Zoho has lot of Products, I already have integrated almost all products using API and programming language is PHP like Zoho CRM with Hubspot ,Zoho CRM with Multivende ,Zoho CRM with Xero ,Zoho CRM with RightSignature ,Zoho CRM with HelloSign ,Zoho CRM with DocuSign ,Zoho CRM with WordPress ,Zoho CRM with Shopify and Zoho CRM with Quotient
And many more others. I have integrated following zoho products already Zoho People ,Zoho Books ,Zoho inventory ,Zoho CRM ,Zoho Projects and Zoho Desk.
Feel free to contact with me, if you have any question. I will ready to address all of your queries happily. Please contact with me before placing order so that we can discuss time frame and budget according to your requirements. It will be honor for me to work with you.
Thanks