sg_fx_rate

Get an official MAS average exchange-rate observation and make per-one versus per-100 foreign-currency units explicit.

SERVERMcp Singapore SOURCE@olano/mcp-singapore

Low RISK CLASS

Category Read

Parameters 21 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/olano-mcp-singapore/sg-fx-rate.md

WHAT IT DOES

What sg_fx_rate does on Mcp Singapore

AI agents call sg_fx_rate 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.

Parameter	Type	Required	Description
`period`	string	—
`currency`	string	Yes

Parameters from the server's own tool schema.

RISK

Why sg_fx_rate is rated Low

Even though sg_fx_rate 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 sg_fx_rate 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 sg_fx_rate, this is the rule to start with:

sg_fx_rate Allowed

sg_fx_rate 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": {
    "sg_fx_rate": {}
  }
}

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 sg_fx_rate call is checked against it from then on.

FAQ

Questions about sg_fx_rate

What does the sg_fx_rate tool do? +

Get an official MAS average exchange-rate observation and make per-one versus per-100 foreign-currency units explicit. It is categorised as a Read tool in the Mcp Singapore MCP Server, which means it retrieves data without modifying state.

What parameters does sg_fx_rate accept? +

sg_fx_rate accepts 2 parameters: period, currency. Required: currency. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on sg_fx_rate? +

Register the Mcp Singapore MCP server in PolicyLayer and add a rule for sg_fx_rate: 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 sg_fx_rate? +

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

Can I rate-limit sg_fx_rate? +

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

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

sg_fx_rate 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

More on Mcp Singapore, and thousands of servers like it.

This server

All 291 Mcp Singapore tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →