Zapier API Integration for SaaS Project

I have a SaaS project that i would like to connect ou project to zapier via their API and Git. The initial setup is complete however my dev team are working on other project so we are outsourcing this project to someone that has previously worked on zapier integrations and Codeigniter. To be clear, this is a SaaS project developed in a multi database system so we need our tenant to have zapier access. Please only quote if you are completely comfortable with the zapier api integration process and quote the actual price, NOT a price where you ask me what price i'm willing to pay.
https://platform.zapier.com/quickstart/what-you-need