Get option chain for a symbol
AI agents call optionChain to retrieve information from TradeStation MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves option chain information (strike prices, expiration dates, implied volatility, etc.) for a given symbol. It is a read-only query operation with no side effects. The function does not execute trades, modify positions, transfer funds, or delete data.
From the tool's definition Tool name 'optionChain' and description 'Get option chain for a symbol' indicate data retrieval only. No modification, deletion, execution, or financial transaction occurs. Option chain data is market data that is queried and returned.
Attacks that exploit this kind of access
Get option chain for a symbol. It is categorised as a Read tool in the TradeStation MCP Server MCP Server, which means it retrieves data without modifying state.
Register the TradeStation MCP Server MCP server in PolicyLayer and add a rule for optionChain: 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 TradeStation MCP Server. Nothing to install.
optionChain 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 optionChain 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 optionChain. 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.
optionChain is provided by the TradeStation MCP Server MCP server (maven81g/tradestation_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.
Teams ship this data inside their own products. See what a licence covers →