AI agents use create_payment_method to commit financial operations through Paymongo — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Creating a payment method stores sensitive financial credentials (card data) and links them to payment intents, directly enabling financial transactions. The description explicitly warns to 'Handle card data with care,' indicating sensitive financial data handling. On a payment gateway server, this is a prerequisite step to executing financial operations, making it Financial category.
From the tool's definition 'Create a payment method (e.g. a card) to attach to a payment intent' and context of PayMongo payment gateway server supporting payment intents and payments
Attacks that exploit this kind of access
Create a payment method (e.g. a card) to attach to a payment intent. Handle card data with care. It is categorised as a Financial tool in the Paymongo MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Paymongo MCP server in PolicyLayer and add a rule for create_payment_method: 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 Paymongo. Nothing to install.
create_payment_method 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 create_payment_method 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 create_payment_method. 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.
create_payment_method is provided by the Paymongo MCP server (theyahia/paymongo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →