Permissionless OTC marketplace

OTC Marketplace for emerging market stablecoins

Tetris lets any wallet that signs the Terms & Conditions trade BRLA, BRZ, BRL1, MXNB, TRYB, IDRX, IDRT, ZARP, NGNC and PHPC against USDC / USDT through signed OTC orders, credit and fraud risk signals, and smart-contract PvP settlement.

Launch app See how it works
  • Permissionless access
  • Wallet-signed Terms
  • Credit and fraud risk signals
  • Atomic PvP settlement
Credit and fraud risk

we solve credit and fraud risk for crossborder stablecoin txns

Crossborder stablecoin settlement still runs through private chats, informal credit lines and manual fraud checks. Tetris moves the decision point before assets move: counterparties see wallet risk, policy flags and signed terms before accepting OTC flow.

  1. 01

    Counterparty credit exposure

    Bilateral OTC creates exposure when one side relies on limits, reputation, or post-trade recovery.

  2. 02

    Fraud and wallet risk

    Wallet behavior, exposure flags and suspicious counterparties need to be visible before acceptance.

  3. 03

    Fragmented settlement routes

    Liquidity is split across issuers, chains, market makers, OTC desks and local payout rails.

Supported markets

Supported stablecoins

Tetris connects emerging-market stablecoins with USDC / USDT through signed OTC orders, RFQ and a public reference venue.

  • Brazilian real stablecoin
    BRLA
    BRL RFQ
  • Brazilian real stablecoin
    BRZ
    BRL Public venue
  • Brazilian real stablecoin
    BRL1
    BRL Issuer route
  • Mexican peso stablecoin
    MXNB
    MXN Issuer route
  • Turkish lira stablecoin
    TRYB
    TRY RFQ
  • Indonesian rupiah stablecoin
    IDRX
    IDR Public venue
  • Indonesian rupiah stablecoin
    IDRT
    IDR Issuer route
  • South African rand stablecoin
    ZARP
    ZAR RFQ
  • Nigerian naira stablecoin
    NGNC
    NGN Pilot
  • Philippine peso stablecoin
    PHPC
    PHP Pilot

Supported stablecoin availability is subject to liquidity, chain support, counterparty quotes, user policies and applicable law.

Execution flow

Any wallet can trade after signing Terms

  1. 01

    Connect wallet

    User connects a wallet and signs Tetris Terms & Conditions.

  2. 02

    Maker posts order

    Maker signs an OTC order: asset, amount, price, chain, expiry and settlement conditions.

  3. 03

    Taker reviews risk signals

    Taker sees credit exposure, fraud-risk flags, wallet history, policy indicators and counterparty metadata where available.

  4. 04

    Taker accepts

    Taker accepts the order if the counterparty and terms match their own risk policy.

  5. 05

    PvP settlement executes

    Either both legs settle atomically in the smart contract, or the trade does not execute.

  1. Maker wallet
  2. Signed order
  3. Risk panel
  4. Taker wallet
Local stablecoin ↔ USDC / USDT Smart-contract PvP settlement
Risk signals

Credit and fraud signals inform counterparties. They do not replace their judgement.

Each OTC counterparty decides whom to accept based on the signals available before settlement and on their own policy.

Tetris does not approve counterparties for every trade. Users decide based on credit and fraud risk signals.
  • Credit exposure indicators
  • Fraud-risk patterns
  • Counterparty history
  • Allowlist / blocklist tools
  • Trade limits
  • Order expiry
  • On-chain execution record
  • Downloadable audit trail
Execution modes

One OTC venue, multiple liquidity routes

Tetris exposes the same wallet-signed access to three routing modes so counterparties pick the path that matches their size, urgency and policy.

  • A

    Maker order book

    Makers post signed OTC orders. Takers browse and accept orders that match their counterparty and risk policy.

  • B

    Request for quote

    Takers request quotes from selected makers for size and corridor. Makers respond with signed offers.

  • C

    Public venue reference

    Tetris references public venues for indicative pricing where the local stablecoin trades on-chain.

Workflow comparison

Why not just trade in Telegram or on an exchange?

Workflow Chat-based OTC Centralized exchange Tetris OTC
Permissionless counterparty access Access informal Platform-gated Wallet-based access after T&C signature
Wallet-signed terms Terms manual Platform-defined Terms signed by wallet
First-transfer risk High Lower Removed by PvP
Credit and fraud risk visibility Manual Limited Risk signals before trade
Price and size control High Limited by book Controlled by maker / RFQ
On-chain execution record Inconsistent Depends on venue On-chain execution record
Need to custody on venue No Usually required Tetris does not need to custody
Fit for crossborder stablecoin txns Medium Depends on listing Built for local stablecoins
Counterparties

Built for the counterparties who already trade local stablecoins

  • Market makers

    Quote local-stablecoin pairs and route flow through signed OTC and RFQ.

  • OTC desks

    Move counterparty conversations from chat to wallet-signed orders with PvP settlement.

  • Payment service providers

    Source liquidity for crossborder payouts in BRLA, MXNB, TRYB, IDRX and other corridors.

  • Stablecoin issuers

    Reach professional counterparties for bilateral primary and secondary flow.

  • Treasury and liquidity desks

    Hedge local-currency exposure and rebalance into USDC / USDT through signed orders.

  • Crypto brokers

    Offer institutional clients access to emerging-market stablecoin liquidity with on-chain settlement.

Infrastructure stack

The marketplace layer between OTC intent and settlement finality

  1. Wallet T&C signature

  2. Order book / RFQ

  3. Credit/fraud signal layer

  4. PvP smart contract

  5. Settlement record

  • Wallet-linked terms

  • RFQ / maker quotes

  • Smart-contract PvP settlement

  • Asset registry

  • Credit/fraud risk engine

  • On-chain receipt

  • Order signing

  • User-defined policies

  • Reporting and reconciliation

Access model

Start permissionless. Add controls where your policy requires them.

Any wallet that signs the Terms & Conditions can trade. Professional counterparties layer their own KYC, KYB, allow-lists and policy filters on top.

Launch app Request institutional demo

Bring emerging-market stablecoins into OTC flow

Trade BRLA, BRZ, BRL1, MXNB, TRYB, IDRX, IDRT, ZARP, NGNC and PHPC against USDC / USDT through wallet-signed OTC orders, risk signals and atomic PvP settlement.

Launch app