crm_create_contact

Create a new contact with validated properties

SERVERHubSpot MCP SOURCEblacksand-software/hubspot-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/blacksand-software-hubspot-mcp/crm-create-contact.md

WHAT IT DOES

What crm_create_contact does on HubSpot MCP

AI agents use crm_create_contact to create or update resources in HubSpot MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your HubSpot MCP environment.

RISK

Why crm_create_contact is rated Medium

This tool creates new data in HubSpot's contact database. While creation is reversible (contacts can be deleted), it modifies the CRM state and introduces new records that may affect business processes, customer communications, and data integrity. The tool does not execute arbitrary code, move money, or permanently destroy data, so Write is the appropriate category.

From the tool's definition Tool name 'crm_create_contact' explicitly indicates creation of a new contact resource. Description states 'Create a new contact with validated properties', confirming irreversible addition of data to the CRM system.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs crm_create_contact safely

PolicyLayer is an MCP gateway: it sits between your AI agents and HubSpot MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For crm_create_contact, this is the rule to start with:

crm_create_contact Rate-limited

crm_create_contact stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "crm_create_contact": {
      "limits": [
        {
          "counter": "crm_create_contact_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect HubSpot MCP, apply this rule, and every crm_create_contact call is checked against it from then on.

FAQ

Questions about crm_create_contact

What does the crm_create_contact tool do? +

Create a new contact with validated properties. It is categorised as a Write tool in the HubSpot MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on crm_create_contact? +

Register the HubSpot MCP server in PolicyLayer and add a rule for crm_create_contact: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches HubSpot MCP. Nothing to install.

What risk level is crm_create_contact? +

crm_create_contact is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit crm_create_contact? +

Yes. Add a rate_limit block to the crm_create_contact rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block crm_create_contact completely? +

Set action: deny in the PolicyLayer policy for crm_create_contact. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides crm_create_contact? +

crm_create_contact is provided by the HubSpot MCP server (blacksand-software/hubspot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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