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10:22
2026-06-29
dev.to
developer-tools

Build Your First MCP Server in 30 Minutes

A developer built an MCP (Model Context Protocol) server in 30 minutes using TypeScript and the official SDK. The server allows AI agents like Claude to connect and query external tools via a stateles…

10:04
2026-06-29
dev.to
developer-tools

Mobile App Security Best Practices in 2026

A developer outlines mobile app security best practices for React Native and Expo apps in 2026, focusing on the OWASP Mobile Top 10. Key recommendations include using expo-secure-store instead of Asyn…

10:00
2026-06-29
dev.to
artificial-intelligence

I slashed AI API costs by 80% with a cache that actually works

A developer built a semantic cache using sentence-transformers to reduce AI API costs by 80%. The cache stores embeddings of prompts and reuses responses for semantically similar queries, cutting a $4…

09:32
2026-06-29
dev.to
ai-products

OpenAI is investigating issues with Codex usage limits

OpenAI is investigating issues with Codex usage limits after some users experienced faster usage drain. The Codex team spent Sunday in a war room analyzing logs, and OpenAI has issued a full reset of …

09:10
2026-06-29
dev.to
natural-language-processing

I upgraded my AI concierge by turning it to a plain search box

A developer replaced the AI concierge on Beaches of Greece with a plain search box after the NLP stack produced confident nonsense. The original system used wink-nlp, compromise, and sentiment analysi…

09:06
2026-06-29
dev.to
artificial-intelligence

Architect Elite Answers. Dominate Every Stack.

A developer launched InterviewPro, an AI-powered interview preparation platform that offers mock interviews, company-specific questions, resume review, and system design preparation. The tool aims to …

08:52
2026-06-29
dev.to
developer-tools

How to Track People Also Ask Results with a SERP API

A developer built a Python script that uses a SERP API to track Google's People Also Ask (PAA) results over time. The script fetches PAA questions for a set of keywords, saves snapshots as CSV files, …

08:47
2026-06-29
dev.to
large-language-models

How to switch AI models without rewriting your app

A developer from TokenBay demonstrates how to switch AI models without rewriting application code by using an OpenAI-compatible API gateway. The approach allows developers to keep the familiar OpenAI …

08:45
2026-06-29
dev.to
artificial-intelligence

How Long Until Your AI Edge Stops Paying?

A developer warns that the most dangerous AI edge is the one that works, as it commoditizes faster than defenses can be built. Nine in ten organizations use AI, but fewer than four in ten see measurab…

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