What is the fees for taking DOI?

What is the fees for taking DOI?

Fees for taking DOI is $68 USD and it is valid for 3 months from the date of payment or up-to 100 DOI numbers, whichever comes first. Maximum 5 requests can be submitted per day.

For Premium Membership of DOI, fees is $168.45 USD, which is valid for the period of 1 Yr. from the date of payment and there is no limit on DOI numbers and maximum 100 requests can be submitted per day.

Please use "Pay Now" page available in "HelpDesk" drop-down menu in our site for making payments.