2854 - docs: add NEP-621 Tokenized Vault standard#3057
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Jun 25, 2026
| description: "Learn how Tokenized Vaults (NEP-621) are defined on NEAR" | ||
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| A **tokenized vault** is a smart contract that accepts deposits of an underlying [fungible token (FT)](../ft/standard) and, in exchange, issues **shares** that represent proportional ownership of the assets held by the vault. |
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| <Tip> | ||
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| NEP-621 defines the **interface** and the **expected behavior** of a vault contract, but it does not dictate how the internal logic (yield strategy, fees, accounting) should be implemented. |
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use less bold emphasis - everywhere in the file, use only when it's actually needed
| withdraw(asset_amount: string, max_shares_deducted: string?, receiver_id: string?): string | ||
| ``` | ||
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| Upon a successful withdrawal, the vault **must** emit a [`VaultWithdraw`](#events) event. Because transactions on NEAR are **non-atomic**, a vault should either: |
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let's move VaultWithdraw event description into the "Events" section below
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| When implementing a vault, keep the following risks in mind: | ||
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| - **Exchange rate manipulation (inflation attacks):** if the vault has a permissionless donation mechanism, an attacker can donate assets to inflate the share price and steal value from later depositors. Mitigate by seeding a non-trivial initial deposit and/or using a virtual decimal offset on issued shares (demonstrated in the reference implementation). |
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make sure that when you say "reference implementation", it has a link to it, so a reader isn't left wondering where it's
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Closes #2854