Creates a refund for a charge or payment intent, supporting partial refunds and metadata.
AI agents use stripe_create_refund to commit financial operations through Stripe Fraud MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Refunds are irreversible financial transactions that commit real money movement. An AI agent misusing this tool could refund arbitrary amounts to wrong customers, causing direct financial loss to the business. This is the most severe risk category. The tool's core purpose is financial transaction execution, and the blast radius is direct monetary damage.
From the tool's definition Tool explicitly 'Creates a refund for a charge or payment intent' and server description states it 'allowing users to assess payment risk, create refunds, and access any Stripe API endpoint.' Refunds directly move money back to customers, committing financial…
Attacks that exploit this kind of access
Creates a refund for a charge or payment intent, supporting partial refunds and metadata. It is categorised as a Financial tool in the Stripe Fraud MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Stripe Fraud MCP server in PolicyLayer and add a rule for stripe_create_refund: 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 Stripe Fraud MCP. Nothing to install.
stripe_create_refund is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the stripe_create_refund 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.
Set action: deny in the PolicyLayer policy for stripe_create_refund. 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.
stripe_create_refund is provided by the Stripe Fraud MCP server (keithah/stripe-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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