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# Add form field

> Add a field to a form in the Form Editor. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/123formbuilder/add_form_field

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Add a field to a form in the Form Editor.

123FormBuilder MCP tools: https://cotlet.dev/docs/mcp/123formbuilder.md

MCP tool: `123formbuilder_write → add_form_field`

Access: write. Confirm: waits for the user's OK before it runs.

Adds one field by the name it has in the Fields panel (Essentials, Contact details, Date & Time and the other groups). With after_field it is placed below that field, like a field added while another is selected; without it, at the end. A form embedded with the JavaScript code shows the new field as soon as it is saved. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `form_id` | integer | yes | Form id from list_forms. |
| `field_type` | string | yes | Field type as named in the Fields panel, e.g. Email. |
| `label` | string | yes | Label shown above the field. |
| `after_field` | string | no | Label of the field it goes below. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "123formbuilder_write",
    "arguments": {
      "operation": "add_form_field",
      "arguments": {
        "form_id": 5130021,
        "field_type": "Email",
        "label": "Work email",
        "after_field": "Email"
      }
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "form_id": 5130021,
    "field": {
      "label": "Work email",
      "type": "Email",
      "required": false
    },
    "position": 3
  },
  "isError": false
}
```

Previous: [Update notification email](https://cotlet.dev/docs/mcp/123formbuilder/update_notification_email.md)
Next: [Update form field](https://cotlet.dev/docs/mcp/123formbuilder/update_form_field.md)

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