nostr:nprofile1qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcpzemhxue69uhks6tnwshxummnw3ezumrpdejz7qpq2rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sugh36r in nostr:nprofile1qyxhwumn8ghj7mn0wvhxcmmvqydhwumn8ghj7mn0wd68ytnzd96xxmmfdecxcetzwvhxgegqyz9lv2dn65v6p79g8yqn0fz9cr4j7hetf28dwy23m6ycq50gqph3xc9yvfs what is the difference between creating an API key on this page vs having to use a cashu token?

sorry I'm a noob