get: Send event → User sees it. Done.

✓ 5-minute setup • ✓ Flat-rate pricing • ✓ No credit card needed

💬 For Students & Open Source

We remember being where you are.

Get 3x the free tier

30,000 connections + 150M events/month, forever. No credit card. No expiration.

Why we do this

Great developers start as students. We invest early because when you're a tech lead at a startup in 5 years, you'll remember who helped you when you had nothing.

How to get it

Email [email protected] with your student email or GitHub username. Tell us what you're building. We verify in 24 hours.

Request Student Tier → Also available for open source

Perfect for what developers actually build

If your app needs real-time updates and you don't want complexity.

  • Dashboards & admin panels (live metrics)
  • Activity feeds & notifications
  • Live order status & alerts
  • System monitoring & health checks
  • Progress tracking (uploads, processing)
  • Live search & autocomplete feedback
  • Support tickets & customer updates
  • Any 1→many broadcast (not bidirectional chat)

Secure, simple, and built for developers

SSE is simple by design. We add the security and reliability you expect in production.

Security

HTTPS by default

All traffic runs over HTTPS. Tokens and keys protect your streams. You can also add your own application-layer encryption if required.

Privacy

Optional end-to-end encryption

For extra privacy, encrypt payloads client-side using libraries like TweetNaCl.js. SSE-Server simply transports your encrypted data without inspecting it.

Developer-first

Made for builders

Clear docs, minimal concepts, and examples you can copy into your existing stack. Spend time on features, not plumbing.

Why SSE is enough for 90% of realtime apps

Most realtime apps don’t need full bidirectional WebSockets. They need 1→many streaming, low latency, and reliability.

  • One-way streaming from server to many clients
  • Native browser support via EventSource
  • Automatic reconnect built-in
  • Easy scaling and load balancing
  • No connection juggling or stateful socket servers
  • Perfect for dashboards, feeds, alerts, and telemetry
  • Less complexity → fewer bugs
  • Works alongside normal HTTP APIs