# CoW Swap

rotki decodes CoW Swap trades on Ethereum and Gnosis Chain, including native-ETH orders via the ethflow contracts and vCOW claim/vesting flows.

## Features

- GPv2 settlement trades decoded as swap events (spend/receive) with fees attributed to CoW Swap.
- ETH-native orders via the CoW ethflow contracts decoded: place, refund, and invalidate events recognised.
- vCOW claim and vesting decoded; vCOW returned and COW received are linked through the CoW counterparty.

## Limitations

- CoW Swap decoding currently ships only for Ethereum and Gnosis Chain; other CoW deployments are not yet covered.

## Setup

1. In rotki, add the Ethereum and/or Gnosis Chain address you use with CoW Swap.
2. In rotki, open History and let the initial sync run. Trades, ethflow orders, and vCOW claims are decoded automatically.

## FAQ

### Are native-ETH (ethflow) trades supported?

Yes. Orders placed through the CoW ethflow contracts are decoded as CoW Swap trades, with placement, refund, and invalidation events recognised.

### Does rotki read CoW Swap trades from its own servers?

No. rotki is a local application that talks directly to the RPC endpoint you configure for each chain - the public default, a third-party provider, or your own node. Each query goes from your computer to that endpoint without passing through any rotki-operated server.