The VESPA infrastructure makes use of various tools often maintained by external developers, most of which predate VESPA.
The most closely related tools are:
All of which benefit from direct inclusion in the VESPA activity.
VESPA issued requests for specific developments to other VO-compliant tools (sometimes in the past):
In addition to these, an effort is made to connect or adapt existing tools for use with VESPA and the VO.
These currently include:
Evolution of SAMP
SAMP connexions over https used to be blocked by most browsers, but this is no longer true - depending on the browser in use.
See this page for evolutions and tests: https://wiki.ivoa.net/twiki/bin/view/IVOA/WebSampHttps