Contracts & Audits

Mainnet addresses

Contract	Address
Treasury (main protocol contract, receives deposits and holds staked GRAM)	`EQCLyZHP4Xe8fpchQz76O-_RmUhaVc_9BAoGyJrwJrcbz2eZ`
Parent / jetton master (hGRAM)	`EQDPdq8xjAhytYqfGSX8KcFWIReCufsB9Wdg0pLlYSO_h76w`
HPO jetton	`EQDQEUr0LPi8m6D6F0Wrvuok7tZbAcr0yn2Y7hK291MMzMjM`

Audits

Hipo’s smart contracts have been through four independent audits: Quantstamp (April 2025) and ProgramCrafter (March 2024) on the v2 contracts, and TonTech and Daniil Sedov (October 2023) on v1. Every report is published in full at github.com/HipoFinance/audits.

Source code

Contracts: github.com/HipoFinance/contract — written in FunC with the Blueprint toolset; the public test suite is runnable from that repository.
MCP server: github.com/HipoFinance/mcp — npm package @hipo-finance/mcp, MIT licensed.

What each contract does

Treasury — the main protocol contract: holds deposited GRAM and loans it to borrowers / validators.
Parent — the jetton master (minter) through which wallets and the treasury communicate.
Wallet — the per-user jetton wallet implementation.
Loan — used for validation loans to borrowers.
Bill — a non-transferable NFT (SBT) issued when an operation cannot complete instantly, such as an unstake while funds are in a validation round.
Collection — the NFT collection the bills belong to.
Librarian — a helper for contract deployment and storage using TON library features.
Borrower application — helps validators borrow from the protocol for validation.
Webapp — helps users stake and unstake.

Technical documents

Architecture — the validation-round state machine and protocol invariants.
Integration guide — message schemas for wallets and protocols.
schema.tlb — the full TL-B message schemas.
Message-flow diagrams — one image per protocol flow.

For reading live protocol state — exchange rate, fees, round timing — use the Hipo MCP Server.