HubSpot MCP

HubSpot MCP: ask Claude or ChatGPT about your HubSpot deals and contacts.

Connect HubSpot to Mammoth, then add Mammoth to Claude or ChatGPT. Ask about deals won, new contacts by source and deal size by owner in plain words. Mammoth calculates the answer, so the numbers are exact.

Try free How to connect

HubSpotYour data
MammothCleans and calculates
Your AI assistantClaude, ChatGPT, VS Code

Your two options

Two ways to connect HubSpot to your AI assistant

Mammoth answers questions about HubSpot and your other data. HubSpot's own server works inside HubSpot. You can add both to the same assistant.

HubSpotMammoth

Your assistant

Option 1

Mammoth

Ask about HubSpot and your other data. Mammoth calculates the answer, so the numbers are exact. Included on every plan.

You ask

“How many deals did we win each month, and what were they worth?”

Try free How to connect

HubSpotYour assistant

Option 2

HubSpot's own server

Reads and writes live CRM records. Needs a connector created in HubSpot first.

You ask

“Add a note to the Acme deal saying we sent the proposal.”

How to set up HubSpot's server

Option 1 · Mammoth

What you can ask about your HubSpot deals and contacts

Pick a question to see what your assistant gets back.

Claude

ChatGPT

VS CodeMammoth connected

HubSpot dealsCounted and totalled won deals by monthCalculated by Mammoth

Month	Won	Value ($)
Aug	23	184,000
Sep	29	231,500
Oct	19	152,800

Shown on sample data. Your questions run on your own data.

Ask about HubSpot and your other data together

Connect HubSpot and any of Mammoth’s 100+ other sources, like Google Ads, Jira or Salesforce. Join them once in Mammoth, and your assistant can answer questions that cover all of them.

See all 100+ sources

+100 more

Example: HubSpot with Google Ads

What did each Google Ads campaign cost per deal won?

Google Ads holds the spend and HubSpot holds the won deals. Mammoth matches them on the campaign.

Option 1 · Mammoth

Set up HubSpot with Mammoth in three steps

Step 1
Connect HubSpot to Mammoth
Choose HubSpot from Mammoth's connectors and sign in. Then pick the data you want.
https://mcp.mammoth.io/mcp
Step 2
Add Mammoth to your assistant
Paste this address into Claude, ChatGPT or VS Code, then sign in with your Mammoth account.
Step 3
Ask your question
Ask in Claude or ChatGPT, in plain words. Mammoth works out the numbers and your assistant replies with the answer.

What Mammoth reads from HubSpot

Mammoth connects with your HubSpot sign-in and can read contacts, companies, deals, tickets, owners, lists, forms and marketing events. You pick what to bring in.

Start free and connect HubSpot14-day Pro trial · No credit card

Step-by-step setup for each assistant is in our MCP docs.

Want a dashboard too? Start from the free HubSpot dashboard template.

Option 2 · HubSpot's own server

How to set up the official HubSpot MCP server

HubSpot's MCP server lets your assistant read and change CRM records, such as contacts, companies, deals and tickets. An account admin sets it up first.

Step 1
Create a connector in HubSpot
Go to Development, then MCP Connectors. HubSpot gives you a client ID and secret.
$https://mcp.hubspot.com
Step 2
Add the server
Use an AI assistant that supports OAuth with PKCE, with those credentials.
Step 3
Approve access
Choose the HubSpot account and approve.

HubSpot: MCP server · checked 26 October 2026

Common questions about HubSpot MCP

Is there an official HubSpot MCP server?

Yes. HubSpot's MCP server lets your assistant read and change CRM records, such as contacts, companies, deals and tickets. An account admin sets it up first. Use it to work inside HubSpot. Use Mammoth to ask questions across HubSpot and your other data.

How does my assistant get to my HubSpot data?

You connect HubSpot to Mammoth once. Mammoth keeps a copy of the data and updates it on demand or on a schedule. Your assistant asks Mammoth, not HubSpot.

Are the numbers right?

Yes. Mammoth calculates totals, counts and averages itself and gives your assistant the result. The AI model doesn't add up the rows.

Which AI assistants work with it?

Claude on the web, Claude Desktop and Claude Code, ChatGPT, and VS Code. Cursor can't sign in yet, so use the Mammoth CLI there.

What does it cost?

The MCP server is on every Mammoth plan, including Free. Connecting HubSpot needs a paid plan.

Do I paste a password or API key into the chat?

No. You connect HubSpot inside Mammoth and sign in to Mammoth from your assistant. No password passes through the model.

Can my assistant change things by mistake?

Every tool is labelled as read-only, a change you can undo, or one that deletes or sends data out. You can set your assistant to ask you before it uses anything that isn't read-only.