currency_api_rates
Get latest currency exchange rates from fawazahmed0 currency API (free, no key).
This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/currency-api-rates.md
What currency_api_rates does on UnClick
AI agents call currency_api_rates to retrieve information from UnClick 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 |
|---|---|---|---|
base | string | — | Base currency code (default: usd). |
Parameters from the server's own tool schema.
Why currency_api_rates is rated Low
This tool queries a currency API to retrieve current exchange rate information. It is a pure read operation with no side effects—it neither modifies data, executes code, deletes anything, nor commits financial transactions. The data retrieved is informational only. Severity is low because misuse (e.g., retrieving rates repeatedly) poses minimal harm.
From the tool's definition Tool name 'currency_api_rates' and description 'Get latest currency exchange rates' indicates retrieval of exchange rate data with no modification or execution capabilities.
Attacks that exploit this kind of access
The rule that runs currency_api_rates safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For currency_api_rates, this is the rule to start with:
currency_api_rates is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every currency_api_rates call is checked against it from then on.
Questions about currency_api_rates
Get latest currency exchange rates from fawazahmed0 currency API (free, no key). It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
currency_api_rates accepts 1 parameter: base. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for currency_api_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 UnClick. Nothing to install.
currency_api_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 currency_api_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 currency_api_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.
currency_api_rates is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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