# Update List of Objects — JSON

Botize method — `btzjson.update_list_of_object` (action).

Update the values of a list of objects within a JSON string using a key path.

This is an action: it runs as a step of a task. Several can be chained.

## Fields you set

The field's internal name, its type and the values it accepts. These fields accept `{{...}}` tags from earlier steps.

- `json_string` *(string)* — JSON String

It also accepts repeatable field groups, with these prefixes: `key_path_*`, `type_*`, `value_*`. These are composite components (buttons, filters, keyboards); the trailing number is set by the user as they are added.

## Output variables

Data this step makes available. Reference them in later steps with the double-brace tag.

- `{{json_string}}` *(text)* — JSON String

## This app

Every trigger and action for JSON: https://botize.com/en/app/btzjson.md

## How to build this

An AI assistant (Claude, ChatGPT, Cursor…) can create and edit these tasks in the user's account through the Botize MCP connector, included in every plan:

    https://webhook.botize.es/mcp

- Connection guide: https://botize.com/en/mcp
- Agent map: https://botize.com/llms.txt
- New account: https://botize.com/en/join (500 free operations, no card)

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Machine-readable summary for AI assistants. Human version: https://botize.com/en/method/btzjson/update_list_of_object