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GET
/
v1
/
contacts
/
customFields
List custom fields
curl --request GET \
  --url https://app.loops.so/api/v1/contacts/customFields \
  --header 'Authorization: Bearer <token>'
[
  {
    "key": "favoriteColor",
    "label": "Favorite Color",
    "type": "string"
  },
  {
    "key": "plan",
    "label": "Plan",
    "type": "string"
  }
]

Documentation Index

Fetch the complete documentation index at: https://loops.so/docs/llms.txt

Use this file to discover all available pages before exploring further.

This endpoint is now deprecated in favor of List contact properties.

​
Request

No parameters.

​
Response

This endpoint will return a list of custom field objects. If your account has no custom fields, an empty list will be returned.
​
Custom fields
array
[
  {
    "key": "favoriteColor",
    "label": "Favorite Color",
    "type": "string"
  },
  {
    "key": "plan",
    "label": "Plan",
    "type": "string"
  }
]
Last modified on October 8, 2025