Pain 01
❌ Wasting weeks wiring multi-workspace isolation, membership mapping, and cross-org access rules.
Production-Ready B2B Infrastructure
The Ultimate .NET Backend B2B Boilerplate with Multi-Workspace Multi-Tenancy And White-Labeling APIs
Save 200+ hours of backend architecture work. Launch your production-ready B2B SaaS API this weekend with Multi-Workspace Multi-Tenancy, White-Label Domain Infrastructure, Granular RBAC, Complete Stripe Billing, and support for users joining multiple organizations.
Watch SaaSKit in Action: Build a B2B SaaS in 5 Minutes
The Pain
Why do 90% of indie SaaS projects fail?
Because developers burn months rebuilding backend infrastructure instead of delivering the logic customers actually pay for.
Pain 02
❌ Dealing with broken Stripe webhooks and manual currency management.
Pain 03
❌ Setting up granular, secure RBAC token validation and client integration contracts.
Or just use SaaSKit and focus on your core product features from Day 1.
Tech Stack
API-first stack with production-grade defaults
Runtime
.NET Core 8/9
API Surface
REST / JSON
Billing
Stripe
Docs
Mintlify
Database
SQL Server / PostgreSQL
Core Features
A backend foundation built for custom clients and integrations
Hero Feature
Multi-Workspace Multi-Tenancy & Complete White-Labeling
Separate schemas, automated tenant subdomains, branding payloads, and multi-organization membership flows are already exposed through stable APIs so one user can work across multiple organizations cleanly.
Workspace Isolation
Keep organization data locked behind consistent query filters, membership checks, and routing rules.
Automated Subdomains
Dynamically provision secure, tenant-specific subdomains like tenant1.yourdomain.com / tenant2.yourdomain.com instantly upon registration.
Dynamic Branding APIs
Expose logos, colors, app names, email assets, and per-workspace settings through structured endpoints.
Security
Granular RBAC Security
Claims-based backend token authorization, policy-driven controller guards, and normalized permissions give client applications and integrators a stable auth contract from day one.
Billing
Bulletproof Stripe Integration
Tiered pricing support, automated webhook processing, and subscription lifecycle orchestration are already handled inside the service layer.
Interactive Demo
Explore the Live Demo
Login as Admin / Tenant and inspect how tenant switching, policy evaluation, and billing state transitions behave in the live environment.
Mintlify Docs
Read the Documentation
We have documented every configuration step, frontend layout, and core background engine using Mintlify so you can deploy without getting lost.
Go to Mintlify DocsPricing
Lifetime Access
Buy once and connect your own client applications to a backend foundation that is already monetization-ready.
$129
Single-tier license via Gumroad
Multi-workspace multi-tenancy API core
Complete white-labeling system
Granular RBAC policy layer
Stripe billing and webhook workers
Mintlify documentation access
Ideal for API-first product teams