Oracle HRMS regularly used APIs List

hr_employee_api.create_employee
hr_employee_api.re_hire_ex_employee
dt_api.find_dt_upd_modes
hr_person_api.update_person
hr_contact_rel_api.create_contact
hr_person_address_api.create_person_address
hr_person_address_api.update_person_address
pay_element_entry_api.create_element_entry
pay_element_entry_api.delete_element_entry

hr_personal_pay_method_api.create_personal_pay_method
hr_phone_api.create_or_update_phone

hr_maintain_proposal_api.cre_or_upd_salary_proposal

hr_assignment_api.update_emp_asg  ( For general field Updates )
hr_assignment_api.update_emp_asg_criteria ( Creteria Updates ) 

Taleo Connect Client

The Taleo Connect client can be used to integrate your Legacy HR Systems with Taleo Recruiting Systems. The below image explains the way how it integrates the cloud applications

Please expect more on this ...