Overview
Crypto tax tools guess. Missing cost basis becomes zero, transfers between your own wallets become sales, and there is no way to see why a figure is what it is.
Work
Hono on Node with a persistent SQLite database. Wallet readers for Bitcoin, XRP Ledger, Solana, and the EVM chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche, HyperEVM, and more), read-only connectors for Kraken, Binance, Coinbase Exchange, and Gemini with server-encrypted keys, importers for the major exchange statement formats, and an exact-decimal, account-specific FIFO engine with missing-basis propagation and grouped undo. Solana memecoin routes, native staking, Aave and Uniswap v3 positions, and Hyperliquid perps each get their own reviewed accounting.
Result
Private beta. Coverage is tracked as a 126-item parity backlog with acceptance criteria, worked example worksheets, and a documented limit for every connector.
Stack
- TypeScript
- Hono
- SQLite
- Node.js