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SMU Libraries

List of APIs for Scholarly Resources

A list of commonly used scholarly resources API

Web of Science API

The Web of Science API lite supports simple searching across the Web of Science to retrieve core item-level metadata. To get the full functionality of this API, you will need an API key.

How to get an API Key

Follow the steps below to get an API key:

  1. Go to Clarivate Developer Portal
  2. Click on Sign Up and then Register to create a new account if you don't have one yet. Be sure to use your SMU email for the registration. If you already have an account, click Sign in instead.
  3. Once you sign in, go to Applications from the top menu. Click on Register a new Application.
  4. Fill up the Application ID, Application Name, and Application Description.
    • For the description field, describe how you intend to use the API, and what data you are looking to display. Be sure to mention the institution name (SMU) as well in the field.
    • Choose Public: Single Page Application (browser based app) for Client Type.
    • Do not check This application will use OAuth2.0 Flows (other than the Client Credentials flow, i.e. using redirects)
  5. Once you have completed the application registration, go to APIs on the top menu and click Information under Web of Science API Lite box.
  6. Scroll down a little until you see "Application" section. Click on Subscribe on the application that you want to connect to the API.
  7. It may take up to two days for your subscription to activate. You will be notified via email once your application is approved.

Return Format

The API supports JSON and XML responses. You can specify this in the HTTP header under Accept field. The API returns the following information:

  •     UT (Unique Identifier)
  •     Authors
  •     Author keywords
  •     Document type
  •     Title
  •     Issue
  •     Pages
  •     Publication date
  •     Source title
  •     Volume
  •     DOI
  •     ISBN
  •     ISSN


  • The Web of Science documents per year that can be retrieved through the API is unlimited, but the number of API requests that can be made is limited to 2 requests per second, with up to 200 requests per day.

Useful Links

API Wrappers

Wrappers are API-specific packages that streamlines the process of making API calls. Available wrappers for Elsevier API:

The use of electronic resources must comply with the Appropriate Use of Electronic Resources Policy and Singapore Management University Acceptable Use Policy