Fetches realtime quotes for multiple stock symbols (up to 100). Premium endpoint.
AI agents call coreStock_bulkQuotes to retrieve information from MCP Avantage without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves financial data (stock quotes) without creating, modifying, executing, deleting, or moving money. It is a straightforward read operation that queries the Alpha Vantage API for current pricing information. Despite being on a financial data server, the tool itself performs no financial transactions or irreversible actions—it only returns informational data to the user.
From the tool's definition Tool fetches realtime quotes for multiple stock symbols with no modification or execution capability stated. The term 'Fetches' indicates data retrieval only, characteristic of Read operations.
Attacks that exploit this kind of access
Fetches realtime quotes for multiple stock symbols (up to 100). Premium endpoint. It is categorised as a Read tool in the MCP Avantage MCP Server, which means it retrieves data without modifying state.
Register the MCP Avantage MCP server in PolicyLayer and add a rule for coreStock_bulkQuotes: 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 MCP Avantage. Nothing to install.
coreStock_bulkQuotes 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 coreStock_bulkQuotes 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 coreStock_bulkQuotes. 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.
coreStock_bulkQuotes is provided by the MCP Avantage MCP server (missionsquad/mcp-avantage). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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