When enriching work email:
If I have my own Findymail API key, the question is if it is using a lot fewer credits if we have Findymail first and then only use the other providers in the waterfall?
Using your own Findymail API key will result in zero Clay credit usage for that specific enrichment, regardless of its position in the waterfall. When you use your own API key, you're not consuming Clay credits for that particular service. However, keep in mind that for better coverage on email and phone data, we recommend using Clay's waterfall enrichments, which search sequentially across multiple data providers. The order in the waterfall may affect overall efficiency, but it won't impact Clay credit usage for your Findymail enrichments specifically.