Bitcoin next-block fee only in sat/vB — fastest single-number fee estimate for agents building BTC transactions. next-block fee estimate sat/vB. Cryptographically signed (Ed25519) — every response is independently verifiable via /.well-known/obol-pubkey.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.002000 USDC | 0x215f...a7Ce |