The deal gives Anthropic tighter control over how developers connect Claude to software and business systems as AI vendors race to simplify agent development.

Anthropic acquired Stainless, the SDK toolmaker behind OpenAI and Google, then shut the hosted products down for rivals. Inside the agentic AI infrastructure play.

Stainless, a New York-based startup, founded in 2022, rose to prominence in the emerging AI industry for automating the creation and maintenance of software development kits, or…