yahoo_finance_ticker_options
Yahoo Finance options chain. Returns option expiration dates and the current option chain for a symbol.
This record as markdown: /tools/crawlora-mcp/yahoo-finance-ticker-options.md
What yahoo_finance_ticker_options does on Crawlora
AI agents call yahoo_finance_ticker_options to retrieve information from Crawlora 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 |
|---|---|---|---|
symbol | string | Yes | Yahoo Finance symbol such as AAPL |
Parameters from the server's own tool schema.
Why yahoo_finance_ticker_options is rated Low
This is a data retrieval tool that queries financial market information (options chains) from Yahoo Finance. It returns existing public market data without creating, modifying, deleting, or executing any operations. The tool fits the Read category as it performs a query operation with no side effects.
From the tool's definition Tool retrieves and returns option expiration dates and current option chain data for a symbol. No modification, deletion, or execution of external operations described.
Attacks that exploit this kind of access
The rule that runs yahoo_finance_ticker_options safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crawlora, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For yahoo_finance_ticker_options, this is the rule to start with:
yahoo_finance_ticker_options 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 Crawlora, apply this rule, and every yahoo_finance_ticker_options call is checked against it from then on.
Questions about yahoo_finance_ticker_options
Yahoo Finance options chain. Returns option expiration dates and the current option chain for a symbol. It is categorised as a Read tool in the Crawlora MCP Server, which means it retrieves data without modifying state.
yahoo_finance_ticker_options accepts 1 parameter: symbol. Required: symbol. The full parameter table on this page comes from the server's own tool schema.
Register the Crawlora MCP server in PolicyLayer and add a rule for yahoo_finance_ticker_options: 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 Crawlora. Nothing to install.
yahoo_finance_ticker_options 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 yahoo_finance_ticker_options 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 yahoo_finance_ticker_options. 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.
yahoo_finance_ticker_options is provided by the Crawlora MCP server (crawlora-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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