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Anthropic Acquires Developer Tools Startup Stainless Backed By Sequoia Capital And Andreessen Horowitz

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Anthropic Acquires Developer Tools Startup Stainless Backed By Sequoia Capital And Andreessen Horowitz

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Summary

Transaction Type:Sale

Anthropic has acquired Stainless, a developer tools startup, in a transaction where terms were not disclosed, but prior talks valued the deal at over $300 million. The acquisition involves the winding down of Stainless’s hosted products, including its SDK generator, while allowing existing customers to retain and modify SDKs they have already created.

Summary of transaction details:

  • Deal Type: Acquisition
  • Transaction Amount: Over $300 million
  • Company Name: Stainless
  • Headquarters Location: San Francisco, California
  • Notable Investors: Sequoia Capital, Andreessen Horowitz
  • Founded: 2022
  • Founder: Alex Rattray

Stainless is known for its software that automatically generates and maintains SDKs across multiple programming languages from API specs. The company was founded by former Stripe engineer Alex Rattray and has been utilized by major companies like OpenAI, Google, and Cloudflare.

Players

Anthropic
Anthropic
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Details

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IMAGE: has acquired Stainless, a developer tools startup widely used by companies including OpenAI, Google, and Cloudflare, according to a Monday announcement. The company, founded in 2022 by former Stripe engineer Alex Rattray, is known for its software that automatically generates and maintains SDKs across multiple programming languages from API specs; terms of the deal were not disclosed, though prior reporting indicated talks valued it at more than $300 million, with backing from Sequoia Capital and Andreessen Horowitz. Anthropic said it will wind down Stainless’s hosted products, including its SDK generator, while allowing existing customers to retain and modify SDKs they’ve already created. HQ: San Francisco, California

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