> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fragmetric.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# 5. Caution for Deposit Instruction

> DeFi Integration for wfragAsset

If your protocol integrates Fragmetric’s deposit logic by manually constructing and including an instruction either:

* `user_deposit_sol`
* `user_deposit_supported_token`

..you must ensure that **all required pricing source accounts** are included in the transaction.
These accounts are **not declared in the IDL** and must be resolved explicitly — either manually, via SDK, or by reading the fund account data.

<Warning>
  Do not hardcode account lists.
  Do not assume the current set of accounts will remain valid after governance updates (e.g. adding supported tokens or vaults).
</Warning>

## What Are Pricing Source Accounts?

These accounts are used to price deposits and determine how much fragAsset should be minted.
They are derived from the **dynamic configuration of the fund**, and may vary over time or between assets (e.g., `fragSOL`, `fragJTO`, `fragBTC`).

### Ground Rules for Required Accounts

For every `fragAsset` fund, you must include accounts of:

* `fund.supported_tokens[0:fund.num_supported_tokens].pricing_source.address`
* `fund.restaking_vaults[0:fund.num_restaking_vaults].pricing_source.address`
* `fund.normalized_token.pricing_source.address` — only if `fund.normalized_token.enabled == 1`

<Note>
  Some accounts may appear multiple times (especially in `fragBTC`, which consists of pegged assets).
  You can manually deduplicate these accounts when building your transaction.
</Note>

## How to Include These Accounts

You can derive this list by reading the on-chain fund account data for each `fragAsset`, following the rules above.
Also there are two safe, forward-compatible options to resolve these accounts:

* **Use the SDK**: The `@fragmetric-labs/sdk` will resolve all required pricing source accounts for you based on the latest fund state.

* **Read the fund account**: Each fund account data includes the list of pricing source addresses.
  Use this list to avoid manually deriving the accounts in your transaction.

### 1. Use the SDK to build an instruction

You can build a full deposit transaction. And if you need unsigned transaction or just a part of the instructions. you can just build a blueprint transaction without serialize it.
Check [Tools > Fragmetric SDK (offchain) > Deposit](/dev/tools/sdk/offchain/quickstart#3-deposit) for details.

### 2. Read the addresses from the fund account

You can read addresses directly from the fund account before build a deposit instruction to include all required pricing sources.
There are below fields containing pricing source account information in the **fund account** data like below:

```rust theme={null}
/// ... starts from data offset: 0x9000 (36864)
num_pricing_source_addresses: u8,
pricing_source_addresses: [Pubkey; 33],
```

Check [Developers > Solana Programs](/dev/solana-programs#fragmetric-liquid-restaking-program) for the address of fund accounts.