If you have a standard number such as an ISBN or OCLC number for a record and want to get its Library Catalog URL for a specific OCLC Library, construct your request this way:
http://www.worldcat.org/webservices/catalog/content/libraries/[oclc number]?oclcsymbol=[library symbol]&wskey=[key]
Other standard numbers such as LCCNs:
The API response will either be a Holding structure, as shown in Response Details for just your designated library's OCLC symbol(s), or a "no holdings found" diagnostic.
You can provide up to 100 OCLC symbols in the request. Separate multiple values with a comma, for example:
If requesting information on more than 10 symbols, you will need to use the maximiumLibraries parameter to request a count up to 100 symbols returned in a single query. The default amount is 10 symbols.
The format parameter and callback parameter are only used with the JSON output format.
Please be sure to also consider the impact of FRBR Grouping and Service Level when determining the meaning and impact on the results.
Note: the default option is to include all the library locations for any record that represents an edition of the item identified. This is sometimes referred to as a "FRBRized" holdings results. To see holdings associated with only a single record, include the parameter frbrGrouping=off. However, the “off” option only works with OCLC number.
Note: the type of libraries retrieved will be impacted by what Service Level is used.
The OCLC Developer Network supports the use of OCLC Web Services—a set of tools and APIs that expose data and services for WorldCat and our member libraries and partner institutions or companies. learn more »
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