Tools (4)

get_rate
get_rates
get_history
report_feedback

get_rate

Get the current exchange rate between two currencies.

Uses ECB daily reference rates (updated ~16:00 CET). EUR is used as pivot
for cross-currency conversions.

Args:
base: ISO 4217 currency code for the base currency (e.g. "USD", "EUR", "NOK").
target: ISO 4217 currency code for the target currency (e.g. "GBP", "JPY").

Returns:
Exchange rate: 1 unit of base = rate units of target, plus the ECB publication date.

Parameter	Type	Required	Description
`base`	`string`	required	ISO 4217 currency code for the base currency (e.g. "USD", "EUR", "NOK").
`target`	`string`	required	ISO 4217 currency code for the target currency (e.g. "GBP", "JPY").

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "get_rate",
    "arguments": {
      "base": "example",
      "target": "example"
    }
  }
}

get_rates

Get current exchange rates for all ECB-covered currencies against a base currency.

Uses ECB daily reference rates (updated ~16:00 CET). Covers ~30 major currencies.

Args:
base: ISO 4217 currency code (e.g. "USD", "EUR", "NOK").

Returns:
Dictionary of all available currencies and their rates against the base,
plus the ECB publication date.

Parameter	Type	Required	Description
`base`	`string`	required	ISO 4217 currency code (e.g. "USD", "EUR", "NOK").

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "get_rates",
    "arguments": {
      "base": "example"
    }
  }
}

get_history

Get daily exchange rates for a currency pair over the past N days (up to 90).

Uses ECB 90-day historical reference rates.

Args:
base: ISO 4217 currency code for the base currency (e.g. "USD", "EUR").
target: ISO 4217 currency code for the target currency (e.g. "NOK", "GBP").
days: Number of days of history to return (1–90, default 30).

Returns:
Time series of daily exchange rates, newest first.

Parameter	Type	Required	Description
`base`	`string`	required	ISO 4217 currency code for the base currency (e.g. "USD", "EUR").
`target`	`string`	required	ISO 4217 currency code for the target currency (e.g. "NOK", "GBP").
`days`	`integer`	optional	Number of days of history to return (1–90, default 30). (default: 30)

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "get_history",
    "arguments": {
      "base": "example",
      "target": "example"
    }
  }
}

report_feedback

Report a bug, feature request, or general feedback for this data source.

Use this when something doesn't work as expected, when you'd like
a new feature, or when you have suggestions for improvement.

Args:
feedback: Describe the issue or suggestion.
feedback_type: One of 'bug', 'feature_request', or 'general'.

Parameter	Type	Required	Description
`feedback`	`string`	required
`feedback_type`	`string`	optional	(default: "general")

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "report_feedback",
    "arguments": {
      "feedback": "example"
    }
  }
}

Quick Start

Shell

curl -X POST "https://context.gnist.ai/mcp/ecb-fx/" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "Gnist-API-Key: YOUR_API_KEY" \
  -d '{"jsonrpc": "2.0", "method": "tools/call", "id": 1, "params": {"name": "get_rate", "arguments": {"base": "example", "target": "example"}}}'

Python

import httpx

resp = httpx.post(
    "https://context.gnist.ai/mcp/ecb-fx/",
    headers={"Gnist-API-Key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "get_rate",
    "arguments": {
      "base": "example",
      "target": "example"
    }
  }
},
)
print(resp.json())