create_token · Omise MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_token does on Omise MCP Server

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

WHY IT NEEDS A POLICY

Why create_token needs a policy

This tool creates persistent data (a card token) that will be stored and used in the payment system. While it doesn't delete data or move money directly, it irreversibly commits token creation to the Omise platform, making it a Write operation.

From the tool's definition Tool creates a card token, which modifies the payment system state by generating a new persistent identifier for payment processing.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_token Rate-limited

create_token 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_token": {
      "limits": [
        {
          "counter": "create_token_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 Omise MCP Server, so you can run agents against it safely.

FAQ

Questions about create_token

What does the create_token tool do? +

Create a card token for secure payment processing. It is categorised as a Write tool in the Omise 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_token? +

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

What risk level is create_token? +

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

Can I rate-limit create_token? +

Yes. Add a rate_limit block to the create_token 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_token completely? +

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

create_token is provided by the Omise MCP Server MCP server (jun-omise/omise-mcp-alpha). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.