Nostra nstSTRK Review 2026: STRK Liquid Staking on Starknet

Nostra nstSTRK is the liquid staking token from Nostra, a DeFi app on Starknet. It represents a share of the STRK staked through Nostra and is transferable, so holders can keep using it while their STRK earns staking rewards.

Nostra describes itself as a Starknet app for lending, borrowing, swapping and bridging, and one search result calls it the top DeFi protocol by TVL on Starknet. The nstSTRK product is much smaller: its TVL is about $54,000, and it has been tracked since March 2024.

There are warning signs to weigh. No audits are listed for this product, TVL is down 7.7% over the week, and one search result headline reports that Nostra paused its Starknet money market. The snippet does not explain why, so check Nostra's official announcements for the current state of the protocol.

With liquid staking, you deposit STRK into a staking pool and get a receipt token back. For Nostra, that token is nstSTRK. It represents your share of all the STRK staked through Nostra, so you can hold it, move it, or use it elsewhere while your STRK is staked.

nstSTRK uses the ERC-4626 vault standard. That standard defines how deposits and shares are accounted for, so the token tracks the value of the underlying staked STRK plus accrued rewards. It also means other protocols can plug the token in more easily.

To get STRK back, you return nstSTRK to the protocol or sell it on a market that lists it. Unstaking terms, such as delays, are not described in the sources reviewed.

Nostra does not publish a fee schedule for nstSTRK in the material reviewed. Staking protocols commonly take a share of rewards, but the rate for this product is not stated.

Starknet network fees apply to transactions, and any swap or bridge used to obtain STRK would add costs. Users should check the staking interface in the Nostra app for current figures before depositing.

No audits are listed for nstSTRK in the data reviewed, and the project does not publish audit reports on the pages reviewed. Liquid staking adds smart-contract risk, because your STRK is held by contracts. There is also a risk that the token trades below the value of the underlying STRK when liquidity is thin.

The product's TVL is small, which reduces market depth. A search result headline also says Nostra paused its Starknet money market, though the snippet does not give the cause. Readers should check Nostra's official channels for incident details before depositing. Custody, team and regulatory status are not described in the sources reviewed. Only stake what you can afford to lose.

This is for Starknet users who already hold STRK and want to stake it while keeping a transferable token. It suits people who can judge smart-contract risk and check protocol status themselves. It is less suitable for anyone who needs audited, deeply liquid products or clearly published fee and withdrawal terms.