api_manager_create_api_instance · Anypoint MCP Server MCP

WHAT IT DOES

What api_manager_create_api_instance does on Anypoint MCP Server

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

WHY IT NEEDS A POLICY

Why api_manager_create_api_instance needs a policy

This tool creates a new API instance in MuleSoft's API Manager, which is a reversible operation (the instance can be deleted). The action modifies the API management platform state by adding a new resource, making it a Write-category tool.

From the tool's definition Tool name 'create_api_instance' and description 'Create an API Manager API instance' indicate a write operation that creates a new resource in Anypoint Platform.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

api_manager_create_api_instance Rate-limited

api_manager_create_api_instance 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": {
    "api_manager_create_api_instance": {
      "limits": [
        {
          "counter": "api_manager_create_api_instance_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about api_manager_create_api_instance

What does the api_manager_create_api_instance tool do? +

Create an API Manager API instance. Requires ANYPOINT_MCP_ADVANCED_TOOLS=true. It is categorised as a Write tool in the Anypoint 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 api_manager_create_api_instance? +

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

What risk level is api_manager_create_api_instance? +

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

Can I rate-limit api_manager_create_api_instance? +

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

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

api_manager_create_api_instance is provided by the Anypoint MCP Server MCP server (sravannerella/mulesoft-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.