# Add a contact to a segment

**POST** `/contacts/{contact_id}/segments/{segment_id}`

Base URL: `https://api.resend.com`

Tags: `Contacts`

## Authorization

| Option | Scheme | Type | Sent as | Scopes |
| --- | --- | --- | --- | --- |
| Option 1 | `bearerAuth` | `http` | `Authorization: Bearer <token>` | — |

## Path parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `contact_id` | `string` | Yes | The Contact ID or email address. |
| `segment_id` | `string` | Yes | The Segment ID. |

## Responses

| Status | Description | Media type |
| --- | --- | --- |
| `200` | OK | `application/json` |

### Example response: 200 — OK

```json
{
  "contact_id": "string",
  "object": "contact_segment",
  "segment_id": "string"
}
```

## Related pages

- [API keys](../tags/api-keys.md)
- [Audiences](../tags/audiences.md)
- [Automations](../tags/automations.md)
- [Broadcasts](../tags/broadcasts.md)
- [Cancel the schedule of the e-mail.](../emails-email_id-cancel.md)
- [Contact Properties](../tags/contact-properties.md)
- [Contacts](../tags/contacts.md)
- [Create a broadcast](../broadcasts/post.md)
- [Create a list of contacts](../audiences/post.md)
- [Create a new API key](../api-keys/post.md)

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