Billing

One credit will be deducted for each contact or company record that you receive.
You will not be charged twice for the same contact/company record.
For contact records that include an email address: A credit will only be deducted for a contact if the response code comes back as “Valid” or “Accept All” (email_status).

Rate Limit

You can make 500 requests per minute to the API.
Check the returned HTTP headers of any API request to see your current rate limit status:

• X-RateLimit-Limit - The maximum number of requests that the customer is permitted to make per minute.
• X-RateLimit-Remaining - The number of requests remaining in the current rate limit window.
• X-RateLimit-Reset - The time at which the current rate limit window resets in UTC epoch seconds.
• Retry-After - The number of seconds to wait until the rate limit window resets. Only sent when the rate limit.

Email Verification

We use Email Verification for each contact record that comes with an email address. You will receive response code (email_status) for each email address. The response codes are as follows:

• Valid - The email represents a real account / inbox available at the given domain.
• Invalid - Not a real email.
• Unknown - For some reason email can’t be verified valid or invalid. Most of the time a domain did not respond quickly enough.
• Accept All - These are domains that respond to every verification request in the affirmative, and therefore cannot be fully verified.