Anthropic Acquires Stainless — The $300M Bet on MCP and SDK Infrastructure
Anthropic just made its biggest developer infrastructure move yet. The company announced today that it’s acquiring Stainless, the SDK and Model Context Protocol (MCP) server generation platform that has quietly powered Anthropic’s own developer experience since day one — for a reported deal value of approximately $300 million, more than double Stainless’s December 2024 valuation. This isn’t just a talent acquisition or a tuck-in deal. It’s a signal about where the AI infrastructure battle is actually being fought. ...