LexisNexis Library Express URL API Specification
You can create permanent links to search forms, sources, and even documents through URL API specification. Please visit our website to learn more about the process and download the instructions in .pdf form at the following address:
 Download the Specification
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 Frequently Asked Questions
 What’s an “API”?
The acronym stands for “application programming interface.” It’s a mechanism that allows programmers to call functions within another application. In this case, you will be constructing a URL rather than writing a computer program. The application you will send instructions to is the LexisNexis Library Express service itself, and you will be able to call the following three functions.
- Document-level link – retrieves a specific document.
- Source-level link – opens the Power Search form and populates the source selection options to facilitate user-initiated searching of a specific source.
- Search form link – open any search form in LexisNexis Academic.
The URL API is also used to support third-party vendors who provide article linking and federated search software to academic libraries. The developers of these systems can use the API to link authorized user automatically to full text documents in the LexisNexis Library Express service. In the case of link resolvers, the required document is identified from a citation in a source database and, once LexisNexis Library Express is identified as an appropriate target database, the API is used to deliver the full text document. Federated search services can use the API in a similar way, to link from a citation in their results list to the full-text document in LexisNexis Library Express.
 Can You Give Me an Example?
If you are an authorized user currently connected to your institution’s network, you should be able to try out the URL API by clicking the examples below:
Document-level link Example: Link to an article in Chronicle of Higher Education
Source-level link Example: Search the New York Times
Search Form link Example: Federal & State Codes
 Do I Have To Install Anything?
No. The URL API Specification simply provides directions for constructing URLs. The API does all the work of interpreting these URLs within LexisNexis Library Express.
 When Will My Link Resolver Work with LexisNexis Library Express?
That depends on how quickly your provider is able to incorporate the URL API into its service. LexisNexis is currently working with the following companies and organizations to support their link resolver systems. If your provider is not on this list, please direct them to this webpage to obtain the Specification and LexisNexis contact information.
- Ex Libris/SFX
- OCLC Openly Informatics
- Serials Solutions
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