Get comprehensive stock data including financials, analyst ratings, and calendar events
AI agents call get_stock_data_v2 to retrieve information from StockFlow 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 and queries financial market data without creating, modifying, or deleting any data. It has no side effects beyond fetching publicly available or user-accessible stock information. The blast radius of misuse is minimal—an agent could retrieve excessive data or spam requests, but cannot cause financial transactions, data loss, or system damage.
From the tool's definition Tool name 'get_stock_data_v2' and description 'Get comprehensive stock data including financials, analyst ratings, and calendar events' indicate data retrieval without modification.
Documented attack patterns abuse exactly the kind of access get_stock_data_v2 gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and StockFlow MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_stock_data_v2:
{
"version": "1",
"default": "deny",
"tools": {
"get_stock_data_v2": {}
}
}get_stock_data_v2 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 stock data including financials, analyst ratings, and calendar events. It is categorised as a Read tool in the StockFlow MCP Server MCP Server, which means it retrieves data without modifying state.
Register the StockFlow MCP Server MCP server in PolicyLayer and add a rule for get_stock_data_v2: 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 StockFlow MCP Server. Nothing to install.
get_stock_data_v2 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_stock_data_v2 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_stock_data_v2. 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_stock_data_v2 is provided by the StockFlow MCP Server MCP server (twolven/mcp-stockflow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from StockFlow MCP Server, 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.
3 StockFlow MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.