Deterministic Fee Calculation for BTC/LTC

Transaction predictability is the cornerstone of automated financial systems. In a volatile mempool environment, an inaccurate fee estimation can lead to "stuck" transactions or overpayment of network resources. WAproxy implements a deterministic fee calculation model for Bitcoin, Litecoin, and Dogecoin to eliminate this uncertainty.

Instead of leaving fee estimation to the application logic, the proxy bridge queries real-time network congestion and applies a tiered fee strategy: slow, normal, or fast. This ensures that every signed transaction has the optimal satoshis-per-vbyte ratio to meet its confirmation target.

For an AI agent or a headless script, receiving a "Suggested Fee" via JSON is more efficient than manual calculation. The proxy handles the byte-weight math—considering SegWit witness data and input/output counts—to provide a final cost before the broadcast occurs.

By using the `wallet_balance` and `wallet_send` modes in WAproxy, developers can simulate the transaction cost without committing to the blockchain. This "pre-flight" check prevents insufficient fund errors and ensures that the execution remains deterministic.

Reliability in 2026 is measured by the absence of surprises. By centralizing fee logic within the proxy, WAproxy provides a stable environment for programmatic payments, where costs are transparent and confirmations are predictable.