SubToAPI Blog
What Is API Gateway in MuleSoft? Anypoint Explained
MuleSoft's API Gateway explained: how Anypoint Flex Gateway and Mule runtime enforce policies, route traffic, and secure APIs.
2026-09-08 · 5 min readWhat Is the API Gateway Pattern? A Design Breakdown
The API gateway pattern explained as a software design pattern: the problem it solves, its structure, common variants, and when to use it.
2026-09-08 · 5 min readWhat Is an API Gateway in Java? A Developer Guide
A clear look at what an API gateway means in the Java ecosystem, the main Java tools available, and how to build one yourself.
2026-09-08 · 5 min readWhat Is API Gateway in Azure? APIM Explained
Learn what Azure API Management is, how it works as an API gateway, its core features, pricing tiers, and how it compares to alternatives.
2026-09-08 · 5 min readWhat Is an API Gateway and Why Is It Needed?
A clear, practical explanation of what an API gateway is, the problems it solves, and when your system actually needs one.
2026-09-08 · 5 min readWhat Is an API Gateway in .NET Core? Explained
Learn what an API gateway means in .NET Core, how tools like YARP and Ocelot implement it, and when to build one versus use a managed service.
2026-09-08 · 4 min readUnderstanding API Gateways in Spring Boot Microservices
What an API gateway does in a Spring Boot microservices setup, how Spring Cloud Gateway works, and how to configure routes with real config examples.
2026-09-08 · 6 min readWhat Is an API Gateway in Spring Boot? Explained
Learn what an API gateway is in Spring Boot, how Spring Cloud Gateway works, and when to build one vs. use a managed alternative.
2026-09-08 · 5 min readWhat Is an API Gateway Used For? Core Use Cases
A practical look at what an API gateway is used for: authentication, rate limiting, routing, monitoring, and consolidating access to backend services.
2026-09-08 · 5 min readAPI Gateway Basics: What It Is and How It Works
A clear explanation of what an API gateway is, how it processes requests, and why teams put one in front of their backend services.
2026-09-08 · 5 min readWhat Is an API Gateway in Microservices?
A clear explanation of what an API gateway is in a microservices architecture, why teams use one, and how it differs from a load balancer.
2026-09-08 · 5 min readWhat Is API Gateway in AWS? A Clear Breakdown
A practical explanation of what Amazon API Gateway is, how it works, its pricing model, and when it's the right tool for your architecture.
2026-09-08 · 5 min readWhat Is an API Gateway? The Practical Answer
A clear, jargon-free answer to "what is an API gateway," what it actually does, and when you need one for your APIs.
2026-09-08 · 5 min readWhat Are API Gateways? Definition, Uses & Examples
A clear answer to "what are API gateways": what they do, why teams use them, common types, and how they compare to a hosted API layer.
2026-09-08 · 5 min readWhat Is the Use of an API Gateway? 7 Real Reasons
What is the use of an API gateway? A practical rundown of the problems it solves: auth, rate limiting, routing, monitoring, and more.
2026-09-08 · 5 min readAPI Gateway, What Is It? A No-Nonsense Overview
A straight answer to "api gateway what is it": what the component does, why teams add one, and when a lighter alternative makes more sense.
2026-09-08 · 5 min readGet Started with API Gateway: A First-Steps Guide
A practical guide to getting started with an API gateway: what to decide first, how to set one up, and common mistakes to avoid.
2026-09-08 · 5 min readHow Does an API Gateway Work? A Technical Breakdown
A plain explanation of how an API gateway processes requests, handles auth, routing, and rate limits, with real examples of each mechanism.
2026-09-08 · 5 min readWhat Is an API Gateway? A Clear Explanation
A plain explanation of what an API gateway is, what problems it solves, and when you actually need one in your architecture.
2026-09-08 · 5 min readHow API Gateway Works in Microservices Architecture
A clear breakdown of how an API gateway works in a microservices setup — routing, auth, aggregation, and the tradeoffs it introduces.
2026-09-08 · 5 min readHow an API Gateway Works: The Request Lifecycle
A step-by-step breakdown of how an API gateway processes requests, from TLS termination to routing, auth, rate limiting, and response handling.
2026-09-08 · 5 min readHow to Access API Gateway Logs (By Platform)
Learn where API gateway logs live on AWS, Kong, Azure, and Nginx, how to enable them, and what to look for when debugging requests.
2026-09-07 · 5 min readHow to Design an API Gateway: Key Decisions to Get Right
A practical guide to designing an API gateway: routing, auth, rate limiting, observability, and the tradeoffs behind each decision.
2026-09-07 · 5 min readHow to Secure an API Gateway: A Practical Checklist
Learn how to secure an API gateway with authentication, rate limiting, key rotation, and monitoring — a practical checklist for production APIs.
2026-09-07 · 5 min readHow to Use an API Gateway: A Developer's Guide
Learn how to use an API gateway step by step — authentication, routing, request handling, and rate limits — with practical curl and JS examples.
2026-09-07 · 5 min readHow to Increase API Gateway Timeout (By Provider)
Step-by-step instructions for raising API gateway timeout limits on AWS, Nginx, Cloudflare, and custom gateways, plus when a higher timeout isn't the real fix.
2026-09-07 · 4 min readHow to Implement an API Gateway in Microservices
A step-by-step guide to implementing an API gateway in a microservices architecture, from routing and auth to rate limiting and rollout.
2026-09-07 · 5 min readHow to Implement an API Gateway in Spring Boot
A step-by-step guide to implementing an API Gateway in Spring Boot using Spring Cloud Gateway, with routing, filters, and rate limiting examples.
2026-09-07 · 4 min readHow to API Gateway: A Practical Setup Guide
A step-by-step guide to setting up an API gateway: choosing a model, routing, auth, rate limits, and monitoring, with real examples.
2026-09-07 · 5 min readAPI Gateway Lambda: How the Integration Actually Works
A practical guide to wiring API Gateway to Lambda: integration types, request/response mapping, cold starts, costs, and common mistakes.
2026-09-07 · 5 min readKong API Gateway: What It Does and When to Use It
A practical guide to Kong API Gateway — architecture, plugins, deployment modes, and how it compares to managed alternatives for real projects.
2026-09-07 · 5 min readAPI Gateway Icon: Where to Find One and How to Use It
Looking for an API gateway icon for a diagram or slide? Here's where to find good ones, common visual conventions, and how to use them correctly.
2026-09-07 · 5 min readAPI Gateway Spring Boot: Setup, Options, Tradeoffs
How to build an API gateway in Spring Boot with Spring Cloud Gateway, when to use one, and how to route AI calls through it correctly.
2026-09-07 · 4 min readAPI Gateway Meaning: A Plain-English Breakdown
What "API gateway" actually means, where the term comes from, and how it differs from related concepts like proxies and load balancers.
2026-09-07 · 5 min readAPI Gateway Timeout: Causes and How to Fix It
What causes a 504 API gateway timeout, how to diagnose it, and practical fixes for slow upstreams, LLM streaming, and long-running requests.
2026-09-07 · 5 min readAPI Gateway Pricing: How the Models Actually Work
API gateway pricing explained: per-request, per-seat, and hybrid models compared, with real cost math and what to check before you commit.
2026-09-07 · 5 min readAPI Gateway in Microservices: Role, Patterns, Tradeoffs
How an api gateway in microservices architecture handles routing, auth, and rate limits — plus patterns, tradeoffs, and when to skip one.
2026-09-07 · 5 min readAPI Gateway vs Load Balancer: What's the Difference?
API gateway vs load balancer explained: what each does, where they overlap, and how to decide which one (or both) your architecture needs.
2026-09-07 · 5 min readAWS API Gateway: What It Is and When to Use It
A practical guide to AWS API Gateway — REST vs HTTP APIs, setup steps, pricing model, and when a managed gateway isn't the right fit.
2026-09-07 · 5 min readAPI Gateway Azure: Options, Setup, and When to Skip It
A practical guide to API gateway options on Azure — API Management, Application Gateway, and when a managed API layer is simpler.
2026-09-07 · 4 min readWhat Is an API Gateway and When Do You Need One?
A practical explanation of what an API gateway does, when you actually need one, and how it applies to AI model access like Claude.
2026-09-07 · 5 min readWhy an Apigee Proxy Needs a Product to Work
An Apigee proxy alone has no consumers, keys, or quotas. Learn why API products are required to expose, secure, and monetize a proxy.
2026-09-07 · 5 min readCan AI Reason? What "Reasoning" Actually Means Today
Can AI reason, or just pattern-match convincingly? A practical breakdown of what LLM reasoning is, its limits, and how to build with it responsibly.
2026-09-07 · 5 min readIs API.ai Free? What It Actually Costs Today
API.ai no longer exists as a standalone product — it's now Google Dialogflow. Here's what's free, what isn't, and what to use instead.
2026-09-07 · 5 min readWhy Use an AI API Instead of a Chat Subscription?
Why use an AI API over a chat UI or self-hosted model: automation, integration, scalability, and cost control explained with practical examples.
2026-09-07 · 5 min readBest AI Picture Generator: A Practical Comparison
A practical comparison of the best AI picture generators in 2025 — Midjourney, DALL-E 3, Stable Diffusion, Firefly, and Ideogram — by use case.
2026-09-07 · 5 min readBest AI API Solution for OCR Apps: What to Use
Raw OCR text is messy. Here's how to pick an AI API that cleans, structures, and extracts data from OCR output reliably.
2026-09-07 · 5 min readBest AI API for Chatbots: What to Actually Look For
Choosing the best AI API for chatbots depends on streaming, memory, latency, and cost — not just raw model quality. Here's what matters.
2026-09-07 · 5 min readBest AI API for Agents: What Actually Matters
Building an AI agent? Here's what to look for in an API — tool use, streaming, context handling, and reliability — with practical examples.
2026-09-07 · 5 min readBest AI API, According to Reddit: What Devs Say
What Reddit actually recommends for the best AI API, why answers vary, and how to evaluate providers yourself instead of trusting one thread.
2026-09-07 · 5 min readBest AI APIs for Free: What You Actually Get
Looking for the best AI APIs free of charge? Here's what free tiers really offer, their limits, and how to pick one that fits your project.
2026-09-07 · 5 min readBest AI API Subscription: Flat Pricing vs Pay-Per-Token
Comparing AI API subscription models to pay-as-you-go pricing, so you can pick the option that fits your usage, budget, and team size.
2026-09-07 · 5 min readBest AI API for Roleplay: What to Look For
Choosing the best AI API for roleplay apps means weighing context length, character consistency, streaming, and cost. Here's how to decide.
2026-09-07 · 5 min readBest AI API to Use: Match the Model to the Job
There's no single best AI API — the right choice depends on your task, budget, and latency needs. Here's how to pick correctly.
2026-09-07 · 5 min readBest AI API for Coding: A Practical Comparison
Comparing the best AI APIs for coding tasks — code generation, tool use, agents, and IDE integration — with practical selection criteria.
2026-09-07 · 5 min readBest AI API Pricing: A 2025 Cost Comparison Guide
Compare AI API pricing models — pay-per-token, subscriptions, and flat-rate plans — to find the best deal for your usage pattern and budget.
2026-09-07 · 5 min readThe Best Way to Get a Free AI API Key
Looking for a free AI API key? Here's what free tiers actually offer, their limits, and a practical alternative for real projects.
2026-09-07 · 5 min readBest AI API Key: How to Choose and Manage One
Looking for the best AI API key setup? Compare providers, security practices, and key management options for teams and solo developers.
2026-09-07 · 5 min readBest AI API Providers Compared for 2025
A practical comparison of the best AI API providers in 2025 — pricing, models, rate limits, and which one fits your product's needs.
2026-09-07 · 5 min readBest Free AI API Options for Developers in 2025
Looking for the best free AI API? Compare real free tiers, trial credits, and rate limits — and know when it's time to pay for a real key.
2026-09-07 · 5 min readTurn your Claude access into an HTTPS API
SubToAPI gives you application API keys, streaming, tool use and usage insights on top of your existing Claude access — set up in minutes.
Start free Read the quickstart →