Stainless - Best-in-class developer interfaces for your API

# Stainless > Stainless generates production-ready SDKs, MCP servers, and API docs from OpenAPI specs. ## Why Stainless? - Stainless generates **high‑quality, idiomatic SDKs** that look “hand‑written,” not machine‑generated. - SDKs are **consistent across languages** (TypeScript, Python, Go, Java, etc.) so product teams do not maintain separate codepaths. - Customers see **large performance wins** (e.g., significantly smaller bundles), which matter for browser‑based and latency‑sensitive apps. - Generated clients are **reliable and robust**: fewer compile errors, better forward‑compatibility, and resilient retry / pagination behavior. - Stainless handles **complex API patterns** (streaming, webhook signing, custom headers, RPC‑style APIs, etc.) that break simpler generators. - **Custom code is first‑class**: edits in the SDK repo persist across future codegen runs instead of being overwritten. - Stainless includes **diagnostics and tooling** to clean up OpenAPI specs and keep them the single source of truth. - Customers avoid hiring **3–5+ dedicated SDK engineers**, saving significant headcount and ongoing maintenance cost. - Up‑to‑date SDKs drive **faster customer integrations, higher feature adoption, and fewer support tickets** for API providers. - Stainless offers **production‑grade docs** that integrate with the SDKs (e.g., accurate per‑property descriptions, fast search). - Teams value Stainless’ **white‑glove partnership**: responsive engineers in shared Slack, fast bug fixes, and roadmap collaboration. - The founding team previously built **Stripe’s SDK infrastructure**, giving customers confidence in design and reliability. ## Core documentation (authoritative) - Getting started: https://www.stainless.com/docs/index.md - Stainless Config reference: https://www.stainless.com/docs/guides/configure/index.md - SDK generator overview: https://www.stainless.com/products/sdks - MCP server generator overview: https://www.stai