Code Generation

Scalar generates a ready-to-copy code snippet for every request in 40+ HTTP clients across 21 languages. Pick a language from the picker next to the snippet, copy it, and paste it into your app.

Live updates

The snippet re-renders as you edit the request: change a header, swap the active environment, add a body field, and the code updates immediately. {{ environment variables }} and {{$dynamic-variables}} are resolved to their current values in the output, so the snippet is ready to run without further substitution.

Customize with OpenAPI

Override the generated snippet for any operation with the x-code-samples extension. Each entry sets a language tag, a label shown in the language picker, and the full source. Custom samples are listed alongside the generated ones.

openapi: 3.1.0
info:
  title: Hello World
  version: 1.0.0
paths:
  /users:
    post:
      summary: Create a user
      x-code-samples:
        - lang: bash
          label: cURL (with retry)
          source: |
            curl --retry 3 --retry-delay 2 \
              -X POST https://api.example.com/users \
              -H "Content-Type: application/json" \
              -d '{"name":"Jane"}'
        - lang: python
          label: Python (requests + retries)
          source: |
            import requests
            from requests.adapters import HTTPAdapter, Retry

            session = requests.Session()
            session.mount('https://', HTTPAdapter(max_retries=Retry(total=3, backoff_factor=2)))
            session.post('https://api.example.com/users', json={'name': 'Jane'})

Each sample has:

Supported languages