1. cl-one-time-passwords
    cl-one-time-passwords implements HOTP (RFC 4226) and TOTP (RFC 6238) in Common Lisp
  2. cl-op
    A partial application library inspired by Goo's op function and SRFI 26
  3. cl-openal
    cl-openal is a basic set of bindings to the OpenAL audio library
  4. cl-openbox
    cl-openbox provides and interface to the box.net file storage service web API
  5. cl-opencalais
    cl-opencalais is a wrapper for the Thomson Reuters Calais web API
  6. cl-opencv
    cl-opencv is a set of CFFI bindings to the OpenCV computer vision library
  7. cl-opengl
    cl-opengl is a set of CFFI bindings to the OpenGL, GLU and GLUT
  8. cl-openid
    Cl-OpenID is an implementation of OpenID protocol in Common Lisp
  9. cl-opossum
    CL-Opossum is a Common Lisp implementation of a Parsing Expression Grammar parser generator
  10. cl-pack
    CL-PACK supplies Perl/PHP/Ruby/Python compatible pack() and unpack() functions to allow easy use of binary format protocols and files with the above mentioned languages and C