Get latest foreign exchange rates from ECB via Frankfurter API. Optional: base currency (default USD), target symbols list.
AI agents call intel_forex_rates to retrieve information from Threat Intelligence MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a simple query to fetch publicly available foreign exchange rate data. It is a read-only operation that retrieves information without modifying, deleting, executing code, or moving money. While the server context involves threat intelligence, this particular tool is a straightforward data retrieval function with minimal security risk.
From the tool's definition Tool retrieves 'latest foreign exchange rates from ECB via Frankfurter API' with optional parameters for base currency and target symbols. Core operation is data retrieval with no side effects.
Documented attack patterns abuse exactly the kind of access intel_forex_rates gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Threat Intelligence MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for intel_forex_rates:
{
"version": "1",
"default": "deny",
"tools": {
"intel_forex_rates": {}
}
}intel_forex_rates is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get latest foreign exchange rates from ECB via Frankfurter API. Optional: base currency (default USD), target symbols list. It is categorised as a Read tool in the Threat Intelligence MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Threat Intelligence MCP Server MCP server in PolicyLayer and add a rule for intel_forex_rates: 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 Threat Intelligence MCP Server. Nothing to install.
intel_forex_rates 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 intel_forex_rates 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 intel_forex_rates. 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.
intel_forex_rates is provided by the Threat Intelligence MCP Server MCP server (marc-shade/world-intel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Threat Intelligence MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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113 Threat Intelligence MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.