Mid-market reference rate for a base/quote currency pair, from the European Cent
Mid-market reference rate for a base/quote currency pair, from the European Central Bank.
Answers HTTP 404 without x402 payment termsour last check, 2026-09-24
0 of 1checks answered this week
n/amedian answer time
$0.007listed price per call
n/aprice it asked us
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Endpoint
GET https://api.certaindata.ai/ca054d66abad4d6ea80ba43013b61743-cd/fx-rate/fx/:base/:quote
| Category | Market data |
|---|---|
| Provider host | api.certaindata.ai |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | no x402 terms | 404 | 1431 ms |
Example input (from the provider)
{
"method": "GET",
"pathParams": {
"base": "string",
"quote": "string"
},
"queryParams": {
"date": "string"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"pathParams": {
"properties": {
"base": {
"description": "Base currency as a 3-letter ISO code, e.g. EUR.",
"type": "string"
},
"quote": {
"description": "Quote currency as a 3-letter ISO code, e.g. USD.",
"type": "string"
}
},
"required": [
"base",
"quote"
],
"type": "object"
},
"queryParams": {
"properties": {
"date": {
"description": "Optional. A specific date (YYYY-MM-DD) for a historical rate, e.g. 2026-01-01. Omit for the latest.",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"pathParams"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}