new CARD API key replacement: "filter" in URL

[chk2902]

When I use httpv2 and add a filter into the URL, is there some kind of shortcut to the new CARD keys, or is it really needed to clutter the query with 30 keys?

c0n c1n c2n c3n c4n c5n c6n c7n c8n c9n
c0e c1e c2e c3e c4e c5e c6e c7e c8e c9e
c0i c1i c2i c3i c4i c5i c6i c7i c8i c9i