Get the URL for downloading files from the Object Store.
AI agents call read_object_store_file_download_url to retrieve information from QuantConnect without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves a download URL from the Object Store, which is a read-only retrieval operation with no side effects. It does not modify, execute, or delete data. The worst-case misuse would be unauthorized data access, but the blast radius is limited to file retrieval permissions.
From the tool's definition Tool name includes 'read' and 'download_url' and description states 'Get the URL for downloading files' - purely retrieves data without modification or execution.
Documented attack patterns abuse exactly the kind of access read_object_store_file_download_url gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and QuantConnect, and nothing reaches the server without passing your rules. This is the rule we recommend for read_object_store_file_download_url:
{
"version": "1",
"default": "deny",
"tools": {
"read_object_store_file_download_url": {}
}
}read_object_store_file_download_url is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the URL for downloading files from the Object Store. It is categorised as a Read tool in the QuantConnect MCP Server, which means it retrieves data without modifying state.
Register the QuantConnect MCP server in PolicyLayer and add a rule for read_object_store_file_download_url: 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 QuantConnect. Nothing to install.
read_object_store_file_download_url 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 read_object_store_file_download_url 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 read_object_store_file_download_url. 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.
read_object_store_file_download_url is provided by the QuantConnect MCP server (quantconnect/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 64 QuantConnect tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
64 QuantConnect tools catalogued and risk-classified — across an index of 42,500+ MCP servers.