Introduction
Sama pairs wallets whose share-token rebalances point opposite ways on BNB Chain and settles each match wallet to wallet in one transaction.
What Sama is
When you rebalance a portfolio of tokenized shares, somebody else on the same chain is often doing the exact opposite. Sama collects those rebalances in short, scheduled rounds, finds the parts that fit together, and moves the shares directly between the wallets involved. Only what stays unmatched is left for you to decide.
0.2 NVDAB stays with Maya as a leftover
The name comes from Indonesian: sama means both "the same" and, as bersama, "together". Two wallets holding the same shares, moving in opposite directions, settle together.
Four things that never change
- Your keys, your tokens. Shares go straight from wallet to wallet. The settlement contract never holds a token, before or after.
- You approve exact amounts. Every transfer, amount and deadline is in the plan you sign. A different plan means a different signature.
- All or nothing. Every matched transfer in a round lands in one transaction. If any one fails, none of them move.
- Checked afterwards. A separate verifier re-reads every settlement from the chain through its own RPC and publishes the result on your receipt.
Where to start
Quickstart
From sign-in to your first round in a few minutes.
Why Sama
What rebalancing alone costs, and where the savings come from.
How a round works
Join, match, approve, settle, decide the rest.
Security model
What you sign, what the contract can do, and what it can't.
Architecture
How the frontend, API, matcher, contract and verifier fit together.
API reference
Every route the app uses, with inputs and outputs.
Current status
| Area | Status |
|---|---|
| Network | BNB Smart Chain mainnet (56); testnet 97 for development |
| Assets | 88 bStocks (stocks and ETFs) plus USDT as cash |
| SamaSettlement | 0x7811a30D29d6c2Ca95Aeb4EE9D896cE44Cb72AC8 |
| Plan size limit | $500 crossed per plan while the contract is unaudited |
| Gas sponsorship | Planned. Approvals and settlement need a little BNB today |