Event Sourcing That Doesn't Suck

TypeScript-native. Runs on the edge. Zero ops. Ship your app in minutes while your competitors are still configuring VPCs.

We got tired of event stores that need a PhD to operate. So we built one that just works. No clusters to manage. No drivers from 2015. No surprise $10k cloud bills. Just pure, append-only bliss running globally on Cloudflare.

Read the Docs

First 10 devs get 1M events/month free for a year. No BS. No credit card.

import { DeltaBase } from '@delta-base/server';

// Initialize the DeltaBase client
const deltabase = new DeltaBase({
  baseUrl: 'https://api.delta-base.com',
  apiKey: 'your-api-key',
});

// Get event store client
const eventStore = deltabase.getEventStore('my-event-store');

// Create and append an event
const event = {
  type: 'organization.created',
  data: {
    id: 'org-123',
    name: 'Acme Inc.',
    stripeCustomerId: 'cus_example_123',
  },
};

const result = await eventStore.appendToStream(
  'org-123', 
  [event]
);

Current Event Stores Are a Dumpster Fire

Let's be honest. You know event sourcing is the right pattern. But every time you try to adopt it, you hit the same walls:

🔥 The Setup From Hell

> "Just spin up this 3-node cluster"

> "Don't forget to configure replication"

> "Here's our 47-page operations guide"

Yeah, no thanks.

💸 The Bill That Makes You Cry

> Running EventStore in production? $5k/month minimum

> Want multi-region? Double it

> Need actual performance? Triple it

Your CFO is now your enemy

🦖 The Stone-Age Developer Experience

> Java drivers that hate TypeScript

> XML configuration in 2025

> "Connection pooling" (what is this, 2008?)

Your IDE gives up and cries

🤡 The Complexity Circus

> Distributed systems PhD required

> Eventual consistency nightmares

> "It works on my machine" (it doesn't)

You just wanted to append some events

we fixed this mess

The DeltaBase Way

✅ Actual Zero-Ops

$ deltabase create my-store

# Done. Seriously. That's it.

✅ TypeScript That Doesn't Make You Sad

const eventStore = deltabase.getEventStore('my-store');

const result = await eventStore.appendToStream('user-123', [{
  type: 'user.signed_up',
  data: { email: 'chad@startup.com' }
}]);

# Full type safety. Autocomplete that works. Your IDE is happy.

✅ Edge Performance Without the Pain

> 300+ locations worldwide

> ~50ms reads from anywhere

> No cold starts

> No "warming up" your lambdas

✅ Pricing That Won't Bankrupt You

> Pay per event, not per cluster

> No compute charges

> No bandwidth gotchas

> Your CFO might actually smile

Look How Stupidly Simple This Is

import { DeltaBase } from '@delta-base/server';

// 1. Connect (one line, chief)
const deltabase = new DeltaBase({ apiKey: process.env.DELTABASE_KEY });
const eventStore = deltabase.getEventStore('my-store');

// 2. Write events (append-only, baby)
await eventStore.appendToStream('order-420', [{ 
  type: 'pizza.ordered',
  data: { toppings: ['pepperoni', 'shame'] }
}]);

// 3. Build state (pure functions ftw)
const result = await eventStore.aggregateStream('order-420', {
  initialState: () => {},
  evolve: (state, event) => orderReducer(state, event)
});

const currentOrder = result.state;

// That's it. No schemas. No migrations. No suffering.

DX That Doesn't Make You Want to Quit

The 5-Minute Challenge

We dare you to go from zero to a working event-sourced app in 5 minutes:

# 1. Install (30 seconds)

npm install -g deltabase

# 2. Create a store (5 seconds)

deltabase create my-app

# 3. Start building (4 minutes 25 seconds)

deltabase dev

Spoiler: You'll make it with time to spare.

🚀 Spins Up in Seconds

`deltabase create store-name`. Boom. Global event store. Your move, AWS.

🌍 Lives on the Edge

Your events are ~50ms from every user on Earth. Physics is the only limit.

🔷 TypeScript First

Built for TypeScript from day one. Not bolted on. Not "coming soon". Right now.

💻 Local Studio

Browse your events. Debug streams. Test webhooks. All local. All fast.

📊 Production Dashboard

Monitor everything. Break nothing. Sleep soundly.

🤖 AI-Friendly Code

Event sourcing = pure functions = your copilot actually helps instead of hallucinates.

📚 Docs That Don't Suck

Examples that work. Guides that guide. No PhD required.

Built for Builders Who Ship

SaaS Platforms

Event store per customer. True isolation. Sleep at night.

Fintech Apps

Every transaction logged forever. Regulators happy. You happy.

E-Commerce

Cart events, order tracking, inventory. Black Friday? Bring it.

Games & Real-Time

Player actions at scale. Leaderboards that don't lie.

That Weird Thing You're Building

If it needs events, we got you.

Pricing That Won't Insult Your Intelligence

The Deal

> Pay for events written

> Pay for storage used

> That's it

No Hidden Fees

> ❌ No cluster charges

> ❌ No compute costs

> ❌ No bandwidth surprises

> ❌ No "enterprise tax"

Early Access = Better Deal

First 10 developers get 1M events/month free for a year. Not a trial. Not a trick. Just our way of saying thanks for believing in us.

Yeah, We've Done This Before

Built by engineers who:

> Shipped event-sourced systems at Fortune 150 scale

> Survived countless production incidents

> Got tired of 3am pages about EventStore

> Decided to fix it once and for all

We've been in the trenches. We built DeltaBase to get out of them.

The Stuff You're Wondering

"Is this just EventStore with better marketing?"

Hell no. Built from scratch for serverless. No VMs. No TCP sockets. No legacy baggage.

"What's the catch?"

There isn't one. We make money when you scale. You scale when you're successful. Win-win.

"Can I export my data?"

Your events are yours. Export anytime. No lock-in. We're confident you'll stay because we don't suck.

"Is it ACTUALLY production-ready?"

We're in early access. Core is rock solid. We're polishing the experience. Real teams are shipping real apps.

"Do I need to use Cloudflare Workers?"

Nope. Any HTTP client works. Next.js, Express, your random Python script. We don't judge.

Event Sourcing That Doesn't Suck

Stop Reading. Start Building.

Δbase