Your cart is empty
Browse CatalogYour sell cart is empty
Add cards from the buylist to get started
The math between any two beings on Cambridge TCG. Card overlap, language overlap, region, cadence, trade potential — composed into a typed bridge object that any kind of intelligence can read. How this works · JSON form
Give two beings, get the math between them. Math is the universal language — every number below is computable by any reader regardless of natural language, sensory bandwidth, or cognitive substrate.
Append ?a=<spec>&b=<spec> to this URL. Specs use one of two prefixes:
u:<username> — a public userc:<slug> — a public collectiveExample: /bridge?a=u:alice&b=c:tokyo-card-lounge
Both sides must be public. The bridge surface is opt-in — the platform does not compute affinity over beings who haven't made their profile public. See /methodology/bridges for every formula.