HubSpot CRM MCP Server for LangChain 10 tools — connect in under 2 minutes
LangChain is the leading Python framework for composable LLM applications. Connect HubSpot CRM through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.
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Vinkius supports streamable HTTP and SSE.
import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent
async def main():
# Your Vinkius token. get it at cloud.vinkius.com
async with MultiServerMCPClient({
"hubspot-crm": {
"transport": "streamable_http",
"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
}
}) as client:
tools = client.get_tools()
agent = create_react_agent(
ChatOpenAI(model="gpt-4o"),
tools,
)
response = await agent.ainvoke({
"messages": [{
"role": "user",
"content": "Using HubSpot CRM, show me what tools are available.",
}]
})
print(response["messages"][-1].content)
asyncio.run(main())
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About HubSpot CRM MCP Server
Connect HubSpot CRM to any AI agent — instant access to your full CRM data without switching tabs.
LangChain's ecosystem of 500+ components combines seamlessly with HubSpot CRM through native MCP adapters. Connect 10 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
What you can do
- Contacts — Search, create, and manage contacts
- Companies — Find companies by name or domain
- Deals — Search and create deals with pipeline tracking
- Tickets — Create and search support tickets
- Notes — Create notes attached to any CRM record
- Owners — View all owners and team assignments
- Pipelines — List deal and ticket pipeline stages
The HubSpot CRM MCP Server exposes 10 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect HubSpot CRM to LangChain via MCP
Follow these steps to integrate the HubSpot CRM MCP Server with LangChain.
Install dependencies
Run pip install langchain langchain-mcp-adapters langgraph langchain-openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save the code and run python agent.py
Explore tools
The agent discovers 10 tools from HubSpot CRM via MCP
Why Use LangChain with the HubSpot CRM MCP Server
LangChain provides unique advantages when paired with HubSpot CRM through the Model Context Protocol.
The largest ecosystem of integrations, chains, and agents. combine HubSpot CRM MCP tools with 500+ LangChain components
Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
Memory and conversation persistence let agents maintain context across HubSpot CRM queries for multi-turn workflows
HubSpot CRM + LangChain Use Cases
Practical scenarios where LangChain combined with the HubSpot CRM MCP Server delivers measurable value.
RAG with live data: combine HubSpot CRM tool results with vector store retrievals for answers grounded in both real-time and historical data
Autonomous research agents: LangChain agents query HubSpot CRM, synthesize findings, and generate comprehensive research reports
Multi-tool orchestration: chain HubSpot CRM tools with web scrapers, databases, and calculators in a single agent run
Production monitoring: use LangSmith to trace every HubSpot CRM tool call, measure latency, and optimize your agent's performance
HubSpot CRM MCP Tools for LangChain (10)
These 10 tools become available when you connect HubSpot CRM to LangChain via MCP:
hs_create_company
The name is required. Providing the website domain (e.g., "acme.com") helps HubSpot auto-enrich the company with public data. Industry should match HubSpot industry categories. Returns the created company with its new HubSpot ID. Create a new company record in HubSpot CRM with name, domain, industry, and phone
hs_create_contact
Email is the primary deduplication key — if a contact with the same email already exists, the API will return an error. Provide first name, last name, phone, company name, and lifecycle stage to fully populate the record. Returns the created contact with its new HubSpot ID. Create a new contact in HubSpot CRM with email as the unique identifier, plus name, phone, and company
hs_create_note
The body supports HTML. Notes appear in the timeline of associated records — essential for keeping CRM activity history. Provide contact, company, or deal IDs to link the note. Use to log meeting notes, call summaries, or internal context. Create an engagement note in HubSpot attached to a contact, company, or deal for activity logging
hs_create_task
Tasks appear in the tasks queue and can be assigned to owners. Set priority to HIGH, MEDIUM, or LOW. Due date should be ISO format. Associate with a contact by providing their ID. Use when the user wants to schedule follow-ups, create reminders, or assign action items. Create a follow-up task in HubSpot with subject, due date, priority, and optional contact association
hs_get_associations
For example: objectType="companies", objectId="123", toObjectType="contacts" returns all contacts associated with company 123. Common patterns: company→contacts, contact→deals, deal→contacts, contact→tickets. Use when the user asks "which contacts are at this company?" or "what deals does this contact have?" Get associations between HubSpot CRM objects — e.g., find all contacts linked to a company, or deals linked to a contact
hs_get_contact
Returns full contact data including name, email, phone, company, lifecycle stage, lead status, last activity date, and all custom properties. Use after searching contacts to drill into a specific person for full details. Get the complete details of a specific HubSpot contact by their record ID
hs_search_companies
Returns company name, website domain, industry, annual revenue, employee count, and assigned owner. Use when the user wants to find a specific company, look up organizational details, or check company-level CRM data. Search HubSpot CRM companies by name, domain, or industry to find organizations
hs_search_contacts
Returns first name, last name, email, phone, associated company, lifecycle stage (subscriber/lead/MQL/SQL/opportunity/customer/evangelist), and assigned HubSpot owner. Use when the user wants to find a specific person, check contact details, verify lifecycle stage, or look up who is at a particular company. Search HubSpot CRM contacts by name, email, phone, or company to find people in your database
hs_update_company
Only specified fields are updated. Use when the user wants to update company details, correct industry classification, or change the domain. Update properties of an existing HubSpot company by their record ID
hs_update_contact
Only the fields you provide will be updated — other fields remain unchanged. Use when the user wants to correct contact info, update a phone number, change lifecycle stage, or reassign a contact. Update properties of an existing HubSpot contact by their record ID
Example Prompts for HubSpot CRM in LangChain
Ready-to-use prompts you can give your LangChain agent to start working with HubSpot CRM immediately.
"Search for contacts at Acme Corp"
"Create a deal: Enterprise Package $50,000"
"Show me the deal pipeline stages"
Troubleshooting HubSpot CRM MCP Server with LangChain
Common issues when connecting HubSpot CRM to LangChain through the Vinkius, and how to resolve them.
MultiServerMCPClient not found
pip install langchain-mcp-adaptersHubSpot CRM + LangChain FAQ
Common questions about integrating HubSpot CRM MCP Server with LangChain.
How does LangChain connect to MCP servers?
langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.Which LangChain agent types work with MCP?
Can I trace MCP tool calls in LangSmith?
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Connect HubSpot CRM to LangChain
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.