DEV Community • 2026-04-29 14:00

I built a memory API that AI agents can pay for

An LLM just paid me $0.001 to remember something. I shipped a paid memory API at bmdpat.com/memory. AI agents store, recall, and delete memory by hitting four HTTP endpoints. Each call costs a tenth of a cent in USDC on Base. No signup. No API key. No account form. The flow Agent calls POST /api/memory/store with no auth. Server returns 402 Payment Required and quotes the price (1000...

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DEV Community • 2026-04-29 14:00

Why API keys break for autonomous AI agents

Stripe doesn't ship to LLMs. If you have tried to give an agent autonomous access to APIs, you already know the wall. Each vendor wants: An account A credit card An API key from a dashboard A billing email A captcha you can't pass Every step assumes a human is at the door. That works for a person writing scripts on a Tuesday afternoon. It does not work for an agent loop running unattended for...

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DEV Community • 2026-04-29 14:00

PostgreSQL Subquery and CTE Optimization

Every SELECT in PostgreSQL is made of smaller SELECTs, even when it doesn't look that way. WHERE col IN (SELECT ...), WHERE EXISTS (SELECT ...), (SELECT count(*) FROM ... WHERE ...) in the column list, WITH x AS (SELECT ...) — these look syntactically different but all get rewritten into plan nodes at plan time. Which plan node the planner chooses determines whether your query runs in three millis...

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DEV Community • 2026-04-29 14:00

How to Pass Data Between Controllers in ASP.NET Core

TempData, Session, RouteData, RedirectToAction with params, service-layer approach (the right way) It's a common scenario: one controller handles a form submission, and you need to pass a message or result to another controller's action after a redirect. But passing data between controllers is trickier than it looks — and most approaches have hidden tradeoffs. Why You Can't Just U...

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DEV Community • 2026-04-29 14:00

From HTML Table to SQL INSERT Statements in One Click

You've found data on a website. You need it in your database. The workflow usually involves: export to CSV, import into SQL tool, deal with type mismatches, fix encoding issues. What if you could go directly from HTML table to valid SQL? This guide shows how to generate CREATE TABLE and INSERT INTO statements from any web table, handling type inference, identifier sanitization, and proper escapi...

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EU chief warns billions could be wasted if energy aid is not well targeted as the Iran war bites
newest submissions : multi • 2026-04-29 13:57

EU chief warns billions could be wasted if energy aid is not well targeted as the Iran war bites

submitted by /u/Playful_Leg7143 to r/worldnews [link] [comments]

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I Tried to Run Google's Most Enterprise Database on My MacBook. Here's What Actually Happened.
DEV Community • 2026-04-29 13:57

I Tried to Run Google's Most Enterprise Database on My MacBook. Here's What Actually Happened.

This is a submission for the Google Cloud NEXT Writing Challenge At Google Cloud NEXT '26, buried inside announcement #68 of 260 total announcements, was a single sentence that stopped me cold: "Run it anywhere — across multiple clouds, on-premises, or on your laptop." "It" is Google Spanner — the database that powers Gmail, Google Ads, Google Pay, and YouTube. The system Walmart, Goldman Sac...

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6m read
I Tried to Run Google's Most Enterprise Database on My MacBook. Here's What Actually Happened.
DEV Community • 2026-04-29 13:57

I Tried to Run Google's Most Enterprise Database on My MacBook. Here's What Actually Happened.

This is a submission for the Google Cloud NEXT Writing Challenge At Google Cloud NEXT '26, buried inside announcement #68 of 260 total announcements, was a single sentence that stopped me cold: "Run it anywhere — across multiple clouds, on-premises, or on your laptop." "It" is Google Spanner — the database that powers Gmail, Google Ads, Google Pay, and YouTube. The system Walmart, Goldman Sac...

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6m read
DEV Community • 2026-04-29 13:56

Maps Agentic UI Toolkit - Maps That Render Themselves

This one is subtle but genuinely impressive once you understand it. The Maps Agentic UI Toolkit gives your AI agent a visual voice for location data. Using declarative A2UI components (the new Agent-to-UI protocol Google also announced at NEXT '26), agents can now dynamically render interactive Google Maps experiences - routes, place cards, inline maps - directly inside your application, without y...

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Hacker News: Front Page • 2026-04-29 13:54

Fidelity Won't Let Fund Holders Donate to Southern Poverty Law Center

Article URL: https://www.nytimes.com/2026/04/29/business/fidelity-southern-poverty-law-center.html Comments URL: https://news.ycombinator.com/item?id=47948530 Points: 15 # Comments: 2

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/r/ReactJS - The Front Page of React • 2026-04-29 13:52

React learning

I have started my react journey a few days ago... Most of the YouTube tutorial are horrible in this library.. I was unable to understand the logic and the flow of the language for a long time. But after a bit hustle, I found a playlist from my senior, which is actually quite good .. I have ended that in just 7 to 8 days . Now in the quite better position to work on react logically. If you are sta...

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newest submissions : multi • 2026-04-29 13:52

Oil price jumps to $115 after reports of 'extended' Iran blockade

submitted by /u/Alternative-Win4058 to r/news [link] [comments]

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1m read
Real-Time Fraud Detection in Java with Kafka Streams and Vector Similarity
DEV Community • 2026-04-29 13:51

Real-Time Fraud Detection in Java with Kafka Streams and Vector Similarity

This content is based on a talk that my colleague Tim Kelly and I presented at DevNexus 2026 in Atlanta, one of the largest Java conferences in the world. Imagine you’re at a supermarket or shopping online. You tap your card or click “Buy Now”. In that exact moment, your bank has to make a decision: is this transaction legitimate, or is it fraud? And it has to do that in milliseconds, and get it ...

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Colombians are divided over the fate of hippos linked to Pablo Escobar
newest submissions : multi • 2026-04-29 13:51

Colombians are divided over the fate of hippos linked to Pablo Escobar

submitted by /u/CTVNEWS to r/worldnews [link] [comments]

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1m read
US Sanctions Sinaloa Cartel Chemical Precursor Supplier Network in India & Guatemala
newest submissions : multi • 2026-04-29 13:51

US Sanctions Sinaloa Cartel Chemical Precursor Supplier Network in India & Guatemala

submitted by /u/PilarDeLaVerdad to r/worldnews [link] [comments]

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1m read
🌾 I Built a System of Action: An Autonomous Agri-Agent for Smart Irrigation
DEV Community • 2026-04-29 13:50

🌾 I Built a System of Action: An Autonomous Agri-Agent for Smart Irrigation

This is a submission for the Google Cloud NEXT Writing Challenge Farmers don't need more advice. They need systems that act. At Google Cloud NEXT '26, one announcement stood out to me above the rest: Vertex AI Agent Builder and the push toward agentic, multi-step AI workflows. The idea of AI that doesn't just respond — but reasons and acts — got me thinking. Could this actually work in th...

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6m read
DEV Community • 2026-04-29 13:48

How to use one OpenAI-compatible gateway for chat, responses, embeddings, rerank, image, and audio APIs

If you're building an AI-powered app today, you're probably juggling multiple model providers. OpenAI for GPT. DeepSeek for cost savings. A Chinese model for specific tasks. Maybe Anthropic for Claude. Each provider has its own SDK, its own auth flow, its own quirks. That's not just annoying—it's fragile. Switching models means rewriting code. Adding a new provider means more maintenance burden. ...

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6m read
DEV Community • 2026-04-29 13:47

I don't want to give Claude SSH access to my home server

AI agents are getting scary good at ops work. Claude Code, Codex, OpenHands — they can SSH into a server, read logs, restart containers, fix configs. It works. But I still won't give my home server an SSH key for an agent. A shell is too sharp. It can inspect anything. It can delete anything. It can rm -rf the wrong path very fast and very confidently. I want the agent to help operate my serve...

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5m read
DEV Community • 2026-04-29 13:47

Organising Cypress at scale - Part 1: Custom Commands

Organising Cypress at scale When you just start using Cypress for the first time it's easy to keep everything together. You start writing a few tests, add some custom commands and so on. And this works great when you have a small test suite, but when things start to grow, so do the problems... Files get bigger, commands become hard to find, documentation is non-existant and different pe...

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6m read
DEV Community • 2026-04-29 13:47

Your AI app is silently burning $2,000/month and you don't know it. Here are the 5 patterns that bite founders.

Disclosure: I'm a senior backend tech lead and I run HostingGuru, where built-in AI monitoring is the feature I'm proudest of. This article will mention HostingGuru once at the end, but the patterns and detection methods below work on any platform — I want this useful even if you never become a customer. The cleanest version of this story is one I keep hearing from founders, with small variati...

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