developer-apis

OpenAI GPT models are a family of large language models that generate human-like text responses for applications including chatbots, content creation, code generation, and AI-powered software development.

Square is an integrated business platform offering point-of-sale systems, payment processing APIs, and business management tools for merchants of all sizes.

A comprehensive comparison of six leading payment processing platforms that enable businesses to accept, process, and manage online and in-person payments through APIs, developer tools, and integrated business solutions.

A REST API service by Anthropic that provides programmatic access to Claude AI models for text generation, conversation, and analysis tasks through HTTP endpoints.

Checkout.com is a cloud-based payment processing platform that provides APIs, SDKs, and tools for businesses to accept payments, manage transactions, and optimize payment performance globally.