Built by a security engineer, not a growth hacker
SecureLaunch is the secure-by-default FastAPI starter kit: hardened auth (JWT + rotation + 2FA + argon2id), OWASP headers on every response, and GDPR pre-wired — the only kit that actually ships it.
FastAPI · SQLAlchemy 2 async · PostgreSQL · Stripe · Docker + Caddy. From zero to deployed in ~30 min.
Measured on v1.0.0 — verifiable in the repo, not promises.
§1What you save
You're not paying for code you could have written. You're paying for the weeks spent hardening auth the right way, not getting token rotation wrong, and not discovering a security hole in production. Here is the breakdown, module by module.
Based on a €500/day rate — indicative ranges.
Hardened auth — 15-min JWT + rotating refresh, reuse detection, Argon2id, progressive lockout, encrypted TOTP
Signed + idempotent Stripe webhooks (claim-first), customer portal
GDPR — Art. 20 export, Art. 17 erasure, consent registry, FR/EN legal docs
OWASP baseline — CSP/HSTS… headers, rate-limiting, strict CORS, CSRF, PII-free logs
Hardened deployment — non-root Docker, Caddy auto-TLS, ruff/pytest/pip-audit/gitleaks CI
Total if you build it yourself
Total if you build it yourself
≈ €15,000–22,500
SecureLaunch
€99
lifetime license
In reality, most developers never spend those weeks: they skip security. From day one, this kit neutralizes the 4 classes of flaws that keep showing up in early-stage SaaS audits — refresh-token theft, account enumeration, brute force, replayable Stripe webhooks.
These figures are estimates meant to convey the order of magnitude of work avoided. No guarantee of outcome or automatic compliance is promised: security and compliance also depend on how you operate your application.
§2The kit
Six modules — each tested, documented and put through a written adversarial security review.
JWT access + opaque refresh tokens with rotation and theft detection (whole-family revocation), argon2id hashing, single-use email reset & verification, progressive brute-force lockout, optional TOTP 2FA (secret encrypted at rest).
Data export (portability), right to erasure (with audit-log anonymization), append-only consent registry, template FR + EN privacy policy & terms, consent banner.
Checkout for subscriptions and one-time payments, signed and idempotent webhooks (claim-first, race-safe), customer portal, payment-failure handling.
PostgreSQL + SQLAlchemy 2 async + Alembic. Ready-made User / Subscription / Payment / AuditLog / Consent models, migrations and dev seeds.
OWASP headers on every response, rate-limiting, restrictive CORS, CSRF double-submit, structured logs with no personal data.
Hardened multi-stage Dockerfile (non-root, slim), docker-compose with Caddy (auto TLS), full GitHub Actions CI.
CI pipeline
ruffpytest · cov 90%pip-auditgitleaks
Also included: 73 automated tests (90% coverage, > 95% on auth), a written adversarial security review per module, an independent final OWASP ASVS Level 1 audit (0 remaining Critical / High findings), and a "zero to deployed in 30 minutes" guide.
§3Under the hood
From TLS termination down to PostgreSQL: every layer of the stack ships with its defense wired in by default, not bolted on afterwards.
AttackMITM, TLS downgrade
DefenseAutomatic TLS + HSTS: the plaintext connection simply does not exist.
AttackXSS, flood, clickjacking
DefenseOWASP headers on every response (CSP, X-Frame-Options…), global + per-route rate-limiting, no-wildcard CORS, double-submit CSRF.
AttackCredential stuffing, token theft
DefenseArgon2id, progressive lockout, rotating refresh tokens + reuse detection with whole-family revocation, TOTP encrypted at rest.
AttackForged webhooks, replay
DefenseVerified signature + claim-first idempotency: an event only pays once.
AttackSQL injection, data leaks
DefenseParameterized queries via the ORM, Alembic migrations, structured logs with no PII.
§4Independent audit — OWASP ASVS L1
Every module went through a written adversarial security review. Then an independent final audit re-verified the actual code line by line, mapped to OWASP ASVS Level 1 — trusting none of the previous reviews.
Residual findings (Medium / Low) are defense-in-depth items and are publicly documented along with the conditions required to exploit them. In security, credibility beats a polished pitch.
Read the full audit4 High findings caught during development — fixed and re-verified:
Finding flaws during development is not a failure: it is the point of the method. Hiding them would be.
| Severity | Remaining findings |
|---|---|
| Critical | 0 |
| High | 0 |
| Medium | 4 |
| Low | 5 |
| Info | 2 |
§5Who builds this
SecureLaunch is built in public: every module is developed, then attacked in writing — and everything is published, including what was found.
One adversarial review per module
Every module went through a documented adversarial security review: the code is attacked the way an adversary would, and the result is written down in full.
The findings are published — nothing hidden
Including the 4 High findings caught during development, fixed and then re-verified. Keeping quiet would have been more comfortable; it is not the method.
An independent product
No marketing team behind this: the code and the audit are the pitch. What this page claims, the repository proves.
§6GDPR
The moment you sell in Europe, GDPR is not optional. Every boilerplate ignores it — SecureLaunch ships it wired, tested and documented.
Full portability: an authenticated endpoint returns all of the user’s data as JSON.
Cascading account deletion with audit-log anonymization, re-authentication required.
Append-only: every consent is timestamped and kept, never modified or deleted.
Privacy policy and terms of service in French and English, plus a consent banner.
200 OK - application/json
Templates included
The legal documents provided are templates to adapt to your business. They do not constitute legal advice.
§7Comparison
A factual comparison. The leading JS boilerplates (ShipFast-style and clones) are excellent products for moving fast on the JavaScript side — they simply target a different audience and different priorities. Here are the areas where the choice genuinely differs.
| Criteria | SecureLaunch | Typical JS/Next.js boilerplates |
|---|---|---|
| Language / stack | Python / FastAPI (async) | JavaScript / Next.js |
| Security by default | OWASP headers, rate-limit, CSRF, CORS, security logs — out of the box | Varies; often left to the integrator |
| GDPR pre-wired | Export + erasure + consents + FR/EN docs | Rarely provided |
| 2FA | TOTP included (secret encrypted at rest) | Depends on the external auth provider |
| Tests & audit | 73 tests, 90% coverage, ASVS L1 audit | Rarely highlighted / documented |
| Pricing model | Lifetime license, single buyer | Often lifetime license too |
Third-party product features change and vary from kit to kit: always check the exact offer at the time of your purchase. This table describes general tendencies, not a specific named competitor.
§8In all honesty
§9Pricing
Pay once. Use the kit in all your projects, forever.
Early-adopter price
Lifetime license · single buyer · unlimited use in your projects
€99
then €149
Launch price reserved for the first early-adopter licenses, then €149 — no fake countdown.
The launch price is a real, limited discount — not fake urgency: it will genuinely go up.
Reselling and redistribution of the kit are prohibited.
FAQ
Because a huge number of independent developers think and ship in Python (data, AI, back-end, scripts), and the serious-boilerplate ecosystem there is far thinner than in JS. FastAPI brings native async, strict validation via Pydantic 2 and generated OpenAPI. SecureLaunch targets that audience, with security as a first-class priority.
The value isn't the raw code but the hardening time: flawless token rotation, anti-enumeration, idempotent webhooks, GDPR chaining, written security reviews. The commercial license funds that work and its maintenance. You get the full source code, freely modifiable within your projects.
A lifetime, single-buyer commercial license: unlimited use in your own projects (client work included). Only reselling or redistributing the kit as such is prohibited. The legal documents provided are templates to adapt and do not constitute legal advice.
You pull new versions via git pull then rebuild; in Docker, Alembic migrations are re-applied on startup. Dependencies are pinned (uv.lock) and auditable with pip-audit. Security fixes are our priority.
The kit is designed to be self-sufficient: a "30 min" guide, one guide per module, deployment guides (VPS, Scaleway, Railway/Render) and a detailed technical FAQ. For purchase or license questions, email support@securelaunch.dev.
As a digital product delivered immediately with full source-code access, refund terms are spelled out at checkout. Before buying, browse the public docs and the detailed kit contents via documentation to remove any doubt.
Start from a hardened, tested FastAPI base designed for the European market. Focus on your product, not on security holes.