Win More Pitches with Working Demos
Show clients working prototypes, not static mockups. Create professional demos in 4 hours instead of 2 weeks.
Define Data in Code
Use our SDK to define endpoints with realistic mock data—no backend needed
Get Stateful Data
Symulate provides realistic, stateful operations—create, update, delete all work
Create Isolated Demos
Spin up separate demo environments for each client—perfect for competing pitches
Reuse Everything
Your frontend code stays—just configure Symulate to use your real backend when you win
From Inquiry to Won Deal in Days
Stop losing pitches to agencies with better demos. Show clients working prototypes, not PowerPoint slides. Win 2x more projects.
Client Inquiry
Client needs an e-commerce site. You have 5 days until the pitch meeting.
Build Demo Fast
Create working demo with realistic products in 4 hours. AI generates client-specific data.
Win the Pitch
Client browses products, adds to cart, completes checkout. They're experiencing, not imagining.
Build the Real Thing
Now you won the project, build the real backend however you want. No vendor lock-in.
Simple. Powerful. Type-Safe.
Define your endpoints with full TypeScript support and let AI generate realistic mock data
import { defineEndpoint, m, type Infer } from "@symulate/sdk";
// Define schema with semantic types and AI instructions
const UserSchema = m.object({
id: m.uuid(),
name: m.person.fullName("Typical German names"),
email: m.internet.email(),
department: m.string("Tech company department")
});
type User = Infer<typeof UserSchema>;
// Define endpoint with full type safety
export const getUsers = defineEndpoint<User[]>({
path: "/api/users",
method: "GET",
schema: UserSchema,
mock: {
count: 5,
instruction: "Generate diverse tech company employees"
}
});
// Use it anywhere - fully typed!
const users = await getUsers();| Name | Department | ID | |
|---|---|---|---|
| Klaus Schneider | klaus.schneider@techcorp.de | Engineering | a3f8d9e2... |
| Anna Müller | anna.mueller@innovate.io | Product Design | b7e2c8f1... |
| Stefan Weber | stefan.weber@techcorp.de | Data Science | c9d1e4f3... |
| Julia Fischer | julia.fischer@devstudio.com | Marketing | d4e7f2a1... |
| Markus Hoffmann | markus.hoffmann@startuplab.co | DevOps | e8f3a5d2... |
Switch to Production in 1 Line
When your backend is ready, just update the environment
import { configureSymulate } from "@symulate/sdk";
configureSymulate({
environment: 'production', // 👈 Just change this!
backendBaseUrl: 'https://api.production-app.com'
});Beyond Mock Data: Real Backend Experience
Traditional endpoints simulate responses. Stateful collections give you a real backend with full CRUD operations, server-side pagination, and persistent state—perfect for customer demos and prototyping.
import { defineCollection, m } from "@symulate/sdk";
// Define a stateful collection with CRUD
const products = defineCollection({
name: "products",
basePath: "/api/products",
schema: m.object({
id: m.uuid(),
name: m.commerce.productName(),
price: m.commerce.price(),
inStock: m.boolean()
}),
seedCount: 50
});
// Full CRUD - state persists across requests
const list = await products.list({ page: 1, limit: 20 });
const item = await products.create({ name: "..." });
await products.update(item.id, { price: 99.99 });
await products.delete(item.id);Multiple Persistence Modes
Branch Isolation
Isolate data per customer, environment, or feature branch. Perfect for demos and multi-tenant testing.
branch: "customer-acme"branch: "demo-fintech"branch: "dev"Customer Demos
Create isolated data environments for each customer demo. Show them their data, not generic examples.
Interactive Prototypes
Build fully functional prototypes that remember state. Test real workflows before building backend.
Team Collaboration
Share data across devices with cloud persistence. QA can test with real scenarios, not hardcoded mocks.
| Feature | Traditional Endpoints | Stateful Collections |
|---|---|---|
| Data Persistence | Static Responses | Full State Management |
| CRUD Operations | ||
| Pagination | Client-side | Server-side |
| Multi-tenant Isolation | ||
| Read-After-Write Consistency |
Pre-Generated Demos That Win Customers
Stop showing the same generic demo to every prospect. Create custom AI-generated environments tailored to each customer's industry, use case, and data requirements.
Traditional Demos
- Same generic data for every customer
- Data regenerates during presentation
- Wastes AI tokens during live demos
- No customization per prospect
Tenant Demos
- Custom data per customer (healthcare, automotive, e-commerce)
- Pre-generated and stable - data never changes mid-demo
- Zero AI tokens during presentations
- One API key per demo - instant SDK integration
Perfect For
Sales Demos
Custom environment for each prospect with industry-specific data
Training
Safe sandbox for new users to practice without affecting production
Trade Shows
Pre-loaded offline demos that work without internet connection
Customer POCs
Isolated test environment with their real-world data patterns
Built for Modern Development
Every feature designed to eliminate backend blockers and accelerate shipping
Win More Pitches
Show working demos in client meetings, not static mockups. Double your win rate by letting clients experience your vision.
4 Hours Instead of 2 Weeks
Create agency-grade demos in hours, not weeks. Save $6,000-10,000 in developer time per demo.
Client-Specific Demos
Unlimited demos per project. German fashion shop, Indian electronics store - each client gets their own custom data.
AI-Powered Realism
Generate data so realistic your clients won't know it's a demo. Advanced AI creates contextually perfect mock data.
Branch Isolation
Complete confidentiality between clients. Each demo is isolated - perfect for handling competing clients under NDA.
Template Reusability
Build once, reuse forever. First client takes 4 hours, tenth client takes 30 minutes. Compound your speed.
Team Collaboration
Your whole agency works together. Developers, designers, and sales all access the same professional demos.
Instant Updates
Client wants changes? Update data instantly. No waiting for backend deployments or database migrations.
No Vendor Lock-in
Demos are just for pitching. When you win the project, build the real backend however you want. Zero migration cost.
Type-Safe Development
Full TypeScript support means your developers work fast and confidently. Catch errors before the client sees them.
The Paradigm Shift
Traditional development waits for backends. Symulate flips it upside down.
Traditional Way
Symulate Way
Save 3-9 Weeks Per Feature
Development teams using Symulate ship features 60-80% faster by eliminating backend dependencies. Frontend and backend teams work in parallel, cutting total development time dramatically.
Zero Symulate Infrastructure in Production
In production, Symulate code stays in your bundle but only makes standard HTTP requests to your backend. No mock data generation, no AI calls, no Symulate servers—just regular API calls.
During Development
In Production
# That's it - Symulate is completely removed from production
REACT_APP_ENVIRONMENT=production
REACT_APP_API_URL=https://api.yourapp.com
# Your app now talks directly to your backend
# Zero Symulate code in the bundle
# Zero runtime dependencies
# Zero vendor lock-inSmaller Bundle
No mock code shipped to users
Full Control
Your infrastructure, your rules
Zero Risk
No production dependencies
Three Steps to Ship Faster
Get from idea to working prototype in minutes, not weeks
Define Your Data
Use semantic types to describe your API structure. No manual mock data writing required.
m.person.fullName()m.internet.email()m.uuid()Build Your UI
Get instant, realistic data from AI. Build complete features while backend is in progress.
Ship to Production
Change one environment variable to switch from mocks to your real backend. Zero refactoring.
environment: 'production' See The Difference
How Symulate compares to traditional mock API tools
| Feature | Symulate | Others |
|---|---|---|
| AI-Generated Realistic Data | ||
| Unlimited CI/CD Testing | Rate limited | |
| TypeScript Type Safety | ||
| Smart Caching (<10ms) | ||
| One-Line Production Switch | Manual refactoring | |
| Monthly Cost (for similar features) | $0 Free tier | $49+ Per month |
Stop Waiting for Backends. Start Shipping Today.
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