Starknet

Starkzap, a single TypeScript SDK for Starknet, now lets developers add shielded balances, private transfers, and private DeFi flows to their apps without building a privacy layer themselves. The SDK is powered by STRK20, Starknet's privacy token standard, and is pitched as the fastest route from zero to a privacy-enabled product on the network.

• One SDK covers shielded balances, private transfers, and private DeFi integration.
• Announced via Starknet's official X account as the developer-facing piece of the STRK20 privacy push.
• Builders can now wire private flows directly into their own applications rather than depending on a separate privacy stack.

Anthropic has released FlashProve, an open-source research prototype that cryptographically proves which AI model generated a reply, and StarkWare notes the system is built on STARK cryptography its founders co-invented. StarkWare touted the move via Starknet's official X account as a signal for verifiable AI.

• FlashProve attaches a zero-knowledge proof to each response confirming it came from a specific committed model, without revealing the model's weights.
• In tests on Meta's 400B-parameter Llama 4 Maverick, proof generation ran at roughly 110 tokens/second on a single H100 — about 70–95× the GPU time of plain vLLM inference, with proofs around 19 MB each.
• The prototype is open source, aimed at letting users verify model provenance in AI responses.

Starknet's open Falcon challenge — a joint effort by the Starknet Foundation and StarkWare in collaboration with OpenZeppelin — has cut the cost of verifying a Falcon-512 post-quantum signature to about $0.023 per transaction. Participants and their AI agents set 434 records in the competition, bringing the verifier from its 48.4M gas baseline down to roughly 26M gas, a ~2× reduction.

• OpenZeppelin has publicly backed the effort, framing post-quantum security as a real design concern for onchain systems and highlighting that the challenge is open to people and AI agents alike.
• At ~$0.023, a Falcon-512 check fits comfortably within Starknet's 100M gas per-transaction budget.
• Competitors optimize the verifier and Keccak performance; every record is audited and credited to its contributor.
• The challenge continues Starknet's push for practical, low-cost post-quantum verification ahead of its wider quantum-resilience roadmap.

Starknet have launched an open challenge inviting developers and AI agents to find math that gives a STARK the same security with fewer checks, making proofs smaller. The challenge is now live, and every improvement found is credited to its contributor.

• Follows Starknet's parallel Falcon-512 verifier challenge under its broader push to cut the cost and size of proofs on-chain.
• Announced via Starknet's official X account.

Trading venue ArcX now lets users keep their activity private: anyone using a Starknet wallet such as Ready can make their ArcX transactions private, according to an announcement from ArcX retweeted by Starknet's official X account. The feature is live now at app.arcx.trade.

• ArcX operates on Starknet, where it launched earlier via a private beta with Extended, trading protocol points separately from the assets used to earn them.
• The move extends Starknet's optional-privacy push to another venue, following similar go-lives on Ekubo, Opus, SuperVega, Troves, and Endur.
• No bridge or separate account setup is mentioned — privacy is available directly through existing Starknet wallets like Ready.

Shadow Accounts are now live on Endur, Starknet's liquid staking protocol, letting users unstake natively in private mode. Private wallets can now manage staking positions without linking the activity back to their main wallet.

• Native unstaking now works in private mode on Endur.
• The launch extends Starknet's Shadow Accounts rollout across DeFi venues, following releases on Ekubo, Opus, SuperVega, and Troves.
• Announced via a retweet of Endur on Starknet's official X account.

Starknet Foundation's Bramble self-custody wallet is now supported on leading DeFi apps across Starknet, per an update from the Bramble team shared via Starknet's official X account. Bramble lets users swap, store, and shield assets natively on Starknet, and the integration makes it usable inside major DeFi applications on the network.

• Foundation-built wallet for the Starknet ecosystem, available for download via a link shared on Starknet's official X account.
• Supports swapping, storage, and shielding of assets, now wired into leading Starknet DeFi apps.
• Positions the wallet within Starknet's broader push around privacy and self-custody.

Starknet's non-binding community poll has concluded, with 93.5% of voting STRK holders backing a proposal to research whether the network should leave Ethereum and become an independent post-quantum L1. A joint StarkWare × Starknet Foundation working group is now leading that research and will publish a paper in the coming months, with the vote explained in a video walkthrough from the Starknet team.

• The vote was exploratory and advisory — no decision to exit Ethereum has been taken, and the research phase is just beginning.
• Part of Starknet's broader quantum-resilience push, alongside post-quantum account signing on testnet and the Falcon-512 verifier challenge.
• The proposal frames self-sovereignty and post-quantum security as a potential long-term direction for the network.

Lending protocol Troves now supports privacy end to end with Shadow Accounts — shielded tokens can earn yield in Troves vaults while staying private.

SuperVega, a Starknet options trading venue, has enabled Shadow Accounts, so users can now open and manage options positions without publicly linking those positions to their main wallet.