Send money to a bank account or mobile money wallet via Paystack.
AI agents use paystack_transfer to commit financial operations through Africa Payments MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool directly transfers funds from one account to another, which constitutes a financial transaction that moves money and creates financial obligations. Even with proper authorization, misuse by a compromised or malicious AI agent could result in unauthorized transfers, theft, or fraud.
From the tool's definition Tool name 'paystack_transfer' and description 'Send money to a bank account or mobile money wallet via Paystack' explicitly involve moving money to external accounts.
Attacks that exploit this kind of access
Send money to a bank account or mobile money wallet via Paystack. It is categorised as a Financial tool in the Africa Payments MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Africa Payments MCP server in PolicyLayer and add a rule for paystack_transfer: 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 Africa Payments MCP. Nothing to install.
paystack_transfer 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 paystack_transfer 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 paystack_transfer. 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.
paystack_transfer is provided by the Africa Payments MCP server (kenyaclaw/africa-payments-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.
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