The Search API uses a REST-RPC hybrid approach to accept requests expressed as HTTP argument/value pairs and respond with structured data in XML or JSON format. Search requests operate over a Lucene index of terms. The API is avilable from the Digital Discovery System (DDS), the Digital Collection System (DCS), and the NSDL Collection System (NCS).
Service features include:
Documentation, examples, and service explorer
Access this DDS repository using the following Base URL: