What This Update Actually Is
HubSpot added four new MCP server connections for Breeze Agents: G2, Linear, Gong, and Amplitude. MCP stands for Model Context Protocol, an open standard that lets AI agents read data from and take actions inside external tools without writing custom API code.
These four join the existing roster of supported MCP servers, which already includes Notion, Atlassian, Asana, and Zapier. Each connection lives inside Breeze Studio and is configured on a cloned agent. Important caveat: MCP server support is only available inside Breeze Studio agents right now. The Prospecting Agent and Breeze Assistant don't support this yet.
Here's what each new connector actually does:
- G2 MCP: surfaces real-time software reviews, ratings, and competitive intelligence from the largest B2B software marketplace so your team can research tools and benchmark competitors without leaving HubSpot.
- Linear MCP: creates, updates, assigns, and manages issues, projects, and sprints using plain-language prompts so engineering and product teams can move faster without switching apps.
- Gong MCP: queries sales call recordings and transcripts so your agents can flag deal risks, surface competitive mentions, and pull coaching insights directly from your revenue intelligence data.
- Amplitude MCP: answers complex product analytics questions about user behavior, A/B test results, and feature flag performance through natural language so your team skips the dashboard-digging.
Why HubSpot Shipped This
Breeze Agents are only as useful as the data they can see. Before MCP server support, an agent inside HubSpot could read your CRM, your contacts, your deals. That's it. The moment a rep needed context from a Gong call or a product team needed to check Amplitude results, they had to leave HubSpot and go hunting.
That context-switching is where deals stall, handoffs break, and decisions slow down. Humans on your team spend real time copying data between tools that should already be talking to each other.
MCP changes that equation. Instead of building a custom integration for every tool in your stack, you connect an MCP server once and your Breeze Agent can start reading and acting in that tool immediately. HubSpot is betting that AI agents are most valuable when they're connected across your entire workflow, not just the data that lives inside the CRM.
How to Use It Step by Step
Most of the new connectors use an OAuth-based flow. Here's the full process pulled straight from HubSpot's knowledge base:
- Navigate to Breeze > Breeze Studio in your HubSpot account.
- Click the Agents tab, then click the name of the agent you want to extend.
- Click Configure, then click the menu icon in the top right and select Clone. You must work on a cloned agent, not the original.
- Select your cloned agent, go back into Configure, and click Add Tool inside the "What this agent can access" section.
- In the right panel, click the MCP Servers tab.
- Hover over the MCP server you want (G2, Linear, Gong, or Amplitude), then click Connect and Add.
- Follow the on-screen OAuth prompts to authorize the connection with the external tool.
You'll need Breeze Studio permissions to create and customize agents. Authentication steps vary slightly per MCP server, so check the documentation for each tool you're connecting. Once connected, your cloned agent can accept plain-language prompts that reference data from that external tool.
What It Touches in Your HubSpot Strategy
This update sits at the intersection of RevOps, sales intelligence, and product-led growth. It's not a single-team update. It ripples across your whole revenue org.
For sales teams, connecting Gong means your agents can surface deal risks from call transcripts without a rep having to search Gong manually. Pair that with CRM context already inside HubSpot and you've got an agent that understands the full deal picture. We've seen this pattern across portals where Gong data was sitting completely siloed, never influencing pipeline reviews.
For product and engineering teams, the Linear connection means sprint management, issue creation, and project updates can be triggered by plain-language prompts inside HubSpot. A customer service workflow can now automatically generate a Linear ticket from a support trend without anyone writing a Zap or a webhook.
Key Takeaway
MCP servers don't replace your tools. They give your Breeze Agents permission to see and act inside them. That means your existing tool investments get smarter, not replaced.
For go-to-market strategy, the G2 connection is genuinely useful. Real-time competitor reviews and ratings pulled directly into an agent prompt means your team can research competitive positioning without bouncing between G2, a spreadsheet, and a Slack thread.
The Amplitude connection is the one product-led companies will care about most. Asking plain-language questions about feature adoption or A/B test performance inside HubSpot, rather than logging into Amplitude and building a chart, removes a lot of friction from data-driven decisions.
This update pairs naturally with the Data Agent's CRM-wide query expansion. That update lets humans ask questions across the full CRM. This update lets those same agents reach outside the CRM into your most important third-party tools. Together, they start to look like a genuinely connected intelligence layer.
Key Takeaway
If your team is already using Gong, Linear, G2, or Amplitude, this update costs you nothing extra. You're just unlocking data that's already paid for.
If you want broader context on how all the April 2026 Breeze updates connect, the April 2026 Breeze roundup pulls it all together and shows the bigger pattern.
Who Should Care Most
Not every team needs all four connectors. Here's how to think about it by role:
- Revenue Operations leaders who want deal risk signals from Gong surfaced automatically inside HubSpot pipeline reviews.
- Sales managers who coach reps using Gong recordings and want those insights connected to CRM activity, not siloed in a separate tool.
- Product and engineering teams at companies where HubSpot is the system of record for customer feedback but Linear is where the work actually happens.
- Competitive intelligence and product marketing humans who spend time in G2 and want to pull those insights into research or battle card workflows without copy-pasting.
- Growth and product-led teams at SaaS companies using Amplitude to track feature adoption who want to query that data in natural language alongside CRM records.
This is available across almost every HubSpot hub and tier from Starter up, so the barrier to try it is low. If your company uses any of these four tools today, it's worth spending 20 minutes connecting one.
George's Take
I've been inside a lot of HubSpot portals over the years, and one pattern shows up constantly: companies invest in great tools, then let those tools sit in separate silos while their humans manually carry data between them. That's not a people problem, it's a systems problem. What excites me about this MCP expansion isn't the individual connectors, it's what it represents: HubSpot is building toward a world where your agents have enough context to actually help, not just respond. When a Breeze Agent can see your Gong call data and your CRM deal stage at the same time, it stops being a chatbot and starts being a genuine thinking partner for your revenue team.
“A Breeze Agent that can only see your CRM is like hiring a brilliant analyst and then blocking them from half your data. MCP is how you finally let them do their job.”
If you're still figuring out how Breeze Agents fit into your overall strategy, it helps to see them in action. The Customer Agent lead qualification update is a great example of what these agents look like when they're properly configured and connected to real workflows.
The biggest risk here is the same risk we see with most HubSpot features: humans connect the tool, feel good about it, and never build a real use case around it. If you want your MCP connections to actually change how your team works, you need a plan before you click Connect. If you're not sure where to start, our team at Sidekick helps growing companies turn HubSpot features into working systems every week. Read about the most common HubSpot setup mistakes to make sure you're building on solid ground, or book a strategy call with us and we'll map out exactly how your team should approach this.
Frequently Asked Questions
What is an MCP server in HubSpot Breeze?
MCP stands for Model Context Protocol, an open standard that lets HubSpot Breeze Agents read data from and take actions inside external tools without custom API code. HubSpot's MCP Client connects agents in Breeze Studio to supported apps like G2, Linear, Gong, and Amplitude using a standard OAuth or tokenized URL flow.
Do I need to write code to connect Breeze Agents to Gong or Linear?
No. The MCP server connections inside Breeze Studio use an OAuth-based flow for most supported tools, including Gong and Linear. You clone your existing agent, add the MCP server as a tool, and authorize the connection through on-screen prompts. No code or custom integrations are required.
Which HubSpot plans support MCP server connections for Breeze Agents?
MCP server connections are available across nearly all HubSpot hubs and tiers, including Starter, Professional, and Enterprise plans for Marketing Hub, Sales Hub, Service Hub, Content Hub, Data Hub, Commerce Hub, and Smart CRM. Breeze Studio access and the relevant permissions are required.
Can I connect Gong to the HubSpot Prospecting Agent using MCP?
Not yet. As of April 2026, third-party MCP server support is only available for Breeze Agents inside Breeze Studio. The Prospecting Agent and Breeze Assistant do not support MCP server connections at this time. HubSpot has said they're exploring additional surface support for a future release.
What can the G2 MCP connection do inside HubSpot?
The G2 MCP connector lets your Breeze Agent surface real-time software reviews, ratings, and competitor information from G2 directly inside HubSpot. Your team can use natural language to research tools, compare competitors, and pull market intelligence without leaving their HubSpot workflow.
How does the Amplitude MCP connection work with Breeze Agents?
The Amplitude MCP connection lets your Breeze Agent answer natural language questions about your product analytics data, including user behavior, A/B test results, and feature flag performance. Instead of logging into Amplitude and building charts manually, your agent pulls the answers directly and presents them inside HubSpot.
