A living map of everyone meaningful you've met that tells you who to reach back out to before they go cold. Your closest people sit on the inner ring. The three you owe today are lit and threaded to you. Ask the chat anything about your own network.

A directory of 1,282 Cornell Lambda Chi Alpha alumni. Search anyone, filter by decade, field, school and state, open a person, and see the whole chapter by the numbers.

I built myself a second brain out of AI. It knows my goals better than I do, and pulls me out the second I start rabbit-holing. Connected Claude agents hold the goals, run the projects, keep every ask in one queue, and write everything back to plain files I can read. I stripped mine of anything personal and open sourced the shell as Northstar OS, so anyone can run their own.

Hospitals are required by law to publish every price they charge. They post them as files nobody opens. Brahva reads those files and tells you what a procedure will actually cost you, at each hospital near you, on your insurance, before you walk in. The pilot parsed 43,510 real prices out of 12 hospitals across Philadelphia and Westchester. The numbers in the demo below are the real ones.

A marketplace for used school uniforms at private schools. Families buy them new every year and throw them out a size later. Find your school, filter by size, meet locally. No fees, no shipping.

Tutoring and mentorship for high schoolers on college prep, career strategy and AI. Started as free workshops. 100+ students across 3+ countries so far, including an AI workflow class at a fish farm in the Philippines.