Nepenthes seeds are very thin, long and slightly curved. They look something like pale tan eyelashes.
Many people sow them on the surface of moist long-fiber sphagnum moss kept wet in an enclosure. Sphagnum is less likely to mold than other media during the time it needs to stay wet, before the seedlings have much size.
Depending on how many seeds you have, a plastic restaurant take-out food container with a transparent top works just fine as a container.
Be sure the seeds are pressed against the sphagnum so they stay moist.
Many people pre-treat them with a hydrogen peroxide solution. See the link below. I did not do that when I sowed mine and I got good germination. My seedlings have all survived, so far.
A gallon of distilled water at a market will cost you about a dollar, and will last quite a while.
This thread has the most detailed Nepenthes sprouting information I have found. The thread has other threads from other people who are not as compulsive as the first poster. The first poster describes his method for minimizing plant loss. The other posters are less compulsive and more willing to tolerate seed loss.
How I germinate and grow Nepenthes from seed | Carnivorous Plants in the tropics