Refund one or more previously charged transactions. The refund is processed through the original payment gateway. This action cannot be undone.
AI agents use refund_transaction to commit financial operations through Ontraport MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool commits financial obligations by processing refunds through payment gateways. Although refunds could theoretically be reversed by issuing a new charge, the tool itself performs an irreversible money movement. Financial category takes priority over Destructive per the severity hierarchy.
From the tool's definition 'Refund one or more previously charged transactions' and 'This action cannot be undone' — the tool moves money (refund/reversal of payment), is irreversible, and operates through payment gateways, directly committing financial obligations.
Attacks that exploit this kind of access
Refund one or more previously charged transactions. The refund is processed through the original payment gateway. This action cannot be undone. It is categorised as a Financial tool in the Ontraport MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Ontraport MCP Server MCP server in PolicyLayer and add a rule for refund_transaction: 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 Ontraport MCP Server. Nothing to install.
refund_transaction 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 refund_transaction 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 refund_transaction. 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.
refund_transaction is provided by the Ontraport MCP Server MCP server (landonray/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.
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