Documentation
Changelog
All notable changes to the SimpleFX protocol, LP dashboard, and Market Maker API.
Last updated: 8 April 2026
v1.4.0
27 Apr 2026
new
- •USDT on Base mainnet is now live as a trading pair (0xfde4C96c8593536E31F229EA8f37b2ADa2699bb2, 6 decimals). Supports nTZS ↔ USDT swaps with the same bid/ask spread model as USDC.
- •USDT on BNB Smart Chain is now live (0x55d398326f99059fF775485246999027B3197955, 18 decimals). Cross-chain swaps: USDT (BNB) → nTZS (Base) and nTZS (Base) → USDT (BNB) via dual-solver model.
- •Withdraw API: new optional `chain` parameter ("base" or "bnb"). Default is "base". Required when withdrawing USDT on BNB Smart Chain.
- •Balances API: response now includes a `usdt` field alongside `ntzs` and `usdc`.
- •LP Dashboard: USDT inventory stat card, USDT deposit tab (Base and BNB), USDT withdraw tab.
- •Inline wallet swap: USDC/USDT selector added to the swap widget.
- •Pool health card: three-way skew bar now includes USDT segment.
- •No breaking changes. Existing USDC integrations continue to work unchanged.
v1.3.0
8 Apr 2026
improvement
- •Migrated swap execution from intent-based protocol to direct LP pool model. Eliminates token escrow risk on failed swaps.
- •Swap pre-flight check now verifies solver pool liquidity before accepting the inbound transfer.
- •Rebuild developer documentation with sidebar navigation and API reference.
- •Removed stale cross-chain asset listings (USDT, EURC); these are on the roadmap.
v1.2.1
30 Mar 2026
fix
- •Fixed balance display showing Sepolia testnet values instead of Base mainnet.
- •Corrected 15+ server routes that prioritised BASE_SEPOLIA_RPC_URL over BASE_RPC_URL.
- •TokenBalance client component now reads NEXT_PUBLIC_BASE_RPC_URL correctly.
v1.2.0
20 Mar 2026
new
- •LP Dashboard: added per-fill breakdown in the Fills tab.
- •Spread page: live preview of effective buy/sell rates as you adjust bps sliders.
- •Withdraw flow: added balance check before submitting on-chain transaction.
- •Settings page: LP display name now editable inline.
v1.1.0
5 Mar 2026
new
- •SimpleFX LP portal launched on Base mainnet.
- •OTP email authentication for LP accounts.
- •BIP-44 HD wallet provisioning per LP account (coin type 8453, Base).
- •nTZS / USDC trading pair with configurable bid/ask spread.
- •Real-time fill streaming via Server-Sent Events.
v1.0.0
15 Feb 2026
new
- •WaaS API v1 launched: partner onboarding, user wallet creation, transfers.
- •Per-partner HD seed isolation with AES-256-GCM encryption.
- •nTZS contract deployed on Base mainnet: 0xF476BA983DE2F1AD532380630e2CF1D1b8b10688.