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For some language families only, the configuration panel shows a second row: Application server. This is not a separate Create submenu—it appears after you select a family that has server options defined in the product.

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When it appears

Application server choices are shown only if the selected family has at least one option. In the console, built-in mappings include: Families such as Node.js, Go, Deno, and Bun use the version dropdown only; they do not show this application-server row in the current UI (no entries in the internal APP_SERVERS map for those keys).

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Behavior

  • Choosing a server sets applicationServer on the runtime resource (string key such as uvicorn, gunicorn).
  • Help text under the row describes it as the application server for that runtime family (for example “Application server for Python runtime”).
  • Logos for server types use the same icon set as elsewhere in the panel when available.

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API

Server stacks available per language can also be queried with GET /api/runtimes/servers?runtimeName=... (see Runtimes API in the bundled API docs). Use that for automation or to confirm options beyond what this guide lists. ← Runtime overview · Families and versions