AI agents call get_account to retrieve information from Paper 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 account information without side effects. While it accesses financial account data (which could be sensitive), the read-only nature and lack of ability to execute trades, transfer funds, or modify account state places it in the Read category with low severity. The confidence is high due to the clear retrieval-only semantics of the tool.
From the tool's definition Tool name 'get_account' and description 'Get account details by ID' indicate a retrieval operation with no modification of data or execution of transactions.
Documented attack patterns abuse exactly the kind of access get_account gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Paper MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_account:
{
"version": "1",
"default": "deny",
"tools": {
"get_account": {}
}
}get_account is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get account details by ID. It is categorised as a Read tool in the Paper MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Paper MCP Server MCP server in PolicyLayer and add a rule for get_account: 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 Paper MCP Server. Nothing to install.
get_account 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 get_account 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 get_account. 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.
get_account is provided by the Paper MCP Server MCP server (paperinvest/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Paper MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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23 Paper MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.