Hey friend, while Uniswap and SushiSwap primarily support Ethereum and ERC-20 tokens, they don't have BTC/EUR pairs. Curve, on the other hand, has a range of stablecoin exchanges, including some with EUR support. If you're specifically looking for BTC/EUR pairs, you might want to consider centralized exchanges that offer such trading pairs. However, keep in mind that centralized exchanges come with their own set of risks and potential drawbacks, especially in terms of privacy and security.