HubSpot Marketing MCP server

Create a powerful Model Context Protocol (MCP) server for HubSpot Marketing Hub to automate email campaigns, landing pages, lead nurturing, and marketing analytics. This integration enables AI agents to manage content, segment audiences, design workflows, and measure campaign performance with enterprise-grade security.

Setting up an MCP server

This article covers the standard steps for creating an MCP server in AI Gateway and connecting it to an AI client. The steps are the same for every integration — application-specific details (API credentials, OAuth endpoints, and scopes) are covered in the individual application pages.

Before you begin

You'll need:

• Access to AI Gateway with permission to create MCP servers
• API credentials for the application you're connecting (see the relevant application page for what to collect)

Create an MCP server

Find the API in the catalog

1. Sign in to AI Gateway and select MCP Servers from the left navigation.
2. Select New MCP Server.
3. Search for the application you want to connect, then select it from the catalog.

Configure the server

1. Enter a Name for your server — something descriptive that identifies both the application and its purpose (for example, "Zendesk Support — Prod").
2. Enter a Description so your team knows what the server is for.
3. Set the Timeout value. 30 seconds works for most APIs; increase to 60 seconds for APIs that return large payloads.
4. Toggle Production mode on if this server will be used in a live workflow.
5. Select Next.

Configure authentication

Enter the authentication details for the application. This varies by service — see the Authentication section of the relevant application page for the specific credentials, OAuth URLs, and scopes to use.

Configure security

1. Set any Rate limits appropriate for your use case and the API's own limits.
2. Enable Logging if you want AI Gateway to record requests and responses for auditing.
3. Select Next.

Deploy

Review the summary, then select Deploy. AI Gateway provisions the server and provides a server URL you'll use when configuring your AI client.

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Connect to an AI client

Once your server is deployed, you'll need to add it to the AI client your team uses. Select your client for setup instructions:

• Claude Desktop
• Claude Code
• Cursor
• VS Code
• Windsurf

Tips

• You can create multiple MCP servers for the same application — for example, a read-only server for reporting agents and a read-write server for automation workflows.
• If you're unsure which OAuth scopes to request, start with the minimum read-only set and add write scopes only when needed. Most application pages include scope recommendations.
• You can edit a server's name, description, timeout, and security settings after deployment without redeploying.

Authentication

HubSpot Marketing uses OAuth 2.0 for secure API access. You'll create an app in HubSpot's developer portal to obtain your Client ID and Client Secret. The integration requires OAuth scopes that grant permissions—for example, marketing-emails to create and send campaigns, automation to manage workflows, content to publish pages and blog posts, forms to create forms and track submissions. HubSpot's OAuth endpoints are https://app.hubspot.com/oauth/authorize for authorization and https://api.hubapi.com/oauth/v1/token for token exchange.

Available tools

These tools enable AI agents to manage the full marketing funnel—from lead generation through nurture and conversion. They handle campaigns, workflows, landing pages, content, and performance reporting.

Tool	Description
List email campaigns	Find campaigns by date range or status
Create email campaign	Design and schedule email to contact list
Update email campaign	Modify campaign content or send time
List workflows	View automation sequences and workflows
Create workflow	Build a new lead nurturing or drip campaign
Update workflow	Modify workflow logic or email delays
List landing pages	Find pages by status or publication date
Create landing page	Build a new page for lead capture or promotion
Update landing page	Modify page content or forms
List forms	Find contact capture forms
Create form	Build a form to collect lead information
Update form	Add fields or change form submission behavior
List smart lists	View saved contact segments
Create smart list	Build a segment based on behavior or properties
List blog posts	Find published articles
Create blog post	Publish a new article to your blog
Update blog post	Edit article content or schedule revision
Export contacts	Download list data for external use

Tips

Create workflows that trigger when contacts join specific lists, guiding them through email sequences tailored to their stage and interests.

Build dynamic lists based on behavior (email opens, form submissions, page visits) so campaigns reach the right audience with relevant messaging.

Automate A/B tests by creating multiple email variations and using workflow branching to send different versions to segments, then analyzing open and click rates.

Publish blog posts and landing pages programmatically on a schedule, so your content calendar runs automatically without daily manual updates.

Build workflows that score leads based on email engagement and content downloads, then promote high-scoring leads to your sales team automatically.