Multi-Tenant Stripe Connect Payments in a Go SaaS Platform
The problem We build Verify365, a white-label SaaS platform used by several law firms, each under its own brand. Every partner firm needs payments to …
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How to Accept Crypto Payments on WooCommerce (Without a Custodial Processor)
You built your WooCommerce store. You've got products, a checkout flow, and customers who want to pay in crypto. The question is: which payment gatewa…
Next.js Stripe Billing Integration for SaaS (Step-by-Step Guide)
Creating a B2B SaaS application involves a number of challenges. One of the challenges facing entrepreneurs and businesses is the time required to dev…
Stripe webhooks can work and your app access can still be wrong
Most Stripe billing bugs get described as webhook bugs. Did the event arrive? Did the signature verify? Did the handler return 200 ? Is the handler id…
Stripe-connect-reckon – a read-only monitor for Stripe Connect balance risk
I worked on a marketplace where a connected account went negative, Stripe suspended its payouts, and refunds silently queued as pending — no error, no…
Stripe vs Paddle vs Lemon Squeezy for Indie Developers
Originally published on the Keylight blog . If you are an indie developer about to charge for an app, you have three names in front of you: Stripe, Pa…
How I add Polar (Merchant of Record) + Stripe to any Next.js app in 10 minutes — without an SDK
If you're a solo dev outside the US, "just add Stripe" is rarely just. Stripe doesn't onboard sellers directly in a lot of countries, so you reach for…
Clawing back affiliate commissions when a customer refunds: design the ledger first
You pay an affiliate 30% for referring a customer. Three weeks later that customer refunds. Now the affiliate is holding a commission on a sale that n…
Stop refunding payments you should never have charged
I once shipped a checkout that charged the card the instant the customer hit pay, then ran the order validation afterward. Stock check, address valida…
Every Stripe decline code, what it actually means, and whether retrying will help
When a card payment fails in Stripe, you get a short string back — insufficient_funds , do_not_honor , authentication_required . Most teams glance at …
Paddle is not a serious service
I build serious SaaS with my +20yr XP web & product. For my last SaaS I implemented Paddle as payment service because their baseline looked cool :…
I Built a Production-Ready Node.js SaaS Boilerplate So You Don't Have To
Every time I started a new SaaS project, I spent the first 3 days building the same things. Auth. Billing. Database setup. Deployment config. Every. S…
How to build a credit system for a Next.js AI app (Stripe + Supabase)
If you're building an AI app (image generation, transcription, an agent, anything that calls a model) you've probably realized a flat "$10/month" does…
Stripe Webhook Idempotency in FastAPI: Handling Duplicate Events Without Double-Charging SaaS Customers
Stripe Webhook Idempotency in FastAPI: Handling Duplicate Events Without Double-Charging SaaS Customers I learned this lesson the hard way. Three mont…
Stripe and Friendly Fraud: What the HN Crowd Got Right — and What Progenix Does About It
If you were on Hacker News yesterday, you saw it. A detailed post-mortem from a merchant who lost thousands of dollars to friendly fraud — customers d…
How I wired Stripe subscriptions to Supabase in Next.js 15 (the parts tutorials skip)
Every SaaS needs the same foundation: auth, payments, a database, protected routes. I've built this from scratch too many times. This post covers the …
I got tired of clicking through the Stripe dashboard, so I built a CLI
It was a Tuesday night, and I was renaming a price in the Stripe dashboard. A price I had already renamed in our code three weeks earlier. The deploym…
From Years to Hours
It's not a brag for me to say "I've been visualizing infrastructure since 2018" - it's the actual truth. That was the year I joined a lovely Portland-…
Why your Stripe webhook might be silently dropping events (and how to find out)
If you process Stripe subscriptions and have never opened Workbench → Webhooks → Event deliveries (or the older Developers → Webhooks → Attempts view)…
Why we treat credits and wallets as first-class billing primitives
tl;dr: Most billing systems model a credit wallet as a prepaid cash balance. That works at day zero. It breaks the moment your product has multiple ty…
The MCP Economy: How AI Agents Will Pay Each Other
MCP servers let AI agents use tools. But the real unlock is agents paying agents. Here's the vision behind AgentPay: Today: Humans buy subscriptions f…
How to Monetize an MCP Server — Payment Links, Guardrails, and Scoped Tokens
MCP (Model Context Protocol) servers let AI agents use tools. But how do you charge for them? Here's the stack I use across 61 MCP servers: The Paymen…
Building a Payment Processor: The Final One Percent
I had idempotency, a message queue, and retries. I thought I was finally building something production-ready. Then I started thinking about the "in-be…
AI usage billing gets complicated fast — here's what breaks first
At first, AI billing looks simple. A user makes a request. You charge them. Done… right? Not really. Once your AI product starts getting real traffic,…
An agent can now buy a domain. The trust gap stopped being a slide.
On April 30, Cloudflare and Stripe launched Projects . An agent can now create a Cloudflare account, register a domain, and deploy a Worker, paying wi…
Stripe Webhook Was Silently Failing for 5 Days: The 4xx Retry Trap and the Beginning-of-Month Time Bomb
TL;DR 21 invoice.paid webhooks failed for 5 straight days in production. We only noticed because Stripe sent a "we'll auto-disable this endpoint by 5/…
5 best usage-based billing platforms for vibe coders
The best usage-based billing platforms for vibe coders include Credyt for real-time AI billing with prompt-based setup inside Cursor, Lovable, Bolt, a…
Localize Stripe Prices to the Visitor's Currency in 25 Lines
Stripe is opinionated: a Price object has one currency. If your product is priced at $79 USD, that's what Stripe charges. But for conversion optimizat…
Building a Payment Processor: My First Attempt Was a Disaster
I wanted to figure out how people build payment systems without losing everyone's money. It turns out, my first attempt was a great way to lose a lot …
The AI "Intelligence-Authority" Gap: Why Your Agents Need a Deterministic Handbrake
We are currently witnessing a massive shift in AI development. We’ve moved past the "Chatbot" era and into the era of Agentic Systems—AI that doesn’t …