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# Change contact segments

> Adds contacts to segments and removes them from others, like the Change Segments batch action. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/mautic/change_contact_segments

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)

Adds contacts to segments and removes them from others, like the Change Segments batch action.

Mautic MCP tools: https://cotlet.dev/docs/mcp/mautic.md

MCP tool: `mautic_write → change_contact_segments`

Access: write.

Applies the Change Segments batch action to the contacts you list: they join the segments in add and leave the ones in remove. Only static segments take hand-picked members, because a dynamic segment is decided by its filters. It reaches nobody by itself, and one call with add and remove swapped undoes it, so it does not wait for your OK; a campaign that starts from the segment may email the new members.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `contact_ids` | array | yes | Contact IDs from list_contacts. |
| `add` | array | no | Segment aliases to add the contacts to. |
| `remove` | array | no | Segment aliases to remove the contacts from. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "mautic_write",
    "arguments": {
      "operation": "change_contact_segments",
      "arguments": {
        "contact_ids": [
          1042,
          1388,
          1410
        ],
        "add": [
          "newsletter"
        ]
      }
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "updated": 3,
    "added": [
      "newsletter"
    ],
    "removed": []
  },
  "isError": false
}
```

Previous: [Merge contacts](https://cotlet.dev/docs/mcp/mautic/merge_contacts.md)
Next: [Set Do Not Contact](https://cotlet.dev/docs/mcp/mautic/set_do_not_contact.md)

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