TenantShield

The SaaS Backend Built for Regulated & High-Risk Industries

The SaaS Boilerplate Built for When a
Cross-Tenant Data Leak Would End Your Company

Most boilerplates trust developers to write correct tenant filters. TenantShield enforces isolation at the database layer (FORCE RLS). Combined with WORM immutable logging and Edge-level active defense, we prevent breaches before they happen.

Explore Live Sandbox Read Architecture

COMPATIBILITY MATRIX

Next.js 16 (App Router) Supabase Database & Auth TypeScript 5 Type-Safe Upstash Redis Edge Defense

Vercel Enterprise Partner Ready

Supabase RLS Enforced

SOC2 Compliance Architecture

GDPR Compliant Audit ledger

The Security Risk

One Missing Line of Code. Every Client's Data Leaked.

Standard SaaS boilerplates isolate data at the application layer. If a developer forgets a single .eq('tenant_id', currentTenant) filter, Client A sees Client B's private invoices, contracts, or credentials.

The Tenant Isolation Time Bomb

How one missing line of code leaks all client data.

Typical Boilerplate (Trust-Based)

// app/api/invoices/route.ts // ❌ VULNERABLE: Application-level isolation (Trust-based) import { createClient } from '@/lib/supabase/server'; export async function GET(req: Request) { const supabase = await createClient(); // Developer forgot to add: // .eq('tenant_id', currentTenantId) // // ⚠️ CRITICAL VULNERABILITY: // This query leaks invoices of ALL tenants // to any authenticated user! const { data, error } = await supabase .from('invoices') .select('*'); return Response.json(data); }

The Risk: A developer working at 2 AM forgets to add the tenant ID filter. Supabase executes the query with system context and leaks invoices across organizations. No compile-time error. No runtime exception. Just a silent data leak.

TenantShield (FORCE RLS Enforced)

// app/api/invoices/route.ts // ✅ SECURED: Database-enforced isolation (FORCE RLS) import { createClient } from '@/lib/supabase/server'; export async function GET(req: Request) { const supabase = await createClient(); // FORCE RLS is active on the 'invoices' table. // The DB session is locked to the user's tenant. // // 🛡️ ZERO LEAK GUARANTEE: // Even without a manual tenant filter, // PostgreSQL automatically restricts results // to the user's tenant_id! const { data, error } = await supabase .from('invoices') .select('*'); return Response.json(data); }

The Solution: Row-Level Security is forced at the PostgreSQL level. When a user requests data, the DB intercepts the transaction, extracts the tenant session header, and isolates the query automatically. A developer mistake cannot leak data.

Compliance Standard:

Meets SOC2 Trust Services Criteria for Security & Confidentiality out-of-the-box.

Learn how FORCE RLS secures 14 tables

Core Architecture

Four Defensive Security Layers

TenantShield is built around a defense-in-depth model that protects your customer database even if your front-end code is compromised.

FORCE RLS Isolation

Enforced at the physical PostgreSQL engine. Policies run on all 14 tables, even preventing service keys from bypassing isolation if user session context is set.

0% Leak Probability

WORM Immutability

Write Once Read Many database trigger blocks all edits or deletes of audit logs, cryptographically chaining entries using SHA-256 blocks stored in cloud buckets.

Auditor Approved Ledger

SOAR Edge Defense

Next.js Edge Middleware checks client IPs at CDN latency. Repeated brute-force, SQL injection, or suspicious requests are blocked in Redis under 4ms.

Sub-4ms Edge Filter

Centralized SOC

Real-time Security Operations dashboard, active threat sandbox, customizable notification thresholds, and AI CISO PDF reports for compliance.

AI-Generated Reports

Competitive Landscape

Security Comparison

Traditional boilerplates help you setup Stripe and UI templates. TenantShield provides the critical security infrastructure required to pass enterprise procurement audits.

Security Feature	TenantShield Core	ShipFast	MakerKit / Others
PostgreSQL FORCE RLS isolation (14 tables)	✅ ENFORCED	❌ App Layer Only	❌ App Layer Only
WORM Immutable Audit Vault (Trigger protected)	✅ ENFORCED	❌ None	❌ None
SHA-256 Cryptographic Audit Hash Ledger	✅ INCLUDED	❌ None	❌ None
Edge Middleware IP Blocking (Redis negative cache)	✅ < 4ms latency	❌ None	❌ None
Tenant Intranet Whitelisting (Edge locked)	✅ INCLUDED	❌ None	❌ None
Real-time Security Operations Center (SOC) dashboard	✅ INCLUDED	❌ None	❌ None
Active Threat Simulator & SOAR Alerts	✅ INCLUDED	❌ None	❌ None
AI-Generated CISO Compliance PDF Reports	✅ INCLUDED	❌ None	❌ None
Stripe Billing integration	⚠️ Detailed Docs	✅ INCLUDED	✅ INCLUDED

🛡️ "They have Stripe. We have FORCE RLS. You need both." Integrate Stripe in an afternoon using our template documentation, but don't attempt to build compliance security architecture from scratch.

Interactive ROI Estimator

Calculate Your Cost vs. Build Savings

Building FORCE RLS, cryptographic ledgers, Edge SOAR, and SOC dashboards takes specialized security engineering. Estimate how much TenantShield saves you.

Developer Hourly Rate$85/hr

$40/hr (Junior/Offshore)$150/hr (Senior)$250/hr (CISO/Security Architect)

Months of Dev Time Saved4 Months

1 Month (Basic Setup)4 Months (Typical Compliance Stack)12 Months (Full Audit Readiness)

Included compliance infrastructure:

PostgreSQL FORCE RLS (160h)

WORM Immutable Audit Vault (120h)

Edge SOAR IP Firewalls (80h)

AI CISO Report & Audit Prep (80h)

Total Engineering Cost Saved

$54,400

Based on 560h dev + 80h audit prep saved.

Net Return On Investment

61,024% ROI

vs. $89 one-time license fee.

🚀 Saves 17 weeks of engineering effort. Skip the compliance backlog and launch today.

Interactive Sandbox

Test Drive the Security Sandbox

Sign in to the global administration panel to simulate attacks (XSS, IP whitelisting overrides, brute force) and see how the SOC listener triggers alerts and WORM locks down audit records.

Global Super AdminSandbox Demo Environment

Full administrative access. Manages all tenants, SOC analytics, Edge SOAR firewalls, and AI security narrative configurations.

Email Addresssuperadmin@tenantshield.dev

PasswordSuperAdmin@123

Pre-seeded credentialSign In Now

Tenant Member (Acme Corp)Sandbox Demo Environment

Isolated workspace access. Demonstrates client row-level security boundaries. Cannot view other tenant data or global SOC metrics.

Email Addressmember@acme.tenantshield.dev

PasswordMember@123

Pre-seeded credentialSign In Now

One-Time License

Secure Your SaaS Core Today

Immediate lifetime access to the complete source code, Postgres RLS schema, Edge Middleware, and offline manuals.

Starter License

For single indie founders launching a secure multi-tenant project.

$79/ lifetime one-time

Deploy to 1 production project
Complete Next.js + Supabase code
FORCE RLS schemas & 9 migrations
Edge Active defense middleware
Lifetime free updates

Purchase Starter License

Recommended

Professional License

Designed for dev agencies, freelancers, and growing multi-tenant startups.

$229/ lifetime one-time

Deploy to up to 5 production projects
Everything in Starter included
12 months priority technical support
Stripe integration walkthrough guide
Access to private security updates

Purchase Professional License

Enterprise License

Unlimited scaling, complete reseller/white-label platform privileges.

$349/ lifetime one-time

Deploy to unlimited production projects
Everything in Professional included
Lifetime priority developer support
Custom compliance documentation draft
Reseller & white-label permission

Purchase Enterprise License

Frequently Asked Questions

Overcoming Obstacles

Critical answers regarding payments, compliance audits, hosting, and implementation procedures.

No. TenantShield is a dedicated, compliance-grade security and multi-tenancy core. While standard boilerplates focus heavily on Stripe billing and simple UI, TenantShield solves the hard security and database isolation problems (FORCE RLS, immutable audit logs, Edge firewalls) that take months to get audited and approved. Stripe integrations can be added in an afternoon, but securing a multi-tenant DB is where you risk your company's survival.

Standard setup takes less than 15 minutes. It requires a Supabase instance (database + auth) and an Upstash Redis database (for Edge active defense caching). The project includes 9 numbered SQL migration files that can be run in the Supabase SQL editor. Telegram (for SOAR alerts), Cloudinary (for media uploads), and Resend (for emails) are entirely optional and can be toggled on/off in the configuration.

Standard Supabase templates use ENABLE ROW LEVEL SECURITY. While this isolates client-facing queries, it can be completely bypassed by the database owner (service_role key) or system queries. TenantShield applies FORCE ROW LEVEL SECURITY on all 14 tables, which forces policies to run even on system bypass contexts, guaranteeing that no developer mistake or service key leak can accidentally expose cross-tenant data.

No. Firebase FCM is completely deactivated on the client and bypassed on the backend by default to reduce complexity for buyers who don't need it. The push notification payloads are safely caught and logged to the console, allowing you to easily hook them into any push service (like OneSignal or Courier) or re-enable Firebase if desired.

Yes, absolutely. Under our Agency and Unlimited licenses, you are fully authorized to deploy TenantShield as the core backend framework for multiple client projects. You may not resell the source code itself as a boilerplate, but you can build SaaS products or custom enterprise portals for your clients.

The Write Once Read Many (WORM) ledger is implemented via PostgreSQL triggers. Any attempts to UPDATE or DELETE records inside the audit_logs table are intercepted at the database layer and immediately rejected with exceptions, making it structurally impossible to alter history. Furthermore, the log entries are cryptographically linked in a SHA-256 block chain and cross-verified off-database in Supabase Storage.

All licensing tiers include lifetime updates. We actively maintain TenantShield to support the latest Next.js features, Supabase SDK updates, and security best practices. You will receive email notifications or access to the repository to download new releases.

Limited Launch Pricing

Ready to Ship Securely?

Don't wait until a security audit or data leak stops your B2B SaaS startup. Get complete, compliance-grade multi-tenancy core and Edge protection in 15 minutes.

Get TenantShield Now Try Dashboard Demo

Immediate download access. Complete documentation & setup guides included.

The SaaS Boilerplate Built for When a Cross-Tenant Data Leak Would End Your Company