# Types of Users

While users are free to act in any role, there are two main categories of users. There are users who pay a fee to request data be brought on-chain, and there are users who share the fee paid by the creator by providing or endorsing the off-chain data. The last type of user that can interact with the ODO is custodian of the ODO, who has the ability to configure the ODO's parameters. For now this role will be filled by the Modefi team.

[Data Requestors](types-of-users/data-request-creators)

[Data Endorsers](types-of-users/validators)

[ODO Custodian](types-of-users/odo-custodian)
