Get account balances
AI agents call accountBalances to retrieve information from TradeStation MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only reads financial account balance data. While it accesses sensitive financial information, it performs no write, execute, or destructive operations. The risk is low because reading balances cannot directly cause financial harm, though the data itself is sensitive.
From the tool's definition Tool name is 'accountBalances' and description states 'Get account balances' — a pure retrieval operation with no modification, deletion, or execution of commands.
Attacks that exploit this kind of access
Get account balances. It is categorised as a Read tool in the TradeStation MCP Server MCP Server, which means it retrieves data without modifying state.
Register the TradeStation MCP Server MCP server in PolicyLayer and add a rule for accountBalances: 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 TradeStation MCP Server. Nothing to install.
accountBalances 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 accountBalances 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 accountBalances. 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.
accountBalances is provided by the TradeStation MCP Server MCP server (maven81g/tradestation_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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