Chama

Android
Android

Trade Bitcoin with anyone. Trust the math, not a middleman.

A chama is an East African savings circle — neighbors who pool their money
and settle on trust. Chama gives that same circle to the whole world, except
here the trust is cryptographic. Buy and sell Bitcoin, goods, and services
peer-to-peer behind an escrow that no company can freeze, seize, or switch
off — because there is no company in the middle. No server. No "Chama Inc."
Just you, your counterparty, your community, and Nostr.

Your money is never ours to lose. Every trade is locked into a 2-of-3
escrow, split with Shamir Secret Sharing and held as Fedimint ecash. No
custodian ever touches the funds. When both sides are happy it settles over
Lightning in seconds. If a deal goes sideways, a community arbiter you already
trust — not a faceless support queue — helps release the funds to the right
side. Two of three keys always decide. Never one.

No account. No email. No KYC. Sign in with your Nostr key and you're in —
nothing to sign up for, nothing to be deplatformed from. Trades travel as
encrypted Nostr events (NIP-44) across many relays, so the marketplace itself
is as censorship-resistant as Nostr.

Built for real-world commerce:

  • 2-of-3 escrow with community arbiters — disputes settled by people, not policies
  • Lightning-fast settlement via client-side Fedimint ecash
  • Get paid your way — Strike, Cash App, Zelle, bank transfer and local rails, surfaced for your community
  • Bring your own Lightning wallet over Nostr Wallet Connect (NWC)
  • Join community "Chamas" — from Bitcoin Life to Global USD — each with its own arbiters and payment rails
  • Runs in your browser, on Android, and on desktop — same keys everywhere

Bitcoin was meant to be peer-to-peer electronic cash. Chama is peer-to-peer
electronic commerce — sovereign, private, and woven from trust.

Bring your keys. Bring your circle.

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