> For the complete documentation index, see [llms.txt](https://docs.aozo.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aozo.io/stake/developers-and-ecosystem/builder-resources/vtoken-apis.md).

# vToken APIs

There are three ways to query vToken exchange price:

1. Use the Bifrost Runtime API, which is the most up-to-date and accurate method.
2. Call EVM contract on Moonbeam.
3. API for Frontend (with more vToken related storages)

### Bifrost Runtime API

[<mark style="color:purple;">https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fbifrost-polkadot-rpc.dwellir.com#/runtime</mark>](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fbifrost-polkadot-rpc.dwellir.com#/runtime)

`vtokenMintingRuntimeApi`

1. `getCurrencyAmountByVCurrencyAmount`
2. `getVCurrencyAmountByCurrencyAmount`

<figure><img src="https://content.gitbook.com/content/r31MTx7UH8xa62qIBTTw/blobs/B0XyfnRwolYlJKTieM6u/image.png" alt=""><figcaption></figcaption></figure>

As the showcase above, `token2:0` is DOT and `vtoken2:0` is vDOT on Bifrost Polkadot, getCurrencyAmountByVCurrencyAmount is to input vDOT amount (with decimals) to query the exchange price in DOT.

{% hint style="info" %}
Check the Token indexs via [<mark style="color:purple;">here</mark>](/stake/user-guides/mint-redeem-vtoken-without-dapp.md#token-indexes-on-bifrost-polkadot).
{% endhint %}

### EVM contract on Moonbeam

Query the exchange rate from SLPx contract on Moonbeam:

[<mark style="color:purple;">https://github.com/bifrost-io/slpx-contracts?tab=readme-ov-file#xcmoracle</mark>](https://github.com/bifrost-io/slpx-contracts?tab=readme-ov-file#xcmoracle)

Check more details at [<mark style="color:purple;">here</mark>](/stake/protocol-and-security/slpx-xcm-oracle.md).

### API for Frontend

**`exchangeRatio`** is to get Token by vToken

[<mark style="color:purple;">Api 1</mark>](https://dapi.bifrost.io/api/staking): Includes the following queryable interfaces

```
    {
      "contractAddress": "",
      "symbol": "vDOT",
      "slug": "voucher-dot",
      "baseSlug": "polkadot",
      "unstakingTime": 2592000,
      "users": 4455,
      "apr": 15.34,
      "fee": 10,
      "price": 15.0575651785682,
      "exchangeRatio": 1.43132748845706,
      "supply": 7072122.86098662
    },
```

[<mark style="color:purple;">Api 2</mark>](https://dapi.bifrost.io/api/site): Includes the following queryable interfaces

```
{
  "tvl": 128783099,
  "addresses": 89168,
  "revenue": 3886150,
    "vDOT": {
    "apy": "15.34",
    "apyBase": "15.17",
    "apyReward": "0.17",
    "tvl": 74398732.4975793,
    "tvm": 7072122.86098662,
    "totalIssuance": 4940953.70767365,
    "holders": 4455,
    "holdersList": [
      {
        "name": "vDOT",
        "holders": 2551,
        "unique_id": "asset_registry/9658598ef1eace56a0662d4a067a260e42b36f2a",
        "network": "bifrost",
        "url": "<https://bifrost.subscan.io/custom_token?unique_id=asset_registry/9658598ef1eace56a0662d4a067a260e42b36f2a>"
      },
      {
        "name": "vDOT",
        "holders": 389,
        "unique_id": "standard_assets/29085784439601774464560083082574142143",
        "network": "moonbeam",
        "url": "<https://moonbeam.subscan.io/assets/29085784439601774464560083082574142143>"
      },
      {
        "name": "vDOT",
        "holders": 223,
        "unique_id": "standard_assets/18446744073709551624",
        "network": "astar",
        "url": "<https://astar.subscan.io/assets/18446744073709551624>"
      },
      {
        "name": "vDOT",
        "holders": 9,
        "unique_id": "standard_assets/313524628741076911470961827389955394913",
        "network": "polkadex",
        "url": "<https://polkadex.subscan.io/assets/313524628741076911470961827389955394913>"
      },
      {
        "name": "vDOT",
        "holders": 1283,
        "unique_id": "asset_registry/37444e63907d968b4a4947cb38ce9c019e6b6310",
        "network": "hydration",
        "url": "<https://hydration.subscan.io/custom_token?unique_id=asset_registry/37444e63907d968b4a4947cb38ce9c019e6b6310>"
      }
    ]
  },
```


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