# Bitcoin

Track multiple Bitcoin addresses or whole wallets via xpub/ypub/zpub keys, including Taproot.

## Features

- Single addresses: legacy (P2PKH), SegWit (P2WPKH/Bech32), and Taproot (Bech32m/P2TR).
- xpub / ypub / zpub support: rotki auto-detects the type from the prefix and derives addresses.
- Taproot (P2TR) xpubs: supported as a dedicated derivation type when adding a Bitcoin account.
- Address-level filtering: slice your Bitcoin event history by individual address even when adding via xpub.
- Multi-wallet: combine multiple xpubs and standalone addresses in one rotki instance.

## Setup

1. In rotki, open Blockchain & Accounts → Bitcoin → Add.
2. Paste either a single Bitcoin address or your extended public key (xpub, ypub, or zpub). For Taproot xpubs, select the P2TR derivation type since Taproot xpubs share the same `xpub` prefix as legacy P2PKH.
3. Optional: in Settings → RPC, open the Bitcoin Mempool tab to point rotki at a custom mempool.space / Esplora-compatible API (public block explorers are used by default).
4. rotki will derive addresses, fetch balances, and pull transaction history.

## FAQ

### Where do my xpubs and addresses go?

Only to the Bitcoin API you query. By default rotki uses public block explorers (blockchain.info, blockstream.info, mempool.space); you can instead set a custom mempool.space / Esplora-compatible endpoint in Settings → RPC. Either way the request goes from your computer to that endpoint without passing through any rotki-operated server.

### Is an xpub safe to share with rotki?

An xpub only allows watching balances; it cannot spend funds. rotki stores it locally and uses it from your machine to derive addresses and query balances. Avoid pasting xpubs into remote services in general.

### Can I run rotki against my own Bitcoin node?

rotki queries Bitcoin through a mempool.space / Esplora-style REST API, not the Electrum protocol or Bitcoin Core's RPC. You can self-host mempool.space or an Esplora (electrs) instance and point rotki at it via Settings → RPC → Bitcoin Mempool.

### Does rotki support Taproot?

Yes. rotki supports Taproot (P2TR) xpubs and Bech32m Taproot addresses natively when adding Bitcoin accounts.

### Is testnet supported?

No. rotki tracks mainnet Bitcoin only; testnet prefixes such as vpub are not accepted.