Search scholarly editions of letters

Search letters

With correspSearch you can search within the metadata of diverse scholarly editions of letters. One can search according to the letter's sender, adressee, as well as place and date of the letter's creation.

This web services assembles and analyzes files in the Correspondence Metadata Interchange (CMI) format which is based on the TEI extension "correspDesc" developed by the TEI Correspondence SIG

Search letters


The bibliographic information of the scholarly editions can be found in the data overview.

The database is continually growing. Any published scholarly edition of letters (in print or digital form) can create an index according to the "Correspondence Metadata Interchange" format and register with the web service correspSearch.


Join the discussion

If you have general questions or feedback concerning "correspDesc", the CMI format or the Webservice "correspSearch", you can join the mailing list of the TEI SIG Correspondence and post your request there. This allows other scholars to contribute to the discussion.

Otherwise (and especially if you want to report an error found in the web service) you can of course send us an email.


The API allows you to query correspSearch automatically and integrate the results into your own website.

Query results are provided as TEI-XML files. See the documentation of the interface to learn about how to set up a query.


  • Letters: 19403
  • Identified persons: 1848
  • Identified places: 709
  • Publications: 74
  • Oldest letter: 18/01/1546
  • Most recent letter: 11/11/1974
  • Recently added data

    Samuel Thomas Soemmerring. Briefwechsel Januar 1787 – Oktober 1792. Edited by Franz Dumont.

    Alexander von Humboldt - Christian Gottfried Ehrenberg. Briefwechsel. Edited by Anne Jobst with the collaboration of Eberhard Knobloch.

    Correspondence of the Mozart family 1769-1791, in: Mozart Letters and Documents – Online Edition. Published in the context of the Digital Mozart Edition (DME) by the Internationale Stiftung Mozarteum, Salzburg

    Thomas Gray Archive, ed. Alexander Huber. University of Oxford

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    New Domain:

    The web service is now available at the domain Hitherto existing links are still valid and will be redirected with all parameters to the new domain.

    Further development of CMIF

    New blog post published about "Perspectives of the further development of the Correspondence Metadata Interchange Format (CMIF)" in "digiversity". [Read blog post]

    Workshop "Encoding correspondence metadata with correspDesc" at the TEI Conference 2015

    Besides discussing solutions with correspDesc, the "Correspondence Metadata Interchange Format" (CMIF) will be presented and participants will be shown how to create digital indexes of letters for correspSearch. [more]


    The Web service correspSearch was granted with the Berlin Digital Humanities Award 2015 (First Prize). [More information in German]