Orrick, Herrington & Sutcliffe LLP

05/19/2026 | Press release | Distributed by Public on 05/19/2026 15:33

Anthropic acquires Stainless

Anthropic, a leading AI safety and research company, is acquiring Stainless, a leader in SDKs and MCP server tooling.

Orrick advised Anthropic.

THE IMPACT

The frontier of AI is shifting from models that answer to agents that act - and agents are only as capable as the systems they can reach. Anthropic is acquiring Stainless to extend that reach even further.

"Stainless has shaped how developers experience the Claude API since the start, and it's been great to work with them on that," said Katelyn Lesse, Head of Platform Engineering at Anthropic. "Agents are only as useful as what they can connect to. We're excited to bring the Stainless team into Anthropic to advance Claude's ability to connect to data and tools."

THE TEAM

The deal team advising Anthropic was led by Mark Seneca, Kyle Zhu, Matthew Sawyer, Susana Min, Hilary Finkelstein and Charles Kauffman and by Laura Barr, Stephen Venuto and Jay Schau, with invaluable support from Christine McCarthy, Katherine Hogan, Sharon Zhou, Christina Bouchot, Lisa Bowman, Steven Malvey, Kimberly Loocke, Clem Roberts, Sarah Schaedler, Daniel Yost, Taylor Ranfos, Shannon Yavorsky, Carly Owens, Amy Ray, Victoria Newbold, Kristin Petersen, Jeanine McGuinness, Neetu Ahlawat, Allison Bradham, Christopher De Los Reyes, Laura Becking, Chanani Sandler, Deborah Abernathy and Marisol Sandoval.

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Orrick, Herrington & Sutcliffe LLP published this content on May 19, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on May 19, 2026 at 21:33 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]