risk data for machine payments
Endpoint
data.greeneris.io/v1/fx/history
European Central Bank reference exchange rates for any past date or date range (business days since 1999-01-04), via frankfurter.dev. Query: ?date=2026-05-01 for one day, or ?start=2026-05-01&end=2026-05-08 for a daily series (max 366 days), plus ?base=EUR&symbols=USD,GBP (symbols optional -> all). Series responses nest rates by date. Historical data is immutable; served with a 24h cache.
Score
The score is built from observations we collect ourselves: how the endpoint responds, what the envelope contains, how stable the price and the recipient are, who pays and how often. It is deterministic — the same input always produces the same result.
We do not publish the exact methodology yet. If you own this endpoint, write to us and we will show you, item by item, what drags the score down.
Recent probes
| When | Code | Latency | Scheme and network | Recipient | Price | Findings |
|---|---|---|---|---|---|---|
| 6h ago | 402 | 153 ms | exact eip155:8453 |
0x6ab8…2dff | 0.002000 | clean |
| 12h ago | 402 | 160 ms | exact eip155:8453 |
0x6ab8…2dff | 0.002000 | clean |
| 4d ago | 402 | 195 ms | exact eip155:8453 |
0x6ab8…2dff | 0.002000 | clean |
| 4d ago | 402 | 219 ms | exact eip155:8453 |
0x6ab8…2dff | 0.002000 | clean |
Settlements to this wallet
| When | Payer | Amount | Facilitator | Transaction |
|---|---|---|---|---|
| 2d ago | 0x3ed9…430e | $0.00300 | not in registry | 0x338dc4…bbc4 |
| 3d ago | 0xc9c7…1670 | $0.00100 | not in registry | 0x41e85f…928b |
| 4d ago | 0x54e1…f4e0 | $0.00100 | not in registry | 0xee8e93…eb79 |
| 4d ago | 0x54e1…f4e0 | $0.00100 | not in registry | 0x574b28…28c1 |
| 4d ago | 0x54e1…f4e0 | $0.00100 | not in registry | 0x52182d…af6c |
| 4d ago | 0x54e1…f4e0 | $0.00100 | not in registry | 0xb2e9e7…ebb3 |
Reference
| URL | https://data.greeneris.io/v1/fx/history |
| Sources | well-known |
| Recipient per catalogue | 0x6ab8efe305cce67daa48c97bde29c04402822dff |
| Price per catalogue | NaN |
| Machine access | /v1/endpoint · /full · badge |
Is this your endpoint?
The score is built only from public observations. If something we recorded is wrong — say our prober hit you during maintenance — write to us. We will recheck and publish your reply next to the score.
We do not delete accurate observations. The prober makes at most one request per second per host and only asks for the payment challenge — it never pays and never takes content.