AI agents call list_api_tokens to retrieve information from cPanel MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves existing cPanel API tokens, which are sensitive authentication credentials that could grant significant access if exposed to an attacker. While the action itself is read-only (no data modification), the severity is elevated due to the sensitivity of the data being exposed—API tokens are equivalent to passwords and can be used to authenticate and authorize actions on the cPanel account.
From the tool's definition Tool name 'list_api_tokens' and description 'List all cPanel API tokens for the account' indicate retrieval of sensitive authentication credentials without modification.
Documented attack patterns abuse exactly the kind of access list_api_tokens gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and cPanel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_api_tokens:
{
"version": "1",
"default": "deny",
"tools": {
"list_api_tokens": {}
}
}list_api_tokens is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all cPanel API tokens for the account. It is categorised as a Read tool in the cPanel MCP Server MCP Server, which means it retrieves data without modifying state.
Register the cPanel MCP Server MCP server in PolicyLayer and add a rule for list_api_tokens: 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 cPanel MCP Server. Nothing to install.
list_api_tokens is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_api_tokens 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 list_api_tokens. 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.
list_api_tokens is provided by the cPanel MCP Server MCP server (0xhayd3n/cpanel-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from cPanel MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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164 cPanel MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.