Single-buyer transfer · Available now

A turnkey AI underwriting platform built and shipped — now for sale.

runSDE is a production-grade SaaS for small-business and franchise acquisition underwriting. Two financial engines, a Chrome extension, Stripe billing, an admin panel, and an automated content engine — assembled into one clean codebase. The full asset is available to a single buyer.

Diligence package available on request. NDAs supported.

What you acquire

The full asset — code, brand, infrastructure, and growth tooling.

Transferred as a complete bundle. No fragments, no dependencies left behind, no recurring license obligations.

Full source code

Monorepo with Python FastAPI backend, Next.js 14 frontend, Chrome Manifest V3 extension, admin panel, and complete test suite. MIT-clean — no copyleft dependencies.

Two production engines

Pure-Python financial engines for cash-flow business underwriting (SBA 7(a), DSCR, scenarios, market benchmarks) and franchise unit economics (Item 19, ramp, breakeven). Deterministic, fully tested, no DB or framework coupling.

Brand, domain, and marketing assets

runsde.com domain, full marketing site copy, blog content library, sample analyses, sitemap, OG/Twitter cards, lead-gen funnel.

Customer-facing Chrome extension

MV3 extension published on the Chrome Web Store. One-click capture from 14+ acquisition marketplaces including BizBuySell, BizQuest, Flippa, LoopNet, Franchise Gator, and Sunbelt.

Billing + entitlements infrastructure

Stripe-integrated checkout, four pricing tiers, webhook handling, customer portal, plan-gated feature access, monthly + annual cadence.

Internal operator tooling

Admin panel with user management, audit log, GA4 analytics, email campaign builder, deal-alerts engine, waitlist, blog CMS with AI generator and auto-posting scheduler.

Documentation + runbooks

Deployment checklist, security operations, observability guide, analytics data moat, content plan, directory-submission kit. Two years of production learnings codified.

By the numbers

A real codebase — not a prototype.

Production code, test discipline, and an architecture that has already survived two years of real-world deal volume.

120+
Python modules
85+
TypeScript components
270+
Test functions
628
Pytest cases collected
20+
Database tables
14+
Marketplace integrations
9
Backend subdomains (auth, deals, billing, admin, …)
4
Pricing tiers wired to Stripe

Tech stack

Modern, boring, durable.

No exotic infrastructure. Anyone with a senior full-stack engineer can own and extend this on day one.

Backend
Python 3.11 · FastAPI · SQLModel · SQLAlchemy · Pydantic v2 · uvicorn
Frontend
Next.js 14 (App Router) · React 18 · TypeScript 5 · Tailwind CSS · TanStack Query
Data
PostgreSQL (Render-managed) · Redis-compatible shared cache layer
AI
OpenAI GPT-4 family · DALL-E 3 · provider-agnostic LLM abstraction with retry + L2 caching
Billing
Stripe Checkout · Customer Portal · webhook handlers · plan/seat entitlements
Email
Resend (transactional + marketing) · template library · campaign scheduler
Observability
Sentry · structured JSON logging · request-ID middleware · custom rate-limit telemetry
Extension
Chrome Manifest V3 · 14+ content scripts · background service worker · token-based pairing
Deployment
Render (backend) · Vercel (frontend) · static asset CDN · ephemeral + persistent disk fallbacks

Domain depth

Two financial engines. Not chat wrappers.

Underwriting logic lives in deterministic Python modules — every gate, ratio, and suppression rule is testable and reviewable. AI is used where it earns its keep (parsing, memo generation, image creation), not as a crutch over the financial math.

SBA 7(a) structure engine

  • 80/10/10 capital stack with configurable seller-note + standby tranches
  • SBA eligibility gate (no-US-tax-returns / unavailable flags suppress lender language)
  • Two-track status: math-path vs. underwriting-path so sensitivity stays runnable
  • Real-estate carve-outs, market-rent overrides, effective-multiple math

DSCR + scenario modeling

  • Pre- and post-owner-comp cash-flow triple per scenario
  • Bear / base / bull with revenue elasticity tied to fixed vs. variable cost mix
  • Cash-on-cash, payback period, owner-comp readiness gating
  • Sanity checks + credibility gates that suppress fake metrics instead of fabricating them

Diligence reconciliation

  • Tax-return + bank-statement + lease attestation tracking
  • Customer concentration scoring with memo-ready flags
  • Transferability and owner-dependence assessment
  • PDF lender package export with cover page, deal summary, and full memo

Franchise unit economics

  • FDD parsing pipeline (PDF → structured Item 5/7/19 fields)
  • Mature-year P&L projection with royalty, marketing, COGS, labor, rent
  • Ramp-curve revenue modeling and breakeven month calculation
  • Item 19 quartile benchmarking with auto-generated investment memo

Built-in growth machinery

You're not buying a tool — you're buying a business that markets itself.

Auto-blog poster

End-to-end automation: weighted topic seeds across 14 verticals + concepts + funnel, headline-style rotation, Claude/GPT JSON article generation, DALL-E cover images with disk + base64 fallback, and an async scheduler that fires 4–12 posts a day inside a configurable UTC window with per-slot jitter and min-gap enforcement.

Email campaign engine

Templated transactional + marketing flows on Resend. Audience segmentation, scheduled sends, per-send logging, and user-activity event tracking for cohort retargeting.

Deal alerts + watchlists

Per-user alert rules over the curated listing feed. Push-style notifications on price changes, new listings matching a buy-box, and inactivity nudges.

Lead-gen and content moat

Buying-guide gated download, valuation-tool funnel, sample-underwrite preview, market-intelligence benchmark library — all SEO-targeted and connected to the same auth and billing surface.

Who this is for

Best fit for buyers with existing distribution.

The engineering and design work is largely done. The leverage is in putting this in front of an audience you already reach.

M&A or SMB search platforms

Bolt-on a production underwriting engine and Chrome capture to an existing acquisition workflow. Skip 18 months of build.

SBA lenders and brokers

Offer borrowers a self-service pre-qual tool branded under your name. Memo + PDF package generation included.

Search funds and holdcos

Use the engine for in-house screening; rebrand the buyer-facing app for internal team workflow.

AI/fintech operators

Acquire a clean codebase with real domain depth — modeling, parsing, scenario math — and re-aim it at adjacent verticals (real estate, franchise resale, SaaS roll-ups).

How to engage

Straightforward, no broker layer.

  1. 1

    Inbound inquiry

    Email support@ai-reda.com with a one-paragraph intro: who you are, what you'd do with the asset, and your timeline.

  2. 2

    NDA + diligence package

    Mutual NDA followed by a structured data room: repo access, infrastructure overview, financials, traffic + analytics history, customer data summary, and a live walkthrough.

  3. 3

    LOI

    Non-binding LOI with purchase price, structure, and expected close timeline. Cash, structured note, or earnout — flexible.

  4. 4

    Asset transfer

    Source code (GitHub), domain (runsde.com), Chrome Web Store listing, Stripe account assets, Render + Vercel projects, brand assets, customer list (with consent). 30 days of seller transition support included.

Inquire about acquiring runSDE.

Send a short note. We respond personally to every credible inquiry — usually within one business day.