Use when you need historical exchange rates, a historical FX rate series, forex ...
https://x402-gateway.blackwoodstate8.workers.dev/v1/fx-historyOverview
Use when you need historical exchange rates, a historical FX rate series, forex history or a currency trend. Do not use for rates older than 90 days, live quotes or crypto (one ECB rate per business day). Returns JSON with historical exchange rates: 90 days of daily ECB euro reference rates (free at ecb.europa.eu) for up to 10 currencies, rebased to any base as cross rates, with min, max and percent change for 0.005 USDC per call. Typical response time 1500 ms (p95). Category: Data.
Protocol
x402 (POST)
Price
$0.0050
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Historical FX Rates | Blackwood
Source
bazaar
Indexed
2026-10-18 00:38:37
Health
Status
healthy
Latency (p50)
1841ms
Uptime (30d)
100.0%
Reliability Score
85/100
Last Checked
2026-10-28 02:35:04
Last Healthy
2026-10-28 02:35:04
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"body": {
"days": 7,
"symbols": [
"USD",
"BRL"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Output Schema
{
"example": {
"attribution": "Source: European Central Bank (ECB) euro foreign exchange reference rates, available free of charge at ecb.europa.eu",
"base": "EUR",
"days": 5,
"endDate": "2026-10-16",
"note": "ECB reference rates are for information purposes only, published once per business day; they are not trading rates. Rates against a base other than EUR and the statistics are calculated by Blackwood State from the ECB euro rates.",
"series": [
{
"date": "2026-10-12",
"rates": {
"BRL": 5.5819,
"USD": 1.1181
}
},
{
"date": "2026-10-13",
"rates": {
"BRL": 5.6125,
"USD": 1.1188
}
},
{
"date": "2026-10-14",
"rates": {
"BRL": 5.6246,
"USD": 1.1195
}
},
{
"date": "2026-10-15",
"rates": {
"BRL": 5.6679,
"USD": 1.1208
}
},
{
"date": "2026-10-16",
"rates": {
"BRL": 5.7197,
"USD": 1.1253
}
}
],
"startDate": "2026-10-12",
"stats": {
"BRL": {
"changePct": 2.47,
"first": 5.5819,
"last": 5.7197,
"max": 5.7197,
"min": 5.5819
},
"USD": {
"changePct": 0.64,
"first": 1.1181,
"last": 1.1253,
"max": 1.1253,
"min": 1.1181
}
},
"truncated": false
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-28 02:35:04 | healthy | 402 | 2277ms | |
| 2026-10-28 01:31:20 | healthy | 402 | 3315ms | |
| 2026-10-28 00:26:55 | healthy | 402 | 1650ms | |
| 2026-10-27 23:32:09 | healthy | 402 | 490ms | |
| 2026-10-27 22:34:59 | healthy | 402 | 1905ms | |
| 2026-10-27 21:30:58 | healthy | 402 | 895ms | |
| 2026-10-27 20:16:17 | healthy | 402 | 2047ms | |
| 2026-10-27 19:12:16 | healthy | 402 | 1216ms | |
| 2026-10-26 16:29:41 | healthy | 402 | 1841ms | |
| 2026-10-26 05:54:12 | healthy | 402 | 1924ms | |
| 2026-10-25 05:53:28 | healthy | 402 | 1553ms |