Unable to get Contact custom properties via API

Hi, I am trying to create an integration for the company I work for, I have created a developer account and created an APP using OAUTH, I am able to hit Contacts/Deals/Companies endpoints, but the endpoints are not returning the custom properties, I tried specifying the property like this “?property=xyz”, but it didn’t work either.

I verified that the Contact I am using for testing has a value for the property.

Can someone help with this?

Hi @ARubinos ,

You were really close to solving this, but you have to add the properties as plural to the URL, so like this:

https://api.hubapi.com/crm/v3/objects/contacts?limit=10&properties=firstname&properties=lastname&properties=email&properties=custom\_property

Thank you!!!