Stainless Tech Stack

SDK generation platform for REST APIs and LLM integrations

Software Development New York, NY 51–200 employees Founded 2022 Privately Held

Stainless generates production-grade SDKs and documentation for REST APIs across multiple languages, with recent momentum around LLM-powered tooling. The stack reveals a developer-first, polyglot engineering approach (TypeScript, Rust, Swift, C#, Elixir, PHP), and the project list shows an inflection point: core SDK generation is now maturing into LLM integration (MCP servers, AI-native tooling), while go-to-market is shifting from product-led into sales-engine mode (active hiring in GTM, pricing strategy work, conference activations).

Tech Stack 14 technologies

Core StackOpenAI Cloudflare Anthropic TypeScript React GraphQL C# PHP Rust Swift Elixir Ashby OpenAPI LinkedIn

What Stainless Is Building

◆Challenges

Scaling product
Scaling a team from the ground up
Evolving hiring motion
Improving recruiting strategy
Building sales engine
Improving gtm processes
Improving self-serve sdk
Simplifying user path
Growing team
Faster product development

▲Active Projects

Executive dinners
Product & feature launch strategy
Stainless sdk studio
Conference activations
Pricing and packaging initiatives
Evolving hiring motion
Improving recruiting strategy
Sales engine development
Sdk studio improvements
Llm-powered tools for sdk generation

Hiring Activity

Steady20 roles · 7 in 30d

Department

Engineering

Marketing

Sales

Design

Product

Support

Seniority

Mid

Manager

Lead

Senior

Junior

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About Stainless

Stainless helps API platform teams build and distribute idiomatic SDKs without manual maintenance. The product generates SDKs in popular languages, MCP servers, and API documentation directly from OpenAPI specs. They operate in the developer infrastructure space, serving forward-thinking API teams. Founded in 2022 and based in New York, the company is 51–200 people and currently scaling product, sales, and recruiting motions in parallel — typical of an early Series A or B stage moving from founder-led to repeatable growth.

HeadquartersNew York, NY

Company Size51–200 employees

Founded2022

Hiring MarketsUnited States

Frequently Asked Questions

What languages does Stainless support for SDK generation?

TypeScript, Rust, Swift, C#, PHP, and Elixir are listed in the tech stack, indicating multi-language SDK output generation capability.

What is Stainless working on now?

Core projects include SDK Studio improvements, LLM-powered tools for SDK generation, pricing strategy, sales engine development, and conference activations. Pain points signal focus on scaling product velocity and formalizing GTM.