Stainless has dozens of paying clients in its beta, including Lithic, LangChain, Orb, Modern Treasury, and Cloudflare. The company recently closed a $3.5 million seed round with participation from Sequoia and The General Partnership. Stainless offers a free tier for publishing a single SDK, but charges between $250 per month and $30,000 per year for multiple SDKs across multiple programming languages. The company is expected to be profitable as soon as this year, with annual recurring revenue around $1 million.
Key takeaways:
- AI startups like OpenAI, Anthropic and Together AI use Stainless, a platform created by ex-Stripe staffer Alex Rattray, to generate SDKs for their APIs.
- Stainless takes in an API spec and generates SDKs in a range of programming languages including Python, TypeScript, Kotlin, Go and Java.
- Stainless recently closed a $3.5 million seed round with participation from Sequoia and The General Partnership.
- Stainless has a 10-person team based in New York and expects to grow to 15 or 20 by the end of the year.