Autocomplete, Name to Domain, and Risk API FAQ

Last Updated: April 25, 2025

❗Disclaimer: The Name to Domain and Risk APIs are offered as free, legacy products exclusively for Clearbit's existing customers. They are unsupported at this time. Free Clearbit accounts were sunset April 30, 2025 and new accounts are not being created at this time.

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Are the Autocomplete, Name to Domain, and Risk APIs Free?

Clearbit's Autocomplete API is a completely free product that you can use without needing an account or an API key.

The Name to Domain API and the Risk API are free APIs exclusively for Clearbit's existing customers. Please note that we are not creating new accounts at this time. An API key, associated with your existing Clearbit account, is required in your request when using the Name to Domain API and Risk API

Are they Regularly Maintained?

Because these products are free, it is available as-is and is not regularly maintained by our engineering team. The data returned by the API is completely curated by automations, meaning while the data is still very accurate there are sometimes outlier inaccurate results returned by the API that can persist for some time until the automation finds them and corrects them.

How Many Requests Can I Make with Each API?

You can make 600 requests per minute to each API (unless you are using Streaming or Reveal). Check the returned HTTP headers of any API request to see your current rate limit status.

Why am I Seeing Errors while Using the Name to Domain API?

Since a company name is not a unique identifier, you should be prepared for some inherent inaccuracy and lack of data in the name-to-domain results.

What is changed with the sunset of free Clearbit accounts?

Clearbit Free Tools were sunset April 30th, 2025. This includes free access to the Name to Domain API and Risk API, as they require an API key.