create_mcp_server · Portkey Admin MCP: Risk & Policy

WHAT IT DOES

What create_mcp_server does on Portkey Admin

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

PARAMETERS

Parameter	Type	Required	Description
`name`	string	Yes	Display name for the MCP server
`slug`	string	—	Custom slug. Auto-generated if omitted
`description`	string	—	Description of the MCP server
`mcp_integration_id`	string	Yes	ID or slug of the MCP integration this server belongs to

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why create_mcp_server needs a policy

An AI agent can call create_mcp_server faster than any human can review — one bad instruction and it creates or modifies resources in Portkey Admin by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_mcp_server Rate-limited

create_mcp_server 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_mcp_server": {
      "limits": [
        {
          "counter": "create_mcp_server_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 Portkey Admin, so you can run agents against it safely.

FAQ

Questions about create_mcp_server

What does the create_mcp_server tool do? +

Create an MCP server under an existing integration. Registers the server and returns the new id and slug; use list_mcp_integrations first to find the parent integration, then capabilities or access tools to configure it. It is categorised as a Write tool in the Portkey Admin MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_mcp_server accept? +

create_mcp_server accepts 4 parameters: name, slug, description, mcp_integration_id. Required: name, mcp_integration_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_mcp_server? +

Register the Portkey Admin MCP server in PolicyLayer and add a rule for create_mcp_server: 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 Portkey Admin. Nothing to install.

What risk level is create_mcp_server? +

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

Can I rate-limit create_mcp_server? +

Yes. Add a rate_limit block to the create_mcp_server 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_mcp_server completely? +

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

create_mcp_server is provided by the Portkey Admin MCP server (CodesWhat/portkey-admin-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.