Clearbit offers solutions for developers to construct business intelligence APIs. Using the Clearbit Person API, users can lookup employee information by using a contact's email to return available data on the person. This information includes applicable social profiles, Twitter & Facebook handles, avatar URLs, and basic information such as name, location, and biography. All calls and responses with the Clearbit REST API are done in JSON formats over a secure SSL connection. Clearbit also offers other services such as company lookup, OFAC verification, and geolocation. The API is able to take up to 600 calls per minute. Webhooks are offered for calls that require processing time. Clearbit also offers Ruby & Node.js bindings for the API.