Open Library Stack

Innovative understands that libraries exist in a complex ecosystem and the Library Services Platform must communicate with external systems - from vendors to accounting software to PC reservation systems - without staff intervention.

Our Open Library Stack works for libraries of all sizes because we recognize the power of open system architecture with APIs and cloud optimization to ensure our system is open, scalable, and extensible for the future. LEARN MORE

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APIs & Tools

  • Sierra API - Modern, lightweight, and RESTful APIs that enable you to harvest and update records in Sierra. GET STARTED
  • Legacy APIs - Web Services APIs using SOAP/XML and (s)FTP. TECHDOCS VENDORDOCS
  • Sierra DNA - Build SQL queries to extend Sierra. CHECK OUT THE FORUMS

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New APIs in Sierra 4.0

  • GET /invoices/metadata - Returns use tax rates
  • GET /bibs/metadata - Returns material types


  • GET /patrons//holds and GET /patrons/holds/{holdId} now returns a field called pickupByDate, the date by which the hold must be picked up by the patron
  • GET /v5/bibs/search now returns same results as WebPac