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The platform every builder can depend on.

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01

Build anywhere, stay in control.

HubSpot meets every builder where they work with governance built into every layer so agents can read, write, and act across your context reliably and at scale.

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02

More to build with, less to maintain.

A platform you can finally build a roadmap around with new surfaces and API coverage every six months, predictable support windows, and fewer surprise breaking changes.

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03

AI-assisted building for everyone.

Better work ships without the backlog when AI-powered tooling helps developers move faster on ideas that builders prototype in plain language.

Build with AI

HubSpot assembled a full agentic toolkit for developers. Here's what the stack covers, and what's new.

LP creation demo

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A more powerful, more connected HubSpot MCP

Expanded functionality for HubSpot MCP server now includes custom objects, write capabilities, landing page creation, campaign management, quotes and revenue objects, leads and conversations, content analytics, and more.

agent cli demo

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Turn manual work into autonomous bulk actions with Agent CLI

Automate the repetitive work that runs your business: pipeline scans, account reviews, weekly reports. Set it once, and your agents handle the rest, so the work happens on its own before you even get to your desk.

PRIVATE BETA

Build custom apps with HubSpot context in Lovable

Describe what you need, and Lovable builds you a working, HubSpot-connected app in plain language. Your HubSpot permissions travel with every app, so admins stay in control of who can build, what data they can access, and how it all gets managed.

Build an agent for the work only your team does

Custom agents let you define purpose-built AI agents inside HubSpot, with full control over what they know, what they do, and when they run. If your team has a repeatable workflow that benefits from AI judgment and HubSpot context, this is how you encode it.

Build with AI documentation

Get help finding information in our docs and troubleshooting from the new docs AI assistant. Learn to Build with AI regardless of your technical skill with our brand new content — our single source for understanding all of the AI related HubSpot tools available to you and how to build with them.

App Governance section

Build with confidence

New AI capabilities are only worth adopting if you can control what they touch and trust what they do. This release gives developers and admins the controls that make it safe to put AI to work on real HubSpot context.

Control at the center with governance tools

Every connected app now has a formal owner, a redesigned settings page, and an activity log so nothing goes unmanaged and no app gets orphaned. Agents can never exceed the permissions of the person using them, and every step is reversible.

Predictability as a platform feature with date-based versioning

APIs reach stable status on a known date and stay there. Breaking changes twice a year, 18-month support windows, fewer surprises. Stability you can build a business on.

Least privilege by default with granular scopes

Granular scopes replace broad access permissions with precise, least-privilege equivalents so customers can see exactly what your integration touches. Less friction at install, more trust at scale, and a self-service migration tool makes the switch straightforward.

A new surface for change management, in one view

See your specific migration exposure at a glance: which apps are on legacy APIs, which need to move to the latest Projects framework, and what’s at risk before the next versioning support deadline.

Dev Migration

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Build what's next on HubSpot.

The HubSpot Developer Platform is now on a predictable release cadence, and now is the moment to make sure you're building on the modern stack. If you're already using date-based versioning APIs, Projects-based apps, and Service Keys, you're in good shape. If not, this release opens a 12-month migration window across APIs, app architecture, and private integrations. Not sure where you stand? Checkout the new migrations tab in your developer portal, and stay up to date with the latest developer resources.

API updates section

More from Fall 2026

Here's a few more updates worth knowing. See the full 2026-09 changelog for more details.

Public Beta

Portability

Move HubSpot assets between portals. Workflows, forms, agents, lists, emails, and more. Build once and deploy everywhere — from workflows and forms to agents and lists.
Private Beta

HubSQL API

Query your HubSpot data with standard SQL: filters, joins, aggregations, and calculations, accessible via the HubSQL API and the query_crm_data MCP tool.

Projects Platform Version 2026.09

The latest version of HubSpot’s unified app framework, now with support for user-level apps that enforce individual permissions and data access, rather than broad, portal-wide access.

Conversations API

Create, update, and delete data from HubSpot's Conversations Inbox and Help Desk, including inboxes, channels, threads, and messages.

Price Books API

Create, delete, and update price books, lifecycle operations, such as activate, deactivate, validate, and individual price books.

Teams Public API

Create, rename, delete, and organize teams, as well as manage memberships.

Datasource Ingestion API

Programmatically manage data into HubSpot Data Studio, from both FILE and JSON data types.
Public Beta

Leading Scoring API

Create, manage, and retrieve score configurations and score values for CRM objects.

Public Beta

Contracts API

Create and manage contracts and contract changes programmatically.

Hear from Developers & Builders

Read what our developers & builders have to say about all these new features and more.

Coming Soon

Developers & Builders Product Roadmap

Get a first look at the roadmap that’s driving product updates into 2027.

Dev Platform H2 26 Roadmap

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