I built BTCRouter because most Bitcoin wallets estimate fees with a simple multiplier — "slow / medium / fast" — and it's often catastrophically wrong. When the mempool is empty, you overpay. When it's full, you underpay and wait 3 days.

The Problem with Current Fee Estimation

Full Bitcoin Core nodes solve this properly, but require:

150GB+ storage

All-day initial sync

Constant upkeep

Too heavy for embedded devices, mobile apps, or quick scripting.

BTCRouter uses Blockstream's Electrum API instead — no node required, works from any machine.

What BTCRouter Does

A Python library for real-time Bitcoin intelligence:

Fee Estimation — 4 tiers (economy/normal/fast/instant) from live mempool data

Congestion Analysis — score 0–100 of on-chain demand with actionable recommendations

UTXO Optimization — greedy selection minimizing inputs + fees

RBF Simulation — model Replace-By-Fee scenarios

Privacy Scoring — grade your UTXO set based on address reuse and amount patterns

How Fee Estimation…