How to Get a Claude (Anthropic) API Key — and Connect It to Your Product

Claude is a suite of large language models developed by Anthropic, designed for use in AI-powered SaaS products, internal assistants, or agent systems, and requires an Anthropic API key for integration. The process involves creating an Anthropic account, generating and securing the API key, setting up billing through a prepaid credit system, and testing the API key with sample requests. To ease integration with multiple AI models, Unified's Generative AI API allows developers to standardize models, prompts, and embeddings across various providers, enabling seamless switching and comparison without rewriting code. Additionally, Unified's Multi-Model Control Plane (MCP) facilitates connecting Claude to SaaS platforms, allowing structured data interactions through authorized API executions. This infrastructure supports real-time data access and usage-based pricing, making it suitable for AI-native SaaS teams looking to transition from experimentation to production.