Get option chain data from Interactive Brokers with real-time quotes. Returns calls and puts with strikes, bids, asks, volume, and implied volatility. Requires TWS or IB Gateway running locally. Args: symbol: Ticker symbol expiry: Expiration date (YYYYMMDD) port: IB port (7496 for live, 7497 for ...
AI agents call ib_option_chain to retrieve information from Trading Skills without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves real-time market data from Interactive Brokers without creating, modifying, deleting, or executing any financial transactions. It is a read-only query that returns option chain information. While it connects to a financial system, it does not move money, commit financial obligations, or execute trades — it only fetches market data.
From the tool's definition Tool description states it 'Get[s] option chain data' and 'Returns calls and puts with strikes, bids, asks, volume, and implied volatility' — purely data retrieval operations with no modification, deletion, or execution of trades.
Documented attack patterns abuse exactly the kind of access ib_option_chain gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Trading Skills, and nothing reaches the server without passing your rules. This is the rule we recommend for ib_option_chain:
{
"version": "1",
"default": "deny",
"tools": {
"ib_option_chain": {}
}
}ib_option_chain is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get option chain data from Interactive Brokers with real-time quotes. Returns calls and puts with strikes, bids, asks, volume, and implied volatility. Requires TWS or IB Gateway running locally. Args: symbol: Ticker symbol expiry: Expiration date (YYYYMMDD) port: IB port (7496 for live, 7497 for paper). It is categorised as a Read tool in the Trading Skills MCP Server, which means it retrieves data without modifying state.
Register the Trading Skills MCP server in PolicyLayer and add a rule for ib_option_chain: 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 Trading Skills. Nothing to install.
ib_option_chain 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 ib_option_chain 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 ib_option_chain. 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.
ib_option_chain is provided by the Trading Skills MCP server (staskh/trading_skills). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 35 Trading Skills tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
35 Trading Skills tools catalogued and risk-classified — across an index of 42,500+ MCP servers.