get_finra_short_volume

THE RISK

Low Risk

Why get_finra_short_volume needs a policy

This tool queries and retrieves FINRA short volume information, which is publicly available financial data. It performs a data retrieval operation with no capacity to modify data, execute code, delete records, or commit financial transactions. The blast radius of misuse is minimal—an agent could request excessive queries or incorrect time periods, but cannot cause lasting harm.

From the tool's definition Tool description states 'Get FINRA daily short volume data' — a retrieval operation that fetches publicly available market data.

Documented attack patterns abuse exactly the kind of access get_finra_short_volume gives an agent:

POLICY

How to control get_finra_short_volume

PolicyLayer is an MCP gateway — it sits between your AI agents and IsoFinancial-MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_finra_short_volume:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_finra_short_volume": {}
  }
}

get_finra_short_volume is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register IsoFinancial-MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_finra_short_volume

What does the get_finra_short_volume tool do? +

Get FINRA daily short volume data with ratio calculations. It is categorised as a Read tool in the IsoFinancial-MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_finra_short_volume? +

Register the IsoFinancial- MCP server in PolicyLayer and add a rule for get_finra_short_volume: 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 IsoFinancial-MCP. Nothing to install.

What risk level is get_finra_short_volume? +

get_finra_short_volume is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_finra_short_volume? +

Yes. Add a rate_limit block to the get_finra_short_volume 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.

How do I block get_finra_short_volume completely? +

Set action: deny in the PolicyLayer policy for get_finra_short_volume. 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.

What MCP server provides get_finra_short_volume? +

get_finra_short_volume is provided by the IsoFinancial- MCP server (niels-8/isofinancial-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every IsoFinancial-MCP tool call.

Start from IsoFinancial-MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →