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Articles 130,646Blog Posts 135,560Tech Tutorials 33,834Research Papers 25,428News 18,548
⚡ AI Lessons
Dev.to · arun rajkumar
1w ago
I Got Obsessed With Killing Scrum. So I Built a World Out of 12 AI Agents.
This is a submission for Weekend Challenge: Passion Edition What I Built I built...
Dev.to · arun rajkumar
⚡ AI Lesson
2w ago
Your Types Lie the Moment They Cross a Network Hop
A TypeScript type is a promise. And like any promise, it only holds while someone is around to keep...
Dev.to · arun rajkumar
2w ago
We're Still Designing for Eyes. The Thing Reading Our Apps Now Doesn't Have Any.
I spent about an hour of WWDC watching Apple tell developers to make their apps more...
Dev.to · arun rajkumar
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
I Replaced Scrum, Jira, and Our Wiki With 12 AI Agents on a Mac Mini
A survey last week put it at 54%. More than half the code shipped today is AI-generated. In my own...
Dev.to · arun rajkumar
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
AI Agents Are Great at 80% of Our Code. The Other 20% Is Why We Still Need Seniors.
We let AI agents loose on a payment platform. They crushed the boring stuff. Then they silently broke...
Dev.to · arun rajkumar
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
Your Payment API Wasn't Built for AI Agents. Open Banking Might Be the Fix.
Stripe just shipped an Agentic Commerce Suite. PayPal launched Agent Ready. Visa predicts millions of...
Dev.to · arun rajkumar
2mo ago
FCA Just Rewrote the Open Banking Playbook for 2026. Here's What UK Payment Developers Actually Need to Know
I'm the CTO of an FCA-authorised Payment Institution. I spend most of my week either writing payments...
Dev.to · arun rajkumar
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
Payment Webhooks Will Lie To You. Here's How We Built Ones That Don't (in NestJS)
A payment webhook fires once. You miss it. The customer thinks they paid. Your dashboard says they...
Dev.to · arun rajkumar
🤖 AI Agents & Automation
⚡ AI Lesson
2mo ago
I Asked Three Coding Agents to Build My Son's Cricket Coach a Website. The Result Wasn't Decided by the Model — It Was Decided by Taste.
TL;DR — Codex GPT-5.5, Claude Opus 4.7, Gemini 3.1 Pro. Same prompt. Same 18 photos. Five total...
Dev.to · arun rajkumar
2mo ago
Your Agent Doesn't Need a Better Model — It Needs a Context Layer
We stopped trying to find a better model. We built a better context surface. Different problem....
Dev.to · arun rajkumar
📣 Digital Marketing & Growth
⚡ AI Lesson
3mo ago
What Developers Get Wrong About PSD2 and Payment Initiation
I've spent UK FinTech Week (April 20–24) reading developer threads about open banking. Same...
Dev.to · arun rajkumar
⚡ AI Lesson
3mo ago
We Built an Open-Source Coding Exam Platform Because Every Vendor Let Us Down
Every year, our team visits engineering colleges across India to hire freshers. The first round is...
Dev.to · arun rajkumar
🤖 AI Agents & Automation
⚡ AI Lesson
3mo ago
Open Banking Was Built for the Wrong Future — and That's Why It's Perfect for AI Agents
Visa announced infrastructure for AI agents to make payments without asking you first. GoCardless...
Dev.to · arun rajkumar
3mo ago
How Open Banking APIs Actually Work — A Developer's Guide
You've integrated Stripe. You've wired up PayPal. You've copy-pasted card tokenisation code from...
Dev.to · arun rajkumar
3mo ago
Why Open Banking Is Eating Card Payments in the UK (And the Numbers Prove It)
I've been building payment infrastructure for the last few years. Cards were the default. Visa,...
Dev.to · arun rajkumar
⚡ AI Lesson
3mo ago
How We Built Atoa's Payment Infrastructure with 15 NestJS Microservices (And What Took the Most Figuring Out)
Open banking in the UK just crossed 24 billion successful API calls in 2025. Payment initiation grew...
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