API Development

Articles, guides and tutorials on building and consuming APIs, covering REST, GraphQL, API design principles and developer best practices.

Building AI Agents with Cloudflare Workers and LangChain

Building a Cloudflare Workers AI agent is the next step in moving from simple AI prompts to autonomous workflows. These systems, known as AI agents, use Large Language Models (LLMs) to call external tools, make decisions, and execute tasks on their own. While running agents traditionally required heavy servers, this...

DeepSeek R1 vs. OpenAI o3-mini: Which API is Best?

Choosing between DeepSeek R1 vs OpenAI o3-mini is a critical decision for developers integrating reasoning APIs into software applications in 2026. When it comes to reasoning APIs, these are the two strongest candidates most teams end up weighing. Both models excel at complex tasks, code generation, mathematical...

Build a Cloudflare Workers API: Serverless Guide 2026

Cloudflare Workers let you run backend code at the edge, close to your users, without managing servers. For APIs, that combination of near-zero cold starts, global distribution, and tightly integrated storage makes Workers a compelling platform in 2026. This guide explains how a Cloudflare Workers API is structured and...

Claude API vs OpenAI API: A Developer's Comparison 2026

This is a developer-focused Claude API vs OpenAI API comparison of the two most widely used large language model APIs: Anthropic’s Claude API and OpenAI’s API. It is not about which chatbot feels smarter in casual use; it is about what matters when you are building software on top of them: integration, tool use,...

Retrieval-Augmented Generation (RAG) Explained 2026

A general-purpose AI model knows a lot about the world and nothing about your business. It has never seen your product manuals, your internal policies, or last quarter’s reports. Retrieval-augmented generation (RAG) is the technique that closes that gap: it lets a model answer questions using your documents, accurately...

REST API vs GraphQL in 2026 - How to Choose the Right One

Search interest in “REST vs GraphQL” has remained consistently high throughout the 2020s, with the debate gaining renewed urgency as more teams build frontend-heavy products with complex data requirements. GraphQL has been in production since Facebook open-sourced it in 2015 and is now mature, well-tooled, and...

AI Integration for UK SMEs - A Practical Guide for 2026

Research into UK SME technology adoption consistently shows a significant gap between AI interest and AI integration. Industry surveys conducted in 2025 and 2026 suggest that the majority of UK small businesses express interest in using AI in their operations, but fewer than one in five have integrated it into any...

How to Build a Web App in 2026 - The UK Developer's Guide

Search interest in “how to build a web app” has grown 40% in the past two years, and the searches are getting more specific: people are not just asking whether it is possible, they want to know how long it takes, what it costs, and what to do first. In 2026, the tooling available to a small team or solo developer is...

Node.js vs Python - Which Backend Language to Choose in 2026

Search interest in “Node.js vs Python” has grown roughly 25% year-on-year and shows no signs of levelling off. That is not surprising: both ecosystems have matured considerably, both have first-class async support, and neither is going anywhere. What has shifted in 2026 is the weight that AI and machine learning...