HubSpot CMS Posts API
vNext REST API for Public Blog services
HubSpot CMS Posts API is one of 144 APIs that HubSpot publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
This API exposes 692 JSON Schema definitions.
Tagged areas include CMS and Posts. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, code examples, and 692 JSON Schemas.
This API exposes 30 operations across 26 paths, organized into 4 resource areas, and defines 43 schemas. It is described by OpenAPI 3.0.1, at version 2026-09.
Requests are made against a single base URL, https://api.hubapi.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 4
HubSpot CMS Posts API declares
4 security schemes
for authenticating requests.
An API key is passed in the query as hapikey (developer_hapikey).
It supports OAuth 2.0 (oauth2) using the authorizationCode flow, exposing 1 scope.
An API key is passed in the header as private-app (private_apps).
An API key is passed in the header as private-app-legacy (private_apps_legacy).
Paths & Operations 30
Across 26 paths, the API surfaces 30 operations — 1 DELETE, 11 GET, 2 PATCH, 15 POST, 1 PUT. They span 4 resource areas: Basic, Batch, Multi-language, Revisions. Each is listed below with its method, path, parameters, and response codes.
Schemas 43
The contract defines 43 schemas that model the data the API accepts and returns. The most detailed are BlogPost (62 properties), ContentLanguageVariation (15 properties), LayoutSection (13 properties), BatchResponseBlogPostWithErrors (8 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from HubSpot 12
Other APIs HubSpot publishes across the network.
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