strk20

Private Sprint: apply by pull request to build a privacy app on Starknet mainnet. 14-31 August 2026.

Programmable execution router for the STRK20 shielded pool - arbitrary multi-step private DeFi plans in a single privacy_invoke

Private payment links on Starknet. Pay someone who has never registered a STRK20 viewing key — they register inside the claim.

Pre-sign privacy firewall for STRK20: see what a Starknet transaction reveals before you sign

Private, bounded STRK20 recovery reserves with heartbeat and veto control

Private token launch and distribution infrastructure on Starknet—public sales, shielded participation, private distributions, airdrop claims, and vesting powered by STRK20.

See what a STRK20 action still reveals, then take a quieter path

A minimal, real-mainnet example of adding STRK20 privacy to an existing Starknet app, built as a tip jar. Public tip jar now; STRK20 private tipping next.

Private money you can send as a link. A STRK20 anonymizer that pays people who have never touched Starknet, with claim authorisations that cannot be front-run.

Privacy-preserving parametric claims on Starknet using STRK20

Scam-resistant private payment requests on Starknet, powered by STRK20.

Private scheduled trading on Starknet. DCA and TWAP where the chain records one anonymous swap per interval, never who is accumulating.

Send a client an invoice link. They pay it. The money lands shielded — STRK20 private invoicing & payout rail.

Facet — Hide My Email, for your money. A STRK20-powered private Starknet app launcher with a dapp SDK and Ekubo/Endur adapters.

Provably fair Texas Hold'em on Starknet — a mental-poker protocol with no trusted dealer: cards are ElGamal-encrypted and shuffled by the players, every step is a sigma proof your browser verifies, and bankrolls move privately through the STRK20 pool. Live on mainnet.

Private coordinated vulnerability disclosure with deadline-bound cases and shielded STRK20 bounty settlement.

Developer example: use a Starknet shadow account to hold a Vesu Prime vSTRK vault position.

APP20 — private superapp on Starknet. Shielded wallet, encrypted mail, review-only intents and workflows.

Private prediction markets on Starknet. Trade them yourself from a wallet, or headlessly from a process. An agent carries a mandate written into the contract, so it can close your position and cannot take your money.

Mainnet-exercised Starknet sealed-bid NFT auctions: equal collateral, atomic ERC-721 delivery, STRK20 claims and encrypted recovery. Cairo + Next.js; unaudited hackathon project.