Stainless
Stainless automates the generation and maintenance of idiomatic, multi-language SDKs from API specifications, serving API-first companies that need production-ready client libraries without dedicating engineering headcount to SDK upkeep.
Raised $25M across disclosed rounds.[3][4][6]
Series A closed December 2024, led by Andreessen Horowitz.[3][4][1]
post-money valuation is not publicly disclosed.
Named investors include Andreessen Horowitz, Sequoia Capital, The General Partnership, Felicis, Zapier, MongoDB Ventures, Claire Hughes Johnson (angel), Amit Agarwal (angel).[3][4][6]
Alex Rattray, Founder & CEO[3][4][5]
David Ackerman, Founding Engineer[3]
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Ask for one referenceable production customer.
Not a recommendation. The first thing this ledger cannot answer.
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Stainless
Stainless automates the generation and maintenance of idiomatic, multi-language SDKs from API specifications, serving API-first companies that need production-ready client libraries without dedicating engineering headcount to SDK upkeep.
Ask for one referenceable production customer.
Not a recommendation. The first thing this ledger cannot answer.