AI agents use create-checkout-link to commit financial operations through Paystack — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool creates a payment checkout link that initiates a financial transaction flow, directly committing a customer to pay a specified amount via Paystack. Even though it generates a link rather than directly moving money, it is the gateway to financial obligations and is part of a payment processing workflow. Misuse could result in fraudulent or unauthorized payment requests being sent to customers.
From the tool's definition "Generate a Paystack payment link for a customer to pay a specified amount"
Attacks that exploit this kind of access
Generate a Paystack payment link for a customer to pay a specified amount. It is categorised as a Financial tool in the Paystack MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Paystack MCP server in PolicyLayer and add a rule for create-checkout-link: 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 Paystack. Nothing to install.
create-checkout-link 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-checkout-link 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-checkout-link. 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-checkout-link is provided by the Paystack MCP server (johnnieemmanuel/paystack-mcp-server). 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 →