Tanod Finance

utilpeek: get ECB foreign-exchange reference rates

get_fx_rates

Read-onlyIdempotent

utilpeek: foreign-exchange reference rates for a base currency. Input: base, optional symbols and date. Returns base, date, rates (decimal strings), cached, stale and attribution. Unknown currencies and older dates are a 422 (not charged); an ECB outage is a 5xx (not charged). Typically under 0.1 s (up to 10 s on a refresh). Price: USD 0.001. Free: 10 utilpeek calls per IP per UTC day. Rates are the European Central Bank (ECB) euro reference rates, available free of charge at ecb.europa.eu; non-EUR bases are cross rates computed by Tanod. For information purposes only, not for transactions (attribution carries the ECB terms).

Input Schema

TableJSON Schema

Name	Required	Description
`base`	Yes	Base currency (ISO 4217, e.g. USD), or EUR.
`date`	No	Optional YYYY-MM-DD within the last 90 days (default: latest).
`symbols`	No	Optional: 1-40 ISO 4217 codes to return (default: all ECB currencies).

Output Schema

TableJSON Schema

Name	Required	Description
`base`	No
`date`	No
`error`	No	Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object.
`rates`	No
`stale`	No
`cached`	No
`attribution`	No
`requested_date`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 8, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "attribution": {
+      "properties": {
+        "disclaimer": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "free_of_charge": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "modification": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "source": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "url": {
+          "type": [
+            "string",
+            "null"
+          ]
+        }
+      },
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "base": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "cached": {
+      "type": [
+        "boolean",
+        "null"
+      ]
+    },
+    "date": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "error": {
+      "description": "Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object."
+    },
+    "rates": {
+      "additionalProperties": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "requested_date": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "stale": {
+      "type": [
+        "boolean",
+        "null"
+      ]
+    }
+  },
+  "type": "object"
+}

First observedOct 8, 2026

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