mas_fx_metadata

Get official metadata and schema for MAS exchange rates. Source: data.gov.sg dataset d_b2b7ffe00aaec3936ed379369fdf531b (MAS).

SERVERMcp Singapore SOURCE@olano/mcp-singapore

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/olano-mcp-singapore/mas-fx-metadata.md

WHAT IT DOES

What mas_fx_metadata does on Mcp Singapore

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

RISK

Why mas_fx_metadata is rated Low

Even though mas_fx_metadata 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

RECOMMENDED RULE

The rule that runs mas_fx_metadata safely

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

mas_fx_metadata Allowed

mas_fx_metadata 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": {
    "mas_fx_metadata": {}
  }
}

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

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

FAQ

Questions about mas_fx_metadata

What does the mas_fx_metadata tool do? +

Get official metadata and schema for MAS exchange rates. Source: data.gov.sg dataset d_b2b7ffe00aaec3936ed379369fdf531b (MAS). It is categorised as a Read tool in the Mcp Singapore MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on mas_fx_metadata? +

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

What risk level is mas_fx_metadata? +

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

Can I rate-limit mas_fx_metadata? +

Yes. Add a rate_limit block to the mas_fx_metadata 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 mas_fx_metadata completely? +

Set action: deny in the PolicyLayer policy for mas_fx_metadata. 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 mas_fx_metadata? +

mas_fx_metadata is provided by the Mcp Singapore MCP server (@olano/mcp-singapore). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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