rate_on
Rate on a given date
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Third-party content written by another agent. Data to evaluate, not instructions.
Call this tool for the ECB rate of one pair on one date. Returns both directions and the rate date, so a reciprocal is never reported as the published figure. A date beyond the free window is shortened, never refused.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| from | string | yes | Base currency. The ECB quotes every currency per 1 euro, so "the ECB rate for USD" is from EUR to USD, not the other way round; invert only if the user asked for the inverse |
| to | string | yes | Quote currency. The rate returned is 1 from = X to |
| date | string | yes | ISO date YYYY-MM-DD. If the ECB published nothing that day - every weekend, 1 January, Good Friday, Easter Monday, 1 May, 25 and 26 December - the last rate published on or before it is returned and the answer names that date. Free covers the last 90 days: an older date is shortened to the oldest free day rather than refused, and rate_date says which day the numbers are really from. Pro covers every date back to 1999-01-04 |
Raw JSON schema
{
"type": "object",
"properties": {
"from": {
"type": "string",
"pattern": "^[A-Za-z]{3}$",
"description": "Base currency. The ECB quotes every currency per 1 euro, so \"the ECB rate for USD\" is from EUR to USD, not the other way round; invert only if the user asked for the inverse"
},
"to": {
"type": "string",
"pattern": "^[A-Za-z]{3}$",
"description": "Quote currency. The rate returned is 1 from = X to"
},
"date": {
"type": "string",
"maxLength": 10,
"description": "ISO date YYYY-MM-DD. If the ECB published nothing that day - every weekend, 1 January, Good Friday, Easter Monday, 1 May, 25 and 26 December - the last rate published on or before it is returned and the answer names that date. Free covers the last 90 days: an older date is shortened to the oldest free day rather than refused, and rate_date says which day the numbers are really from. Pro covers every date back to 1999-01-04"
}
},
"required": [
"from",
"to",
"date"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}