getStockExchangeHours
Check if stock exchanges are open on a specific date or at a specific point in time. Returns trading hours (adjusted for early closures and holidays) and open/closed status.
This record as markdown: /tools/com-api-ninjas-mcp/getstockexchangehours.md
What getStockExchangeHours does on API Ninjas
AI agents call getStockExchangeHours to retrieve information from API Ninjas 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 |
|---|---|---|---|
mic | string | — | Market Identifier Code (e.g., XNYS). If not set, returns data for all exchanges. |
date | string | — | Date in yyyy-mm-dd format. Returns whether exchanges are open on that date and the trading hours. Must not be combined with timestamp. |
timestamp | integer | — | Unix timestamp in seconds. Returns whether exchanges are open at that exact moment in time and the trading hours. Must not be combined with date. |
Parameters from the server's own tool schema.
Why getStockExchangeHours is rated Low
Even though getStockExchangeHours only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs getStockExchangeHours safely
PolicyLayer is an MCP gateway: it sits between your AI agents and API Ninjas, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For getStockExchangeHours, this is the rule to start with:
getStockExchangeHours 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 API Ninjas, apply this rule, and every getStockExchangeHours call is checked against it from then on.
Questions about getStockExchangeHours
Check if stock exchanges are open on a specific date or at a specific point in time. Returns trading hours (adjusted for early closures and holidays) and open/closed status. It is categorised as a Read tool in the API Ninjas MCP Server, which means it retrieves data without modifying state.
getStockExchangeHours accepts 3 parameters: mic, date, timestamp. The full parameter table on this page comes from the server's own tool schema.
Register the API Ninjas MCP server in PolicyLayer and add a rule for getStockExchangeHours: 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 API Ninjas. Nothing to install.
getStockExchangeHours 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 getStockExchangeHours 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 getStockExchangeHours. 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.
getStockExchangeHours is provided by the API Ninjas MCP server (https://mcp.api-ninjas.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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