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SSL Certificate API

The SSL Certificate API supports enrolling new certificate requests, renewing existing certificates and collecting certificates. See the SSL Certificate API documentation for details.

Client Certificate API

TODO: Add additional paragraphs describing the high level functions of any other available certificate APIs.


The Comodo APIs may be accessed with a SOAP client. For example, see the demo python client contributed by Jason Phelps from the University of Texas.


Email support for the API is available at, Monday through Friday, 4 AM - 8 PM Eastern Time. See the Certificate Service support page for a detailed listing of all support options.


PDF documentation for the SSL Certificate API and the Client Certificate API are linked on the repository page. Comodo also provides online API documentation.

Status Codes

The SSL and Client APIs share a common set of status codes. If you stumble onto an undocumented status code or error condition, please file a bug with Comodo. It would benefit other API users if you also documented your experiences here on this wiki page.

TODO: Add a link to the Bug tracking system.

Basic information about the possible error codes is provided in the Comodo API documentation but some of the error codes can have multiple causes. Additional anecdotal details may be provided here as a community reference.

  • -14 = An unknown error occurred! Check that the login_uri parameter of your authData object is set to 'InCommon'.
  • -32 = The two phrase should be the same! Check your revocation phrase ('phrase' parameter). It appears that it cannot be left as empty string.


InCommon maintains an email list,, as a place for community members to share experiences, discuss possible system enhancements, and see how other campuses handle various issues and tasks. We encourage you to join this list. To do so, send an email to with the following in the subject line: sub inc-cert FirstName LastName.

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