frankfurter-latest

Get the latest ECB reference FX rates for a base currency and optional target list.

SERVERMeta Data Mcp SOURCEpypi:meta-data-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-derekslinz-meta-data-mcp/frankfurter-latest.md

WHAT IT DOES

What frankfurter-latest does on Meta Data Mcp

AI agents call frankfurter-latest to retrieve information from Meta Data 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 frankfurter-latest is rated Low

This tool queries and retrieves publicly available foreign exchange rate data from the European Central Bank via the Frankfurter API. It has no side effects, does not create, modify, or delete data, and does not execute code or financial transactions. It is a straightforward data retrieval operation, characteristic of the Read category.

From the tool's definition Tool name 'frankfurter-latest' and description 'Get the latest ECB reference FX rates' indicate a query operation that retrieves currency exchange rate data with no modification or execution capability.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs frankfurter-latest safely

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

frankfurter-latest Allowed

frankfurter-latest 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": {
    "frankfurter-latest": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Meta Data Mcp, apply this rule, and every frankfurter-latest call is checked against it from then on.

FAQ

Questions about frankfurter-latest

What does the frankfurter-latest tool do? +

Get the latest ECB reference FX rates for a base currency and optional target list. It is categorised as a Read tool in the Meta Data Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on frankfurter-latest? +

Register the Meta Data MCP server in PolicyLayer and add a rule for frankfurter-latest: 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 Meta Data Mcp. Nothing to install.

What risk level is frankfurter-latest? +

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

Can I rate-limit frankfurter-latest? +

Yes. Add a rate_limit block to the frankfurter-latest 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 frankfurter-latest completely? +

Set action: deny in the PolicyLayer policy for frankfurter-latest. 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 frankfurter-latest? +

frankfurter-latest is provided by the Meta Data MCP server (pypi:meta-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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