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Anthropic Acquires Stainless

·2026.05.18 09:00

Key point

Anthropic has acquired Stainless to strengthen Claude's SDK and MCP connectivity.

Details

Anthropic has acquired Stainless to strengthen its capabilities in generating SDKs and MCP servers. Anthropic stated that an agent's usefulness depends on the range of systems it can connect to, and that it aims to let Claude reach data and tools more broadly.

Stainless, founded in 2022, has been involved from early on in generating Anthropic's official SDKs. Hundreds of companies use the platform to build SDKs in TypeScript, Python, Go, Java, Kotlin, and more, as well as CLIs and MCP servers.

Anthropic explained that the MCP they created has enabled agent connectivity. With this combination, the Claude Platform will further expand the scope of developer experience and agent connectivity.

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