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API (Application Programming Interface)

An API is an interface that allows different software applications to communicate with each other and exchange data.

What is an API?

An Application Programming Interface (API) defines the rules and protocols through which software components interact.

API Types

  • REST API: HTTP-based, resource-oriented
  • GraphQL: Flexible data queries
  • WebSocket: Real-time communication
  • gRPC: High-performance RPC calls

APIs in Web Development

Modern web applications use APIs for:

  • Backend-frontend communication
  • Integrating third-party services
  • Synchronizing data between systems
  • Headless CMS connectivity

Related Terms

Server-Side Rendering (SSR)

Server-Side Rendering is a technique where HTML pages are generated on the server and sent to the browser, instead of being created in the client browser.

MCP (Model Context Protocol): AI Integration for Websites

How MCP servers enable communication between your website and AI systems like ChatGPT.

E-Commerce: Marketplace Integration and Stock Management

How bidirectional API communication with Amazon, eBay and other marketplaces works.

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