Currency conversion at European Central Bank reference rates
Currency conversion at European Central Bank reference rates: give two currency codes (30 supported, e.g. USD, EUR, GBP, JPY) and an amount, get the rate and converted amount for the latest business day or any day in the last 90. NOTE: these ECB reference rates are published free of charge at ecb.europa.eu; they are for information only, not for transactions. $0.001 per call; an unsupported currency is not charged.
Answeringour last check, 2026-10-03
1 of 1checks answered this week
219 msmedian answer time
$0.001listed price per call
$0.001price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://extract.tollkit.dev/fx
| Category | Market data |
|---|---|
| Provider host | extract.tollkit.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-03 | valid payment request | 402 | $0.001 | 219 ms |
Example input (from the provider)
{
"body": {
"amount": 100,
"from": "USD",
"to": "EUR"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"properties": {
"input": {
"properties": {
"body": {
"properties": {
"amount": {
"default": 1,
"minimum": 0,
"type": "number"
},
"date": {
"description": "YYYY-MM-DD within the last 90 days; weekends use the previous business day.",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"from": {
"pattern": "^[A-Za-z]{3}$",
"type": "string"
},
"to": {
"pattern": "^[A-Za-z]{3}$",
"type": "string"
}
},
"required": [
"from",
"to"
],
"type": "object"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"amount": {
"type": "number"
},
"converted": {
"type": "number"
},
"from": {
"type": "string"
},
"notice": {
"description": "Required by the ECB: these rates are free at ecb.europa.eu and are for information only.",
"type": "string"
},
"rate": {
"type": "number"
},
"rate_date": {
"type": "string"
},
"requested_date": {
"type": [
"string",
"null"
]
},
"source": {
"type": "string"
},
"to": {
"type": "string"
}
},
"required": [
"from",
"to",
"rate",
"converted",
"rate_date",
"notice"
],
"type": "object"
}
},
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}