Medium Risk

create_customer

Create a customer or sub-customer. Accepts name parts, contact info, addresses, and hierarchy settings. Use parent_ref to create sub-customers or jobs. Returns customer details and a link to view in QuickBooks.

High parameter count (41 properties)

Part of the Quickbooks MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

quickbooks-mcp Write Risk 2/5

AI agents use create_customer to create or modify resources in Quickbooks. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

Without a policy, an AI agent could call create_customer repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Quickbooks.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

io-github-nyxtoolsdev-quickbooks-mcp-server.yaml
tools:
  create_customer:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Quickbooks policy for all 34 tools.

Tool Name create_customer
Category Write
Risk Level Medium

View all 34 tools →

What does the create_customer tool do? +

Create a customer or sub-customer. Accepts name parts, contact info, addresses, and hierarchy settings. Use parent_ref to create sub-customers or jobs. Returns customer details and a link to view in QuickBooks.. It is categorised as a Write tool in the Quickbooks MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_customer? +

Add a rule in your Intercept YAML policy under the tools section for create_customer. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Quickbooks MCP server.

What risk level is create_customer? +

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

Can I rate-limit create_customer? +

Yes. Add a rate_limit block to the create_customer rule in your Intercept 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 create_customer completely? +

Set action: deny in the Intercept policy for create_customer. 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 create_customer? +

create_customer is provided by the Quickbooks MCP server (quickbooks-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Quickbooks

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
// GET IN TOUCH

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