> For the complete documentation index, see [llms.txt](https://docs.apono.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apono.io/api-reference/discovering-identity-attribute-types.md).

# Discovering Identity Attribute Types

Identity attribute types define how Apono identifies and evaluates identities in access flows.\
These types represent built-in identities (like users or groups) or custom attributes integrated from context integrations.

The available types vary depending on your account configuration and connected identity sources.\
To view the exact list of supported types, run the discovery script below.

```python
import os
import requests

API_URL = "https://api.apono.io/api/admin/v1/attributes"

def get_auth_headers() -> dict:
    token = os.getenv("APONO_TOKEN")
    if not token:
        raise RuntimeError("Missing APONO_TOKEN environment variable")
    return {
        "Authorization": f"Bearer {token}",
        "Accept": "*/*"
    }

def fetch_unique_attribute_types() -> set:
    headers = get_auth_headers()
    attribute_types = set()
    next_page_token = None

    while True:
        params = {}
        if next_page_token:
            params["page_token"] = next_page_token
        response = requests.get(API_URL, headers=headers, params=params)
        response.raise_for_status()
        data = response.json()

        for attribute_item in data.get("items", []):
            attr_type = attribute_item.get("type")
            if attr_type:
                attribute_types.add(attr_type)

        next_page_token = data.get("pagination", {}).get("next_page_token")
        if not next_page_token:
            break

    return attribute_types

if __name__ == "__main__":
    print(sorted(fetch_unique_attribute_types()))
```


---

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