# Reading Vault Data

Vault state is readable two ways: directly on-chain (standard ERC‑4626) and via the [Public API](/dedicated-client-vaults/reference/public-api.md) (vault discovery, decoded transactions, performance with live share-price snapshots). Use on-chain reads for per-transaction accounting; prefer the Public API for anything performance- or time-series-related.

### On-chain — ERC‑4626

Everything you need for basic accounting is already on the vault:

```ts
const vaultViewAbi = [
  {type: 'function', stateMutability: 'view', name: 'asset',
   inputs: [], outputs: [{type: 'address'}]},
  {type: 'function', stateMutability: 'view', name: 'totalAssets',
   inputs: [], outputs: [{type: 'uint256'}]},
  {type: 'function', stateMutability: 'view', name: 'balanceOf',
   inputs: [{type: 'address'}], outputs: [{type: 'uint256'}]},
  {type: 'function', stateMutability: 'view', name: 'convertToAssets',
   inputs: [{type: 'uint256'}], outputs: [{type: 'uint256'}]},
  {type: 'function', stateMutability: 'view', name: 'convertToShares',
   inputs: [{type: 'uint256'}], outputs: [{type: 'uint256'}]},
] as const

const [underlying, totalAssets, myShares] = await Promise.all([
  client.readContract({address: vault, abi: vaultViewAbi, functionName: 'asset'}),
  client.readContract({address: vault, abi: vaultViewAbi, functionName: 'totalAssets'}),
  client.readContract({address: vault, abi: vaultViewAbi, functionName: 'balanceOf', args: [owner]}),
])

const myAssets = await client.readContract({
  address: vault, abi: vaultViewAbi, functionName: 'convertToAssets',
  args: [myShares],
})
```

Share price is `totalAssets / totalSupply`. The vault's value per share increases over time as yield compounds.

> ⚠️ **`totalAssets` and anything derived from it (share price, `convertToAssets`, `convertToShares`) only update when there's a transaction that touches the vault** — deposit, withdrawal, rebalance, fee accrual. Between transactions, the on-chain numbers are stale against the underlying positions' live value. If you read the vault at a quiet period, you won't see yield that has accrued in the underlying positions since the last touch.
>
> For live, continuously-refreshed share price and performance, use the [**Public API**](/dedicated-client-vaults/reference/public-api.md) — it publishes hourly snapshots with values simulated against current on-chain state, so they reflect yield accrued between vault transactions.

### Public API — discovery, transactions, performance

For anything beyond bare ERC‑4626 state, use the Public API. It lets you:

* Look up vaults for a single client address or a batch of addresses.
* Fetch per-vault detail (asset, status, shares, fees, assigned strategy).
* Read decoded transaction history (deposits, withdrawals, rebalances).
* Pull performance time-series (APY/APR, TVL, hourly share-price snapshots).

For the full list of endpoints, request / response schemas, and a live "try it" UI, see [**Reference → Public API**](/dedicated-client-vaults/reference/public-api.md) — it points to the published Swagger, which is the source of truth and stays in sync with the live service.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.tesseract.fi/dedicated-client-vaults/integration-guide/scenario-a/reading-vault-data.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.