Get historical price, dividend, or split records for a symbol.
AI agents call historical to retrieve information from Yahoo Finance2 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns historical financial data without creating, modifying, deleting, or executing any operations. It is a straightforward read-only accessor of historical market information. Low severity because misuse retrieves only public historical data with no destructive or executable side effects.
From the tool's definition Tool retrieves historical price, dividend, or split records—descriptors 'Get' and 'records' indicate pure data retrieval with no modification or execution of external operations.
Attacks that exploit this kind of access
Get historical price, dividend, or split records for a symbol. It is categorised as a Read tool in the Yahoo Finance2 MCP Server, which means it retrieves data without modifying state.
Register the Yahoo Finance2 MCP server in PolicyLayer and add a rule for historical: 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 Yahoo Finance2. Nothing to install.
historical 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 historical 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 historical. 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.
historical is provided by the Yahoo Finance2 MCP server (gadicc/yahoo-finance2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
historical is one line of Yahoo Finance2's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →