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Marketing Events Extension API Technical Specs & Reference

Detailed technical specifications for Marketing Events Extension API including version v3 data.
📅 Last updated: April 20, 2026

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Marketing Events Extension API Overview

These APIs allow you to interact with HubSpot’s Marketing Events Extension. It allows you to:

  • Create, Read or update Marketing Event information in HubSpot
  • Specify whether a HubSpot contact has registered, attended or cancelled a registration to a Marketing Event.
  • Specify a URL that can be called to get the details of a Marketing Event. …

Technical Specifications

AttributeDetails
Providerhubapi.com
Current Versionv3
FormatOpenAPI / JSON

Integration Information

Reference for version v3.

Disclaimer: Data sourced from APIs.guru.

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AttributeDetails
Providerazure.com
Current Version2019-08-01
FormatOpenAPI / JSON

Integration Information

Reference for version 2019-08-01.

Disclaimer: Data sourced from APIs.guru.

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API Overview

This document is intended as a detailed reference for the precise behavior of the drchrono API. If this is your first time using the API, start with our tutorial. If you are upgrading from a previous version, take a look at the changelog section.

Authorization

Initial authorization

There are three main steps in the OAuth 2.0 authentication workflow:

API Technical Specs & Reference

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API Overview

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Technical Specifications

AttributeDetails
Providerhubapi.com
Current Versionv1
FormatOpenAPI / JSON

Integration Information

Reference for version v1.

Disclaimer: Data sourced from APIs.guru.