Clearbit offers a variety of plans you can subscribe to. It is free to use for up to 200 emails per month. The enrichment API can handle up to 2.5k requests and costs $99 per month. It costs $499 per month for Enrichment for Salesforce or Marketo which automatically enriches your data. Prospector API from $499 per month to find companies and contacts. Reveal API from $1000 per month to find companies by IP address.