How it works - Portir

Every plan and every loan has its own flow in the app

The building blocks

Piece	Role
Binance RWA Data API	US session, halts, exchange reference price, issuer multipliers, catalog of 500+ stocks and ETFs
Binance Trading API	Executable quotes and swap calldata over PancakeSwap liquidity (user buys on mainnet)
The Guard	Pure verdict logic: GO / WARN / BLOCK with a reason
PlanRegistry	Plans, sell rules, funding pulls and run history. Holds no funds between calls
LoanGuard	Capped, on-chain-checked repayments of Venus loans from the borrower’s buffer
Portir agent (BNB Agent Studio)	Executor every 15 min, Loan Guard loop every 5 min, MCP / x402 / A2A faces
Binance Agentic Wallet	The agent’s hands on mainnet: MPC wallet with limits set in the Binance App

A manual buy

Nothing is sent from a server. The app only prepares calldata; your wallet signs.

A plan run

The same flow in the app: plan #13, AI & Semis, every node lit where the last run passed

A loan rescue

The Loan Guard flow and the last rescue, as the borrower sees it

The agent decides; the contracts enforce. A leaked agent key can take at most one run’s amount per due plan, and can only repay a borrower’s own debt, capped. See the security model.