np keyserver (np.tiago.zip)

GET /u/<name>     key bundle for a username
GET /<np1 id>     key bundle by id (content-addressed)
PUT /             publish a bundle (body: npfull1...)
PUT /u/<name>     claim a username (body: npfull1...\n<base64 claim sig>)

names are first-come; only the holding key can update its name.
get the tool: https://github.com/tiagozip (np)