create_api · AWS IoT SiteWise MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_api does on AWS IoT SiteWise MCP Server

AI agents use create_api to create or update resources in AWS IoT SiteWise MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AWS IoT SiteWise MCP Server environment.

WHY IT NEEDS A POLICY

Why create_api needs a policy

This tool most likely creates a new API resource in AWS IoT SiteWise, which is a reversible write operation. While it could potentially expose critical infrastructure if misconfigured, there is no evidence it performs destructive, financial, or arbitrary code execution operations.

From the tool's definition Tool name 'create_api' suggests creating an API resource, which is a write operation that creates or modifies infrastructure. The description is empty, reducing confidence.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_api Rate-limited

create_api stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_api": {
      "limits": [
        {
          "counter": "create_api_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches AWS IoT SiteWise MCP Server, so you can run agents against it safely.

FAQ

Questions about create_api

What does the create_api tool do? +

create_api. It is categorised as a Write tool in the AWS IoT SiteWise MCP Server 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_api? +

Register the AWS IoT SiteWise MCP Server MCP server in PolicyLayer and add a rule for create_api: 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 IoT SiteWise MCP Server. Nothing to install.

What risk level is create_api? +

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

Can I rate-limit create_api? +

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

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

create_api is provided by the AWS IoT SiteWise MCP Server MCP server (awslabs.aws-iot-sitewise-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.