saas-starter

ai-template: Jump‑start Your Multi‑Tenant SaaS with FastAPI & Authx

Name: ai-template: Jump‑start Your Multi‑Tenant SaaS with FastAPI & Authx
Author: yezz123

A ready‑made Python boilerplate for founders who need a scalable multi‑tenant SaaS backend, complete with FastAPI, Authx, SQLAlchemy and Swagger UI.

From the repo · “Multi-tenant SaaS boilerplate built on FastAPI & Authx :sparkles:”

intermediate⏱ 1-2 hours💵 Free + LLM API costs

257 stars41 forksPythonGuide quality 9/10 · reviewed Oct 22Updated 10/1/2026100% free · open source

What it is

Build a scalable SaaS using the FastAPI and Authx with ai-template.

Real use case example

"A founder wants to build an automated onboarding system for their new SaaS product. They start by creating a FastAPI application with ai-template, then use Authx for user authentication and Stripe for payment processing. After deploying their application, they receive a user's payment and create a new user account with the required permissions."

Best insideClaude DesktopCursorCodex CLI

When to use it

•When you want to rapidly prototype an AI-driven SaaS application
•When you need a scalable and secure foundation for your AI startup
•When you're looking for a modern web framework to build your AI-powered product

Ready-to-paste prompt

git clone https://github.com/yezz123/ai-template.git && cd ai-template && pip install -r requirements.txt && uvicorn main:app --host 0.0.0.0 --port 8000

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/ai-template && curl -fsSL https://workflowstacks.com/api/skills/ai-template/claude-skill -o ~/.claude/skills/ai-template/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How ai-template: Jump‑start Your Multi‑Tenant SaaS with FastAPI & Authx works

Codeflow

Free to inspect

Ai-template: Jump‑start Your Multi‑Tenant SaaS with FastAPI & Authx is a medium Python project (~11k lines across 171 code files, plus 21 test files). Expect some technical setup — comfortable with a terminal, or ask a developer. Last commit a month ago, MIT license, has a test suite.

Size

Medium codebase

~11k lines · 171 code files · ~1 h to skim

Setup

Some technical setup

Comfortable with a terminal? 20–40 min. Otherwise ask a dev.

Runs on

Python

Needs API keys (.env)

Python 63%TypeScript 33%Dockerfile 1%Makefile 1%CSS 1%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
.env.example
The API keys and settings you must provide

What's in each folder

backend/Backend / API120 files

frontend/Frontend / UI64 files

admin/Folder37 files

infra/Deployment / infrastructure3 files

.github/CI / automation (GitHub Actions)8 files

READMEHas testsDocumentedCI checksMIT licenseUpdated this month

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/ai-template && curl -fsSL https://workflowstacks.com/api/skills/ai-template/claude-skill -o ~/.claude/skills/ai-template/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

yezz123

Language

Python

Do this with a working workflow

Pages we wrote and tested that put a skill like this to work — importable n8n templates, outcome guides and Claude Desktop configs.

Outcome guide

Write bulk product descriptions for your Shopify store

Export your products to a Google Sheet, run the workflow once, and it fills in a description for every product without one — in your chosen tone. Import the results back into Shopify.