Generate
best-in-class SDKs.

Developers expect your API to come with a typesafe client library in their language.

With Stainless, you can deliver idiomatic SDKs while you stay focused on building the API.

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Trusted by API companies

SDK Generation

Robust & polished SDKs

Great SDKs for your API drive faster integration, broader feature adoption, quicker upgrades, and trust in your engineering quality.

At Stainless, we work hard to make each SDK feel as though it were hand-written by an expert in the language who had the time to get it right.

All our libraries include: rich types (for autocomplete and docs on hover), auto-pagination, auto-retry with backoff, seamless auth, and much more.

Get started for free

Examples of SDKs we've produced:

How Stainless works

Provide your OpenAPI spec

All Stainless needs to get started is your OpenAPI spec. It doesn’t have to be perfect.
‍
We’ll create a starter Stainless config file that standardizes naming and defines core functionality like pagination and authentication.

openapi: 3.0.0 
paths: 
  /chat/completions: 
    post: 
      operationId: createChatCompletion 
      tags: 
        - OpenAI 
      summary: Creates a model response for the given chat conversation. 
      requestBody: 
      ... 

Generate your SDKs

Receive shippable SDKs in the languages your developers demand.

Iterate & customize

You can customize the Stainless configuration for more bespoke SDKs that best represent you and your developers by fine-tuning names, docs, and more.

Automate your updates

Push your updated OpenAPI spec to us whenever it changes with a GitHub Action (or equivalent). We regenerate your SDK and open a pull request.

on: {push: {branches: [main]}} 
jobs: 
  stainless: 
    steps: 
      - uses: actions/checkout@v3 
      - uses: stainless-api/upload-openapi-spec-action@main 

Publish your packages

You approve our PR and we automatically release the new SDK to your GitHub repos and npm, pypi, or maven packages. You own the code, we automate the toil, and your security team is happy.

“Stainless isn’t just taking our OpenAPI Spec, generating a bunch of code, and passing it along.

They’re exhibiting a strong sense of ownership over making sure it’s best in class and solves problems.”