Get options chain data for a stock symbol, including available expiration dates and strike prices. Specify expiry date components to reduce data volume.
AI agents call get_option_chains to retrieve information from E*TRADE MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation that retrieves publicly available or user-accessible market data from the E*TRADE API. It has no capability to modify positions, execute trades, transfer funds, delete data, or run arbitrary code. The worst-case misuse scenario would be information disclosure or excessive API consumption, both low-blast-radius outcomes.
From the tool's definition The tool 'get_option_chains' retrieves 'options chain data for a stock symbol, including available expiration dates and strike prices' with no mention of modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Get options chain data for a stock symbol, including available expiration dates and strike prices. Specify expiry date components to reduce data volume. It is categorised as a Read tool in the E*TRADE MCP Server MCP Server, which means it retrieves data without modifying state.
Register the E*TRADE MCP Server MCP server in PolicyLayer and add a rule for get_option_chains: 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 E*TRADE MCP Server. Nothing to install.
get_option_chains 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_option_chains 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_option_chains. 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_option_chains is provided by the E*TRADE MCP Server MCP server (ohenak/etrade-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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