Recommendations to others considering FullContact:
Integrate with webhooks, it will increase the matching rate opportunities. Email hashing as MD5 and SHA-256 are available, use it if your use case enforces you to protect the identity of the profiles to match, but take into account that hashing the emails will reduce the matching ration considerably. A rate limit of 600 queries per min could be very low if you are batch processing profiles if that is your case to ensure to handle the rate limits properly by taking into account the X-Rate-Limit, X-Rate-Limit-Remaining, X-Rate-Limit-Reset response headers. Review collected by and hosted on G2.com.
What problems is FullContact solving and how is that benefiting you?
We have been using FullContact APIs since 2014, first the Person API, now the Enrich API to enrich Twitter profiles and to match emails. Review collected by and hosted on G2.com.