Exchanges can be referred to by their factory address or by the exchange name (in lowercase and without spaces). In general, all major exchanges can be queried using their name. If the exchange name is not tagged within our system or if you prefer to do so, you can also query by using the exchange factory address:
https://services.blockpour.com/api/swaps/exchange/uniswapv2?network=ethereum
https://services.blockpour.com/api/swaps/exchange/0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f?network=ethereum
Please note that there may be some variations in the naming conventions of different exchanges, so it is best to check the documentation or use the exchange's address if necessary.