markets.holiday

Stock-exchange holiday calendar. Pass exchange (default US); returns the list of upcoming market holidays with the date, holiday name, whether the session is a full close or an early close, and the trading hours when partial. Use it to plan around non-trading days. Data by Finnhub.

SERVERMcp SOURCE@2sio/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-2s-io-mcp/markets.holiday.md

WHAT IT DOES

What markets.holiday does on Mcp

AI agents call markets.holiday to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why markets.holiday is rated Low

This is a straightforward informational query tool that retrieves reference data (holiday calendars) from an external source (Finnhub) without side effects. It does not execute code, modify data, delete anything, or trigger financial transactions—it simply provides scheduling information for planning purposes.

From the tool's definition Tool returns a list of market holidays with dates and trading hours; no modification, deletion, or execution occurs. Description uses 'returns' indicating data retrieval only.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs markets.holiday safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For markets.holiday, this is the rule to start with:

markets.holiday Allowed

markets.holiday is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "markets.holiday": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every markets.holiday call is checked against it from then on.

FAQ

Questions about markets.holiday

What does the markets.holiday tool do? +

How do I enforce a policy on markets.holiday? +

Register the MCP server in PolicyLayer and add a rule for markets.holiday: 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 Mcp. Nothing to install.

What risk level is markets.holiday? +

markets.holiday is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit markets.holiday? +

Yes. Add a rate_limit block to the markets.holiday 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.

How do I block markets.holiday completely? +

Set action: deny in the PolicyLayer policy for markets.holiday. 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.

What MCP server provides markets.holiday? +

markets.holiday is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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