Funnel & Revenue
Give paying customers access.
Grant access when Stripe confirms payment. If a refund, dispute, or fraud alert comes in, access pauses automatically until you review it.
Ready-made mods for your favorite coding agent
Get the hard part
working right.
Your coding agent can spin up a prototype in an afternoon. Making it survive real customers—Stripe webhooks, refunds, double-bookings, and dropped mid-checkout sessions—is the part that eats weeks.
$99 for your first mod, $75 for every mod after. Full source code, agent setup prompts, and automated verification tests included.
Stop prompting your agent to reinvent payments, bookings, team seats, and publishing from a blank file. Each Helpful Mod gives Cursor, Claude, or Codex production-tested source code, step-by-step integration prompts, and automated checks so you can ship today.
Full, modifiable source code·Ready-to-run agent prompts·Zero SaaS lock-in
INCLUDED IN EVERY MOD
Funnel &
SOURCE + SETUPREADY FOR YOUR AGENT
Funnel &
Revenue
CheckoutAccessHistoryRecovery
FULL SOURCE + AGENT PROMPTS
Your coding agentExample
When should a customer get access?
After their payment is confirmed.
I’ll connect the Stripe checks, access rules and recovery steps.
Built-in prompts guide your coding agent.
SHIP FASTER
Code for the cases
a demo can miss.
Your agent will build the version that works when everything goes right. These mods handle what happens when it doesn't.
Booking & Calendar
Reserve the slot while they pay.
Lock in appointment slots while customers pay their deposit and auto-release them if they walk away. Google Calendar busy-time checks, event updates, and reminders come wired in—and late payments get flagged instead of causing a double-booking.
Paid Membership & Teams
Keep team access in sync.
Add B2B team workspaces, role permissions, and invite links that automatically enforce paid Stripe seat limits.
Workflow Automation
Pick up interrupted work.
Every step saves its progress, so a failed job picks up right where it stopped. If an external API times out, the workflow pauses for your review instead of blindly repeating a payment or email.
WHY HELPFUL MODS
Why not just ask Cursor to build it—or buy a $299 boilerplate?
AI agents can nail the happy path. The edge cases are what cost you money.
Ask an LLM to build Stripe billing or appointment booking from scratch and you can get a great-looking demo. Then a webhook fires twice, a customer refunds half an order, or two users book the 2:00 PM slot at the same second. Every mod is engineered and tested against those production failure modes, so your coding agent starts with the hard part already done.
Keep your app. Add the capability you need.
A SaaS boilerplate gives you a starting stack for a new app. Helpful Mods give you standalone services to connect to the app you already have. Keep your frontend and backend, choose the mod you need, and let your agent follow the integration guide to connect it.
WHAT’S INSIDE THE DOWNLOAD
Built like internal infrastructure,
documented for your coding agent.
Every mod includes complete, unminified TypeScript and Node.js source code. When you unzip a mod, your coding agent gets:
Source code & SQL
Typed implementation code and database setup your agent can inspect, change, and connect to your project.
README.md & setup/SKILL.md
Step-by-step setup instructions for Claude Code, Cursor, Codex, Windsurf, or your coding agent of choice.
Agent help & error reference
setup/AGENT_HELP.md and setup/error-reference.json give your agent answers and recovery steps for common setup problems.
Verification tests
Checks for the mod’s workflow, database rules, and recovery behavior, so your agent can test the connection before you go live.
Your agent can take it from here
Stop spending weeks
debugging the same plumbing.
For $99, you get the complete source code, an agent setup prompt, an integration guide, and an automated test suite. Just point your coding agent at the folder—it reads the architecture, wires the mod into your app, and runs the verification checks for you.
Want to see a mod in action? Mallow—the chat widget in the corner—runs on our $99 Website Chat mod. Ask it anything.
Built with clean TypeScript, Node.js, and PostgreSQL (or SQLite for Website Chat). Each mod runs as a lightweight standalone service alongside your app, so you can keep your existing stack. Your agent connects it using the included integration guide, and each product page lists the hosting requirements upfront.
How to install a purchased mod- 1
Find your mod
See what it does, what it needs, and how it fits your project.
- 2
Give it to your agent
The included prompt points your agent to the source, setup guide, and answers to common problems.
- 3
Connect and check
Your agent connects your accounts and your app, then runs the built-in test suite to put the full workflow through its paces.
Pay once, use forever
Buy the mod once.
Keep building.
$99 for your first mod, and $75 for every mod after that—in the same cart or on any future order. Each license covers one commercial product with unlimited users and no revenue cap. Modify and use the downloaded source code in your product forever, with 30 days of setup support and a full year of bug and security updates included. Future major versions are optional.
No subscriptions or recurring fees from Helpful Mods. You’ll see your total before you pay, and you use your own hosting and Stripe or OpenAI accounts directly.
Find the right mod