AI agents call getTransactionsId to retrieve information from Mcp Upbank without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries financial transaction data but performs no modifications, deletions, or financial operations. It only retrieves existing information, which is the defining characteristic of the Read category. Severity is low because unauthorized data access to historical transactions, while sensitive, does not directly move funds or cause irreversible damage compared to more severe operations.
From the tool's definition Tool name 'getTransactionsId' retrieves a single transaction; description states 'Retrieve transaction'. Server description emphasizes 'read-only mode'.
Documented attack patterns abuse exactly the kind of access getTransactionsId gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Upbank, and nothing reaches the server without passing your rules. This is the rule we recommend for getTransactionsId:
{
"version": "1",
"default": "deny",
"tools": {
"getTransactionsId": {}
}
}getTransactionsId is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Retrieve transaction. It is categorised as a Read tool in the Mcp Upbank MCP Server, which means it retrieves data without modifying state.
Register the Mcp Upbank MCP server in PolicyLayer and add a rule for getTransactionsId: 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 Mcp Upbank. Nothing to install.
getTransactionsId 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 getTransactionsId 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 getTransactionsId. 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.
getTransactionsId is provided by the Mcp Upbank MCP server (sirmews/mcp-upbank). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp Upbank, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
13 Mcp Upbank tools catalogued and risk-classified — across an index of 43,000+ MCP servers.