Stop Using Random Card Numbers in Your Checkout Tests (Use These Instead)
When you build a checkout form, you need card numbers to test it. The usual shortcut is to type 4111 1111 1111 1111 or make up some digits. That wor…
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Building a marketplace for Discord bots and templates: our Stripe Connect onboarding, step by step
We're building Botnexio, a marketplace where creators sell Discord bots, GPTs, vibe-coding templates and prompt packs. This is our thing, so treat i…
Before You Post a Launch-Day Promo Code in Stripe, Set These 5 Limits
Launch day is when most tiny SaaS founders make their first public discount code. You open Stripe, make a coupon, type LAUNCH50 , paste it into the…
How to Fix "Stripe Webhook Signature Verification Failed" in Laravel
If your Laravel application suddenly throws "Stripe webhook signature verification failed" — the Stripe PHP SDK's SignatureVerificationException , u…
The 4 Stripe webhook mistakes that silently break paid signups (and how to fix them in Next.js)
Most "Stripe checkout works locally but customers don't get access" bugs come down to the webhook handler. Here are the four I keep seeing: 1. Parsi…
Stripe is the seller of record in 27 countries and nowhere else, and one rejected field must never block a sale
A one-person UK company selling a subscription to someone in Germany owes German VAT on that sale from the first euro. There is no threshold to hide…
Stripe webhook signature verification failed: the 5 causes and fixes
If you've integrated Stripe webhooks, you've probably seen this error: StripeSignatureVerificationError: No signatures found matching the expected s…
A contributor reward is a Stripe coupon and not a balance credit, because a balance credit does not clear the VAT
Munchable maintains its own product database, and the fastest way it grows is people scanning things we do not have yet. Point the camera at an ingr…
My Stripe idempotency key was correct. It just stopped working after 24 hours.
I added a reward feature that pays out through Stripe's customer balance, and I did what every payments guide tells you to do: I passed an idempoten…
We sold a plan that didn't work
We launched a 4.90 EUR/month plan. The annual option would have charged 58.80 EUR every month, the plan granted no entitlements, and the worker igno…
Prices round up, discounts round down, and one package decides both
Munchable Premium is £10 a month. The price list has 24 currencies in it, and the rule the whole thing is built around is that the number you read i…
Your Trading Bot Assumes the Exchange Will Exist Tomorrow. BitMEX and CoinEx Just Proved Otherwise
In September 2026, two exchanges entered wind-down within days of each other. BitMEX stopped trading on September 23. CoinEx announced on September…
Stripe webhooks in Go: the complete idempotent handler, line by line
Every Stripe tutorial in Go shows the same forty lines: read the body, call ConstructEvent , switch on the type, update the database. Those forty li…
Reimporting Stripe's new OpenAPI spec into Mockoon left 559 routes on the old API
Disclosure: I work on Mockzilla, which competes with Mockoon. Everything below was run on one laptop, and there is a link to the longer comparison a…
Your Webhook Endpoint is a Tiny Distributed System
If you want the Rails implementation version of this, Webhooks in Rails goes deeper on verification, durable receipt, idempotency, retries, jobs, te…
Your payout CSV was already broken before validation ran
A partner sent their monthly contractor file on the first, the way they had for two years. 1,847 rows. Our importer validated every one of them and…
Five Code Paths Write the Same Subscription Row. On Purpose.
I run a small SaaS called VoiceDash . It gives voice AI agencies a white label portal they can hand to their own clients. Next.js on Vercel, Postgre…
How a Timeout Can Charge Your Customer Twice (And How to Stop It in Laravel)
A customer attempts a payment. The request safely reaches your server, and the transaction is performed successfully. Then, while the response is be…
Stripe Connect refunds: the two flags that silently cost platforms
Problem When a Stripe Connect platform refunds a charge, the platform often assumes that the original transfer and the application fee are automatic…
Credits, plans and quotas in Laravel with Larameter
If your app sells an allowance, a number of credits a month, or a number of documents, or a number of anything. Whatever it is, you end up writing a…
What a lost dispute actually costs a Connect platform
Refunds get the attention. Disputes are worse, and the reason is structural rather than a matter of degree. On a refund you at least have a paramete…
The Stripe Connect refund that only costs the platform
There is a class of bug in Stripe Connect that never throws, never logs, and never fails a webhook. The refund succeeds. The customer is made whole.…
Stripe Shared Payment Tokens: five wire shapes I only found by shipping
Five response shapes from Stripe's Shared Payment Tokens preview API that I didn't find documented, captured from real test-mode responses. Stripe's…
Stripe Says Paid, WooCommerce Says Pending: A Safe Reconciliation Checklist
A customer completes checkout. Stripe shows a successful payment, but the WooCommerce order is still Pending payment , On hold , or Failed . The tem…
Why I built a full PayPal checkout on Cloudflare Workers instead of using Stripe
When I migrated a 4-year-old e-commerce store to Webround, the client had one non-negotiable requirement: PayPal had to work. Their customers were u…
Stripe Just Bought OpenRouter for $7B+ — and That Is the Most Important AI Story of the Week
Stripe Just Bought OpenRouter for $7B+ — and That's the Most Important AI Story of the Week On August 16, Bloomberg reported that Stripe has finaliz…
I Built a Production E-commerce System — Here’s What I Learned
E-commerce projects at first glance look simple — search products, add them to a cart, checkout, complete the payment, done. I thought the same. I r…
Talks to sell PayPal to Stripe and Advent are heating up
PayPal is still reportedly negotiating a potential sale to Stripe and private equity firm Advent, as the fintech firm's new CEO attempts to turn the…
I type-check AI-generated SDK code against the real package. Claude refused a third of my Stripe tasks.
I build a small tool called SDKProof. It measures whether AI coding agents write a library's current API or an older one they remember. A model solv…
Architecting Bulletproof SaaS Billing with Stripe: Webhooks, Proration, and Usage Metrics
Architecting Bulletproof SaaS Billing with Stripe Building a SaaS product is a marathon, but billing is where developers often trip over their own s…