risk data for machine payments
Endpoint
x402.ottoai.services/fx-rates
Live + reference foreign-exchange (forex) rates, base USD. LIVE near-real-time mid quotes for the 12 most-traded currencies (EUR, GBP, JPY, CHF, CAD, AUD, NZD, CNY, HKD, SGD, SEK, KRW), refreshed every minute with an honest market-open/stale flag, PLUS the official ECB daily reference table for ~30 currencies. Derive any cross-rate or pair. For agents pricing cross-border ops, treasury, invoicing and FX conversion. Keyless, pay-per-call.
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We do not publish the exact methodology yet.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 |
|---|---|---|---|---|---|---|
| 54m ago | 402 | 684 ms | exact eip155:8453 |
0x0E84…b808 | 0.001000 | clean |
| 8h ago | 402 | 43 ms | exact eip155:8453 |
0x0E84…b808 | 0.001000 | clean |
| 4d ago | 402 | 213 ms | exact eip155:8453 |
0x0E84…b808 | 0.001000 | clean |
| 4d ago | 402 | 226 ms | exact eip155:8453 |
0x0E84…b808 | 0.001000 | clean |
Reference
| URL | https://x402.ottoai.services/fx-rates |
| Sources | bazaar |
| Recipient per catalogue | 0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808 |
| Price per catalogue | 0.001000 |
| 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.