# JSON and API

- [To JSON](https://docs.tabula.io/data-flows/tools-nodes/json-and-api/to-json.md): Creates Objects or Arrays in JSON format from the specified columns
- [From JSON](https://docs.tabula.io/data-flows/tools-nodes/json-and-api/from-json.md): Flatten JSON to columns and rows
- [API Call](https://docs.tabula.io/data-flows/tools-nodes/json-and-api/api-call.md): Calls an external API and return a new column with answers
- [API Table](https://docs.tabula.io/data-flows/tools-nodes/json-and-api/api-table.md): Calls an external API and return a new column with answers


---

# Agent Instructions: 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://docs.tabula.io/data-flows/tools-nodes/json-and-api.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.