Webhooks Done Right (for Stripe)
Stripe webhook endpoints that verify signatures on the raw body, process each event once, and return the right status codes. Reference code for Node/TypeScript and Python.
US$19
Tested AI skills and automation packs, built for Claude Code, Cursor and n8n.
Each product ships with runnable reference code, an automated test suite and a TEST-REPORT.md that says plainly what was tested and what wasn't.
See the products Read the test reports
Claude CodeCursorn8nPrices in US$30-day refunds
Products
API Integrator for QuickBooks Online
A dependency-free TypeScript client and instructions for the QuickBooks Online Accounting API: OAuth 2.0, token refresh, customers, invoices and error handling.
US$24
Subscription Billing Kit (for Stripe)
A webhook-driven access model for SaaS subscriptions on Stripe: Checkout, Customer Portal, all 8 subscription statuses, trials, failed payments and Basil API changes.
US$19
Failed Payment Dunning (for Stripe), n8n pack
An importable n8n workflow for failed Stripe subscription payments: signature check, duplicate skip, Slack alert, optional customer email and recovered alerts.
US$34
Bundles
Builder Bundle
All four SkillHammer products: Webhooks Done Right (for Stripe), API Integrator for QuickBooks Online, Subscription Billing Kit (for Stripe) and the Failed Payment Dunning n8n pack.
US$69 (US$96 if bought separately)
Payments Starter Bundle
Webhooks Done Right (for Stripe) and Subscription Billing Kit (for Stripe), together.
US$29 (US$38 if bought separately)
What "tested" means here
- Every product includes automated tests that passed when last run from a clean copy of the download.
- Each TEST-REPORT.md lists what was not tested, for example live Stripe deliveries, a real QuickBooks sandbox company, or real Slack and email.
- Every download includes LICENSE.txt (single-user, commercial use) and REFUND.txt.
Hammer out skills that actually work.
Read exactly what was run, and what wasn't, in the test reports.