CreateTokenWithIAM

THE RISK

Low Risk

Why CreateTokenWithIAM needs a policy

The tool name suggests it creates an authentication token using IAM (Identity and Access Management). This is likely a Write operation (creating a token/credential), but it could also be Execute (triggering an auth flow) or have security implications. Without a description, it's unclear if tokens are short-lived or long-lived, scoped or broad. The empty description significantly reduces confidence.

From the tool's definition Tool name: CreateTokenWithIAM — description is empty and uninformative

Documented attack patterns abuse exactly the kind of access CreateTokenWithIAM gives an agent:

POLICY

How to control CreateTokenWithIAM

PolicyLayer is an MCP gateway — it sits between your AI agents and Prometheus MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for CreateTokenWithIAM:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "CreateTokenWithIAM": {
      "limits": [
        {
          "counter": "createtokenwithiam_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

CreateTokenWithIAM gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register Prometheus MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

SET A RULE FOR THIS TOOL →

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about CreateTokenWithIAM

What does the CreateTokenWithIAM tool do? +

CreateTokenWithIAM. It is categorised as a Other tool in the Prometheus MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on CreateTokenWithIAM? +

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

What risk level is CreateTokenWithIAM? +

CreateTokenWithIAM is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit CreateTokenWithIAM? +

Yes. Add a rate_limit block to the CreateTokenWithIAM 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 CreateTokenWithIAM completely? +

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

CreateTokenWithIAM is provided by the Prometheus MCP Server MCP server (awslabs.prometheus-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Prometheus MCP Server tool call.

Start from Prometheus 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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