Some top alternatives to Shelf includes ComAround Knowledge, SmartSupport, KMS Lighthouse, Talisma KnowledgeBase and ContactEngine.
Yes, Shelf provides API.
No, Shelf doesn't provide mobile app.
Shelf is located in Stamford, Connecticut
Shelf offers Quotation Based pricing model
Yes, Shelf can integrate with Kustomer, TalkDesk, Dropbox Business, Google Drive and many more.You can find more integration for Shelf here
The starting price is not disclosed by Shelf. You can visit Shelf pricing page to get the latest pricing.