> For the complete documentation index, see [llms.txt](https://dev.ubidots.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.ubidots.com/ubifunctions/runtimes.md).

# Runtimes

Ubidots supports the following runtimes:

* [Python](/ubifunctions/runtimes/python.md)
* [NodeJS](/ubifunctions/runtimes/nodejs.md)
* [Custom Runtimes](/ubifunctions/runtimes/custom-runtimes.md)

## Runtime versions

As of this writing, Ubidots supports the following runtime versions:

* Python 3.9
* Python 3.11
* Node.js 20

## Layers

Ubidots runtime architecture has three layers. Each layer includes a specific set of libraries and capabilities.

* **Lite:** The lightest option. It offers a minimal environment that is fast and efficient.
* **Base:** A step up from `Lite`. It includes more libraries for broader functionality.
* **Full:** The most complete option. It is available only for Python runtimes on Enterprise licenses or above.


---

# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://dev.ubidots.com/ubifunctions/runtimes.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.