Get comprehensive account information including balance and basic details
AI agents call get_account_info to retrieve information from Open Paper Trading MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and queries account information without modifying, executing, or deleting any data. It is a read-only operation analogous to a GET request. Even though the server context involves financial trading, this particular tool performs no financial transactions, modifications, or irreversible actions—it simply fetches existing account details for visibility.
From the tool's definition Tool name is 'get_account_info' and description states 'Get comprehensive account information including balance and basic details' — pure data retrieval with no side effects.
Documented attack patterns abuse exactly the kind of access get_account_info gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Open Paper Trading MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_account_info:
{
"version": "1",
"default": "deny",
"tools": {
"get_account_info": {}
}
}get_account_info is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get comprehensive account information including balance and basic details. It is categorised as a Read tool in the Open Paper Trading MCP MCP Server, which means it retrieves data without modifying state.
Register the Open Paper Trading MCP server in PolicyLayer and add a rule for get_account_info: 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 Open Paper Trading MCP. Nothing to install.
get_account_info 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_info 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_info. 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_info is provided by the Open Paper Trading MCP server (open-agent-tools/open-paper-trading-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Open Paper Trading MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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44 Open Paper Trading MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.