Create/provision a service account
AI agents invoke whmcs_module_create to trigger actions in Whmcs. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
Provisioning a service account triggers external operations (module calls, account creation on remote systems). This goes beyond a simple write — it executes provisioning workflows that may spin up hosting accounts, databases, or other infrastructure. The blast radius is high because misuse could provision unauthorized services or incur resource/cost commitments.
From the tool's definition Create/provision a service account
Documented attack patterns abuse exactly the kind of access whmcs_module_create gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Whmcs, and nothing reaches the server without passing your rules. This is the rule we recommend for whmcs_module_create:
{
"version": "1",
"default": "deny",
"tools": {
"whmcs_module_create": {
"limits": [
{
"counter": "whmcs_module_create_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}whmcs_module_create stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
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Create/provision a service account. It is categorised as a Execute tool in the Whmcs MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Whmcs MCP server in PolicyLayer and add a rule for whmcs_module_create: 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 Whmcs. Nothing to install.
whmcs_module_create is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the whmcs_module_create 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.
Set action: deny in the PolicyLayer policy for whmcs_module_create. 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.
whmcs_module_create is provided by the Whmcs MCP server (scarecr0w12/whmcs-mcp-tool). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Whmcs, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
62 Whmcs tools catalogued and risk-classified — across an index of 43,000+ MCP servers.