crm_batch_create_contacts · HubSpot MCP Server MCP

WHAT IT DOES

What crm_batch_create_contacts does on HubSpot MCP Server

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

WHY IT NEEDS A POLICY

Why crm_batch_create_contacts needs a policy

This tool creates new contact records in HubSpot's CRM, which is a reversible Write operation. It does not delete, execute code, or move money. However, batch creation increases the blast radius compared to single-record creation—an agent could generate large numbers of spam or duplicate contacts, causing operational disruption and data quality issues.

From the tool's definition Tool name 'crm_batch_create_contacts' and description 'Create multiple contacts in a single request' explicitly indicate data creation. The batch operation capability amplifies impact by allowing creation of many records simultaneously.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

crm_batch_create_contacts Rate-limited

crm_batch_create_contacts 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_batch_create_contacts": {
      "limits": [
        {
          "counter": "crm_batch_create_contacts_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches HubSpot MCP Server, so you can run agents against it safely.

FAQ

Questions about crm_batch_create_contacts

What does the crm_batch_create_contacts tool do? +

Create multiple contacts in a single request. It is categorised as a Write tool in the HubSpot MCP Server 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_batch_create_contacts? +

Register the HubSpot MCP Server MCP server in PolicyLayer and add a rule for crm_batch_create_contacts: 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 Server. Nothing to install.

What risk level is crm_batch_create_contacts? +

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

Can I rate-limit crm_batch_create_contacts? +

Yes. Add a rate_limit block to the crm_batch_create_contacts 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_batch_create_contacts completely? +

Set action: deny in the PolicyLayer policy for crm_batch_create_contacts. 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_batch_create_contacts? +

crm_batch_create_contacts is provided by the HubSpot MCP Server MCP server (kozo93/hubspot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.