> For the complete documentation index, see [llms.txt](https://docs.bird.com/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bird.com/api/contacts-api/api-reference/manage-contact-identifiers/create-contact-identifier.md).

# Create contact identifier

{% openapi src="<https://global--openapi-specs--151603429280--use1.s3.us-east-1.amazonaws.com/joined-specs/openapi.yml>" path="/workspaces/{workspaceId}/contacts/{contactId}/identifiers" method="post" %}
<https://global--openapi-specs--151603429280--use1.s3.us-east-1.amazonaws.com/joined-specs/openapi.yml>
{% endopenapi %}

## Examples

Let's establish some of our data that will be used in the following examples:

* **Workspace ID**: a1405560-c8d3-4b1a-877d-3f449ad95352
* **AccessKey:** abcd
* **Contact ID**: 12bd0e40-9361-4e32-8b26-99b4ab7eae09

### Create an identifier without properties

In this example, we're creating an identifier without custom properties.

{% tabs %}
{% tab title="Request" %}

```bash
curl -X POST "https://api.bird.com/workspaces/a1405560-c8d3-4b1a-877d-3f449ad95352/contacts/12bd0e40-9361-4e32-8b26-99b4ab7eae09/identifiers" \
-H "Content-Type: application/json" \
-H "Authorization: AccessKey abcd" \
-d '{
  "key": "emailaddress",
  "value": "contacts@bird.com"
}'
```

{% endtab %}

{% tab title="Response (200 OK)" %}

```json
{
  "contactId": "12bd0e40-9361-4e32-8b26-99b4ab7eae09",
  "key": "emailaddress", 
  "value": "contacts@bird.com",
  "properties": {
    "isGmail": true
  },
  "createdAt": "2024-11-26T15:00:00.000Z"
}
```

{% endtab %}
{% endtabs %}

### Create an identifier with properties

In this example, we're creating an identifier with custom properties.

{% tabs %}
{% tab title="Request" %}

<pre class="language-bash"><code class="lang-bash">curl -X POST "https://api.bird.com/workspaces/a1405560-c8d3-4b1a-877d-3f449ad95352/contacts/12bd0e40-9361-4e32-8b26-99b4ab7eae09/identifiers" \
-H "Content-Type: application/json" \
-H "Authorization: AccessKey abcd" \
<strong>-d '{
</strong>  "key": "emailaddress",
  "value": "contacts@bird.com",
  "properties": {
    "isGmail": true
  }
}'
</code></pre>

{% endtab %}

{% tab title="Response (200 OK)" %}

```json
{
  "contactId": "12bd0e40-9361-4e32-8b26-99b4ab7eae09",
  "key": "emailaddress", 
  "value": "contacts@bird.com",
  "properties": {
    "isGmail": true
  },
  "createdAt": "2024-11-26T15:00:00.000Z"
}
```

{% endtab %}
{% endtabs %}


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