Get the current price for a stock/ETF symbol via Fidelity
AI agents call fidelity_get_quote to retrieve information from Claude Fidelity without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves real-time price information—a read-only query operation. It does not create, modify, delete, execute code, or move money. While the server overall can perform financial transactions (fidelity_place_order), this specific tool is limited to data retrieval. The low severity reflects that misuse would only expose market data already public, with no capability to affect accounts or positions.
From the tool's definition Tool name 'fidelity_get_quote' and description 'Get the current price for a stock/ETF symbol' indicate retrieval of publicly available market data with no modification of account state, positions, or financial holdings.
Attacks that exploit this kind of access
Get the current price for a stock/ETF symbol via Fidelity. It is categorised as a Read tool in the Claude Fidelity MCP Server, which means it retrieves data without modifying state.
Register the Claude Fidelity MCP server in PolicyLayer and add a rule for fidelity_get_quote: 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 Claude Fidelity. Nothing to install.
fidelity_get_quote 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 fidelity_get_quote 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 fidelity_get_quote. 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.
fidelity_get_quote is provided by the Claude Fidelity MCP server (tylerflar/claude-fidelity-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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