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.
Coinbase Agentic Market feed · snapshot May 2026 (not live on-chain)
| From | Amount | When |
|---|---|---|
| 0xa04e96…ba3f | $0.0200 | 2026-09-06T21:45:05 |
| 0xa04e96…ba3f | $0.0200 | 2026-09-06T21:45:01 |