create_charge

Process a payment charge using Stripe

SERVERNcp SOURCE@portel/ncp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-portel-dev-ncp/create-charge.md

WHAT IT DOES

What create_charge does on Ncp

AI agents use create_charge to commit financial operations through Ncp, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why create_charge is rated Critical

This tool directly processes payments through Stripe, moving money and committing financial obligations. Financial operations represent the most severe risk category due to potential for unauthorized transactions, fraud, or substantial monetary loss if misused by an AI agent.

From the tool's definition Tool name 'create_charge' and description 'Process a payment charge using Stripe' explicitly indicate financial transaction processing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_charge safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ncp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_charge, this is the rule to start with:

create_charge Approval-gated

Any call to create_charge is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_charge": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ncp, apply this rule, and every create_charge call is checked against it from then on.

FAQ

Questions about create_charge

What does the create_charge tool do? +

Process a payment charge using Stripe. It is categorised as a Financial tool in the Ncp MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on create_charge? +

Register the Ncp MCP server in PolicyLayer and add a rule for create_charge: 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 Ncp. Nothing to install.

What risk level is create_charge? +

create_charge is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit create_charge? +

Yes. Add a rate_limit block to the create_charge 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_charge completely? +

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

create_charge is provided by the Ncp MCP server (@portel/ncp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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Guides

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