finance.currency.ecb
Get official European Central Bank reference exchange rates for ~33 fiat currencies (Frankfurter/ECB)
This record as markdown: /tools/io-github-whiteknightonhorse-apibase/finance.currency.ecb.md
What finance.currency.ecb does on Apibase
AI agents call finance.currency.ecb 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 |
|---|---|---|---|
base | string | Yes | Base currency code, uppercase (e.g. "USD", "EUR"). ~33 ECB currencies. |
date | string | — | Historical date in YYYY-MM-DD format. Omit for latest ECB rates. |
currencies | array | — | Filter to specific target currencies (e.g. ["EUR","GBP"]). Omit for all ECB currencies. |
Parameters from the server's own tool schema.
Why finance.currency.ecb is rated Low
Retrieves currency exchange rates, no data modification or financial transactions.
From the tool's definition Get official European Central Bank reference exchange rates
Attacks that exploit this kind of access
The rule that runs finance.currency.ecb 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 finance.currency.ecb, this is the rule to start with:
finance.currency.ecb 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 finance.currency.ecb call is checked against it from then on.
Questions about finance.currency.ecb
Get official European Central Bank reference exchange rates for ~33 fiat currencies (Frankfurter/ECB). It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.
finance.currency.ecb accepts 3 parameters: base, date, currencies. Required: base. 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 finance.currency.ecb: 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.
finance.currency.ecb 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 finance.currency.ecb 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 finance.currency.ecb. 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.
finance.currency.ecb 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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