options_chain
Get the options chain for a stock - calls and puts with strike prices, bid/ask spread, volume, open interest, implied volatility, and available expirations. Use this for "show me AAPL options", "what are the puts on Tesla?", "options expiring this Friday", "what's the implied volatility?", or any...
This record as markdown: /tools/io-github-blackboxfoundry-livedatalink/options-chain.md
What options_chain does on Livedatalink
AI agents call options_chain to retrieve information from Livedatalink without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
type | string | — | Filter by option type (default: "both") |
symbol | string | Yes | Stock ticker symbol (e.g., "AAPL") |
expiration | string | — | Expiration date in YYYY-MM-DD format. Defaults to nearest expiration. |
Parameters from the server's own tool schema.
Why options_chain is rated Low
This tool retrieves and queries real-time options market data. While the data is financial in nature, the tool itself performs no financial transactions, movements of money, or commitments of financial obligations—it only reads publicly available market information. Therefore it is categorized as 'Read' rather than 'Financial'.
From the tool's definition Tool description states 'Get the options chain for a stock' with specific data retrieved: 'calls and puts with strike prices, bid/ask spread, volume, open interest, implied volatility, and available expirations.' These are all read-only queries of financial…
Attacks that exploit this kind of access
The rule that runs options_chain safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Livedatalink, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For options_chain, this is the rule to start with:
options_chain is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Livedatalink, apply this rule, and every options_chain call is checked against it from then on.
Questions about options_chain
Get the options chain for a stock - calls and puts with strike prices, bid/ask spread, volume, open interest, implied volatility, and available expirations. Use this for "show me AAPL options", "what are the puts on Tesla?", "options expiring this Friday", "what's the implied volatility?", or any options trading question. It is categorised as a Read tool in the Livedatalink MCP Server, which means it retrieves data without modifying state.
options_chain accepts 3 parameters: type, symbol, expiration. Required: symbol. The full parameter table on this page comes from the server's own tool schema.
Register the Livedatalink MCP server in PolicyLayer and add a rule for options_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 Livedatalink. Nothing to install.
options_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 options_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 options_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.
options_chain is provided by the Livedatalink MCP server (https://livedatalink.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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