Get network transactions for a specific cardholder within a date range
AI agents call pex_get_cardholder_network_transactions to retrieve information from PEX 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 historical transaction data for a cardholder within specified dates. It is a pure query operation with no side effects—it does not modify, delete, or execute any operations. While transaction data may be sensitive business information, the read-only nature and lack of destructive or financial impact classify it as Read category with low severity.
From the tool's definition Tool name contains 'get' and description states 'Get network transactions' with retrieval purpose ('for a specific cardholder within a date range'). No creation, modification, deletion, or execution of operations is described.
Attacks that exploit this kind of access
Get network transactions for a specific cardholder within a date range. It is categorised as a Read tool in the PEX MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PEX MCP Server MCP server in PolicyLayer and add a rule for pex_get_cardholder_network_transactions: 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 PEX MCP Server. Nothing to install.
pex_get_cardholder_network_transactions 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 pex_get_cardholder_network_transactions 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 pex_get_cardholder_network_transactions. 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.
pex_get_cardholder_network_transactions is provided by the PEX MCP Server MCP server (pexcard/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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