Anthropic has acquired the dev tools startup used by OpenAI, Google, and Cloudflare

Anthropic acquired Stainless, a New York startup founded in 2022 that automates creation and maintenance of SDKs for developers using APIs; the post does not disclose the deal price or Anthropic’s integration plan.

Why it matters: HKR-H/K/R pass: the rival-used startup hook is strong, the SDK automation mechanism is concrete, and the Anthropic developer-stack angle resonates. Missing deal value and integration details keep it below the 78+ band.