# Access Control - Users

 - [GET /access_control/users](https://api-docs.treasuredata.com/apis/td-api-v3/public/openapi/access-control-users/getaccesscontrolusers.md): Retrieves a list of users and their permissions.
 - [GET /access_control/users/{user_id}](https://api-docs.treasuredata.com/apis/td-api-v3/public/openapi/access-control-users/getaccesscontroluserbyid.md): Retrieves the specified user.
 - [PATCH /access_control/users/{user_id}/permissions](https://api-docs.treasuredata.com/apis/td-api-v3/public/openapi/access-control-users/updateaccesscontroluserpermissions.md): Updates a user's permissions.
 - [GET /access_control/policies/{policy_id}/users](https://api-docs.treasuredata.com/apis/td-api-v3/public/openapi/access-control-users/getaccesscontrolpolicyusers.md): Retrieves a list of users attached to a policy.
 - [PATCH /access_control/policies/{policy_id}/users](https://api-docs.treasuredata.com/apis/td-api-v3/public/openapi/access-control-users/updateaccesscontrolpolicyusers.md): Updates users attached to a policy.