# Hubspot OpenAPI

**URL:** <https://community.hubspot.com/t/hubspot-openapi/84674>\
**Category:** APIs & Integrations\
**Tags:** free\
**Created:** [July 4, 2023, 4:05pm UTC](https://community.hubspot.com/t/hubspot-openapi/84674 "2023-07-04T16:05:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SIvan](https://avatars.discourse-cdn.com/v4/letter/s/e47c2d/32.png) [@SIvan](https://community.hubspot.com/u/SIvan)\
**Post date:** [July 4, 2023, 4:05pm UTC](https://community.hubspot.com/t/hubspot-openapi/84674/1 "2023-07-04T16:05:50Z")

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Hi!

I am a bit new with Hubspot’s api.

I want to know where can I get documnetation of all hubspot OpenAPI references.  
For example:  
[https://api.hubspot.com/api-catalog-public/v1/apis/crm/v3/contacts](https://api.hubspot.com/api-catalog-public/v1/apis/crm/v3/contacts)  
I found this link by mistake and I really want to know if there is somewhere documentation of all the URLS.  
For example in the link above I see that the get operation of contacts returns this object

`CollectionResponseSimplePublicObjectWithAssociationsForwardPaging`

I want to know where can I find the schema of this object.  
Thanks!

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<div class="post-metadata">

**Author:** ![johnelmer](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/johnelmer/32/55984_2.png) [@johnelmer](https://community.hubspot.com/u/johnelmer)\
**Post date:** [July 5, 2023, 1:14am UTC](https://community.hubspot.com/t/hubspot-openapi/84674/2 "2023-07-05T01:14:13Z")

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@SIvan Start here: [2026-03 API reference - HubSpot docs](https://legacydocs.hubspot.com/docs/overview)

Then read here: [2026-03 API reference - HubSpot docs](https://developers.hubspot.com/docs/api/overview)

Then review this: [2026-03 API reference - HubSpot docs](https://developers.hubspot.com/docs/api/developer-guides-resources)