# Deploy Oracles

Curators can deploy a Napier Oracle from their markets via the Curator Dashboard. 

### What You'll Find Here

We assume you want to integrate PT and LP oracles into your system. In this guide, you will:

* Configure the **PT and LP oracles**.
  * Choose, per your use case, a price oracle for **any market’s PT or LP**.
  * Set an appropriate **TWAP duration**.
  * **Deploy** the oracle and obtain its feed/endpoint.
* **Validate** the oracle to ensure it’s working correctly.

***

### Using the Napier Oracle

Follow the steps below to deploy a Napier Oracle.

{% stepper %}
{% step %}

### Step 1: Preparation

Before Configuring the oracle, you will prepare:

#### Before Configuring the Oracle

* Access the **Curator Dashboard**.
* If your account is not verified, complete verification under [**Verify Curator Account**](/curate/napier-curation/verify-curator-account.md).
* If you haven’t created a market yet, follow the steps in [**Create Market**](/curate/napier-curation/create-market-napier-amm.md).
* Once you finish creating a market, it will appear in your Curator Dashboard.

#### **C**larify the prerequisites

* If you haven’t learned how Napier market work, start with [Markets - Napier AMM](/learn/protocols/markets-napier-amm.md).
* If you haven’t learned how Napier’s oracles work, start with Napier Oracles (Github)
  {% endstep %}

{% step %}

### **Step 2: Scoping**

Select the following parameters（[Github](https://github.com/napierfi/napier-v2/blob/d9648b23e337322defedf95b282d3c4bbacd294e/test/lens/uniswap/TokiLinearChainlinkOracle.t.sol#L39-L40)）

<div align="left" data-with-frame="true"><figure><img src="/files/T30Zl78JTpcUzjWIs0y4" alt="" width="563"><figcaption></figcaption></figure></div>

#### **Chose a Market**

* Select the market from which you want to source the oracle.

#### **Chose an Oracle Type**

When deploying the oracle, specify the type:

* **TWAP** or **Deterministic Oracles**; if you select the latter, follow [Deploy Deterministic Oracles](/curate/napier-curation/manage-market/deploy-oracles/deploy-deterministic-oracles.md).
* **Quote unit**: **Underlying asset** or **Asset** (i.e., price of PT in the underlying unit vs. in the asset unit)

{% hint style="success" %}

#### **Recommendation:** Price PT **against Underlying Assets** rather than against the **Asset**.

* **Why:** Many underlying assets (yield-bearing tokens) represent “assets staked in a specific protocol,” so the Asset price of that underlying is not strictly well-defined (redeemability, slashing risk, etc.). Therefore, a “perfect” **PT→Asset** price cannot be provided.
* **Example (PT-sUSDe / sUSDe, Asset = USDe):** Napier can guarantee that **1 PT-sUSDe** can be exchanged for **X sUSDe**, so a **PT→Underlying Assets** price exists natively.\
  By contrast, sUSDe→USDe redemption is not guaranteed; sUSDe’s “Asset” is actually **USDe staked in Ethena**, making the Asset-denominated price of the underlying not strictly well-defined.
* **Depeg behavior:** Even if **sUSDe depegs from USDe**, the **PT→sUSDe** conversion remains correct, since it relies on the Underlying assets side, not on external redeemability.
  {% endhint %}
  {% endstep %}

{% step %}

### Step 3: Price Retrieval

&#x20;Finally, deploy it and fetch the oracle.

#### Deploy the Oracle <a href="#step-1-deploy-the-oracle-if-not-already-deployed" id="step-1-deploy-the-oracle-if-not-already-deployed"></a>

Deploy and initialize the oracle here. ([Github](https://github.com/napierfi/napier-v2/blob/d9648b23e337322defedf95b282d3c4bbacd294e/test/lens/ChainlinkOracleFactory.t.sol#L43-L59))

```
function clone(address implementation, bytes calldata args, bytes calldata initializationData)
```

#### Call the Oracle <a href="#step-2-call-the-oracle" id="step-2-call-the-oracle"></a>

Price can be obtained simply by calling the `latestRoundData()` function. ([Github](https://github.com/napierfi/napier-v2/blob/d9648b23e337322defedf95b282d3c4bbacd294e/src/oracles/chainlink/TokiTWAPChainlinkOracle.sol#L76))
{% endstep %}

{% step %}

### Step 4: Sanity Checks

After integrating an oracle for PT price , do these steps to check the oracle's correctness:

#### **PT Oracle Sanity Check**

1. Fetch the **PT price** from your deployed oracle.
2. On the relevant PT market in Napier, open the **Price** tab and note the **PT/Underlying** price.
3. Multiply the price from step 2 by the **Underlying asset’s price** to convert it to **PT/Stable** terms.
4. Compare step 1 vs. step 3. If the deviation exceeds **0.2%**, investigate (and consider contacting the Napier team).

#### **Liquidity & Volatility Checks**

* **Price volatility:** On the market page, review **PT/Underlying** volatility, then use it to infer an estimate of **PT/Stable** volatility.
* **Liquidity:** In the same tab, run **trading simulations** (buy/sell PT against the underlying) and check **price impact** for different order sizes in both directions.
  {% endstep %}
  {% endstepper %}


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