Retrieve a list of recent payments for a specific project.
AI agents call list_payments to retrieve information from PayArk MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries payment history data with no side effects. It is a passive data retrieval operation (Read category). The severity is low because listing past transactions has minimal blast radius—an AI agent cannot cause financial harm, delete data, or execute arbitrary operations through this tool alone. Confidence is high due to clear semantic indicators of read-only behavior.
From the tool's definition Tool name 'list_payments' and description 'Retrieve a list of recent payments' indicate a read-only query operation that fetches historical payment data without modifying, executing operations, or moving money.
Attacks that exploit this kind of access
Retrieve a list of recent payments for a specific project. It is categorised as a Read tool in the PayArk MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PayArk MCP Server MCP server in PolicyLayer and add a rule for list_payments: 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 PayArk MCP Server. Nothing to install.
list_payments is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_payments 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 list_payments. 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.
list_payments is provided by the PayArk MCP Server MCP server (payark-inc/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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