Eckari
GET api.eckari.com/v1/fx/reference-rate
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
European Central Bank euro foreign exchange reference rate for a pair - the official daily fix used for accounting, invoicing and reporting - latest or any date in the last 90 days. The ECB publishes EUR/XXX only, so inverse and cross rates are computed from the same fix and named in rate_derivation. One fix per TARGET working day, not a tradable market rate. Use when: Convert or report an amount at an official daily rate both sides of a contract can verify against the ECB.
Resource: api.eckari.com/v1/fx/reference-rate
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x9d6b6fdB04040a55d58B24ff4C90C08cf6083C8f
Payment methods: — · Last validation: 2026-09-14 12:00:38.47+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"base",
"quote"
],
"properties": {
"base": {
"type": "string",
"pattern": "^[A-Za-z]{3}$",
"description": "ISO 4217 code of the base currency. EUR is always available; other currencies must be in the ECB reference rate list for the selected date."
},
"date": {
"type": "string",
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}$",
"description": "Optional ISO calendar date (YYYY-MM-DD) within the last 90 days. When the ECB published no fix on that date (a TARGET closing day), the latest prior fix is returned with a note."
},
"quote": {
"type": "string",
"pattern": "^[A-Za-z]{3}$",
"description": "ISO 4217 code of the quote currency. EUR is always available; other currencies must be in the ECB reference rate list for the selected date."
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x9d6b6fdB04040a55d58B24ff4C90C08cf6083C8f",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x9d6b6fdB04040a55d58B24ff4C90C08cf6083C8f",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "2000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.