PRIVATE BETA
Build with AI.
Build with confidence.
HubSpot is the builder-ready platform for connecting agents with confidence. New AI tools that make it faster to build on HubSpot, including the platform controls that make what you build safe to ship at scale.
The platform every builder can depend on.
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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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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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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.

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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.

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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.
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.
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Developer Migration tab
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.
Portability
HubSQL API
Projects Platform Version 2026.09
Conversations API
Price Books API
Teams Public API
Datasource Ingestion API
Leading Scoring API
Create, manage, and retrieve score configurations and score values for CRM objects.
Contracts API
Hear from Developers & Builders
Read what our developers & builders have to say about all these new features and more.
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The moment a task spans multiple systems, everything slows down. HubSpot Agent CLI is how we finally connect those dots automatically.
Jon Kohn Meier
RevOps Lead
West Mustic
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AI is most powerful when it’s connected to clean customer data, and HubSpot has become the foundation that allows us to build and scale those capabilities.
James Mattingly Holleman Sr.
Managing Director, Capital Markets
GTIS Partners
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All of that headache of creating agents is no longer on the developer if they’re using the developer platform to put their tool out.
Muhammad Ahmed Cheema
Software Engineer II
Sendoso
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HubSpot Agent CLI delivers more consistent results while consuming fewer tokens, which matters a lot when you’re running automations at scale.
Chad Sideris
Direct of Marketing Technology & Lead Generation
Triage
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HubSpot’s AI connector opens up access to the whole team without requiring everyone to live in the terminal. Other people on our team don’t work in that code-heavy world; now they have the same access without the API key risk.
Danielle Summers
Director of AI Operations & Customer Experience
Soundstripe
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Using the Agent CLI, we consolidated 504 compliance tickets into 155 installer-level parent records in approximately one day, transforming a highly manual process into a streamlined workflow.
Jackie Mula
Principal HubSpot Architect
EnergySage
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269+
new integration points available
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7900+
agents connected via HubSpot MCP server
Developers & Builders Product Roadmap
Get a first look at the roadmap that’s driving product updates into 2027.
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Developers & Builders Product Roadmap