frankfurter.currency.list
Returns all 33 currencies supported by the Frankfurter.dev ECB exchange rate API with their full English names. Use this to discover valid currency codes before calling frankfurter.currency.latest, frankfurter.currency.historical, or frankfurter.currency.series. No parameters required. No auth; p...
This record as markdown: /tools/io-github-whiteknightonhorse-apibase/frankfurter.currency.list.md
What frankfurter.currency.list does on Apibase
AI agents call frankfurter.currency.list to retrieve information from Apibase 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 |
|---|---|---|---|
locale | string | — | Reserved for future use. The API returns currency names in English regardless. Pass any value. |
Parameters from the server's own tool schema.
Why frankfurter.currency.list is rated Low
Retrieves static public currency metadata with no side effects or risk.
From the tool's definition Returns all 33 currencies supported...No parameters required. No auth; public domain ECB data.
Attacks that exploit this kind of access
The rule that runs frankfurter.currency.list safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For frankfurter.currency.list, this is the rule to start with:
frankfurter.currency.list 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 Apibase, apply this rule, and every frankfurter.currency.list call is checked against it from then on.
Questions about frankfurter.currency.list
Returns all 33 currencies supported by the Frankfurter.dev ECB exchange rate API with their full English names. Use this to discover valid currency codes before calling frankfurter.currency.latest, frankfurter.currency.historical, or frankfurter.currency.series. No parameters required. No auth; public domain ECB data. It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.
frankfurter.currency.list accepts 1 parameter: locale. The full parameter table on this page comes from the server's own tool schema.
Register the Apibase MCP server in PolicyLayer and add a rule for frankfurter.currency.list: 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 Apibase. Nothing to install.
frankfurter.currency.list 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 frankfurter.currency.list 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 frankfurter.currency.list. 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.
frankfurter.currency.list is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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