bcm-pricing-calc

THE RISK

Low Risk

Why bcm-pricing-calc needs a policy

The tool name suggests a pricing calculator (BCM likely refers to AWS Billing and Cost Management), which could be a read/compute operation estimating costs without moving money. However, with no description available, it's impossible to determine with certainty what this tool does. Given the likely nature as a cost estimation tool, it most closely fits 'Read' but could also be 'Financial'.

From the tool's definition Tool name is 'bcm-pricing-calc' and description is empty or uninformative.

Documented attack patterns abuse exactly the kind of access bcm-pricing-calc gives an agent:

POLICY

How to control bcm-pricing-calc

PolicyLayer is an MCP gateway — it sits between your AI agents and AWS Labs postgres MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for bcm-pricing-calc:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bcm-pricing-calc": {
      "limits": [
        {
          "counter": "bcm-pricing-calc_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

bcm-pricing-calc gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register AWS Labs postgres 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 →

Free to start. No card required.

EXPLORE

Related tools and policies

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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 bcm-pricing-calc

What does the bcm-pricing-calc tool do? +

bcm-pricing-calc. It is categorised as a Other tool in the AWS Labs postgres MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on bcm-pricing-calc? +

Register the AWS Labs postgres MCP Server MCP server in PolicyLayer and add a rule for bcm-pricing-calc: 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 AWS Labs postgres MCP Server. Nothing to install.

What risk level is bcm-pricing-calc? +

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

Can I rate-limit bcm-pricing-calc? +

Yes. Add a rate_limit block to the bcm-pricing-calc 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 bcm-pricing-calc completely? +

Set action: deny in the PolicyLayer policy for bcm-pricing-calc. 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 bcm-pricing-calc? +

bcm-pricing-calc is provided by the AWS Labs postgres MCP Server MCP server (awslabs.postgres-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 AWS Labs postgres MCP Server tool call.

Start from AWS Labs postgres MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →