A network service that allows you to connect to a riak db as if it were a multilevel (levelup) database.
npm install -g level2riak
level2riak --host 127.0.0.1 --port 8087 --listen 8091 --bucket somebucket
You can use any leveldb/levelup tool to connect to your riak bucket on the listen port.
If you're doing this in your code, you might consider using riakdown directly.
One of the great things about this is that it allows you to use level debugging tools like lev with Riak.