# Possession

Possession API is used for querying Token ownership and NFT ownership and ENS ownership, Developers can learn the asset information owned by users through the query address.

## Token

It supports querying how many and which Tokens an address owns, and on the contrary, can also query an Token that has been held by which addresses. 

* Query the token owned by the address

```graphql
{
  addrs(where:{address:"0xae89ad222e67205e8d947f131fdc9fa139828745"}){
    address
    holdTokens{
      name
      symbol
    }
  }
}
```

[**`Try Yourself`**](https://master.graphql.knn3.xyz/graphql)

* Which addresses are held by the Token

```graphql
{
  tokens{
    name
    addrsHold{
      address
    }
  }
}
```

[**`Try Yourself`**](https://master.graphql.knn3.xyz/graphql)

## NFT

It supports querying how many and which NFTs an address owns, and on the contrary, can also query an NFT has been held by which addresses. 

* Address held by NFT

```graphql
{
  addrs{
    address
    holdNfts{
      name
      symbol
    }
  }
}
```

[**`Try Yourself`**](https://master.graphql.knn3.xyz/graphql)

* Which addresses are held by NFT

```graphql
{
  nfts{
    name
    symbol
    addrsHold{
      address
    }
  }
}
```

[**`Try Yourself`**](https://master.graphql.knn3.xyz/graphql)

## ENS

You can query the number and specific information of the ENS owned by an address. On the contrary, you can also query the address where an ENS is held.

* Address owned by ENS

```graphql
{
  addrs{
    address
    ens
  }
}
```

[**`Try Yourself`**](https://master.graphql.knn3.xyz/graphql)

* Query address according to ENS

```graphql
{
  ens(where:{ens:"shadow88sky.eth"}){
    address
  }
}
```

[**`Try Yourself`**](https://master.graphql.knn3.xyz/graphql)

## Polygon

Access the information and number of NFT and token held by address

```graphql
{
  addrs(where:{address:"0x88520C10ad3d35aD2D3220CdE446CcB33f09331B"}){
    holdPolygonNfts{
      name
      symbol
      nftCount
      contract
    }
    holdPolygonTokens{
      name
      symbol
      tokenCount
      contract
    }
  }
}
```

[**`Try Yourself`**](https://docs.knn3.xyz/welcome/k.transformer/real-time-data-service/k.graphx-legacy/categories/broken-reference)

Access the holder's address according to NFT

```graphql
{
  polygon_nfts{
    contract
    name
    symbol
    addrsHold{
      address
    }
  }
}
```

[**`Try Yourself`**](https://master.graphql.knn3.xyz/graphql)

Access the holder's address according to token

```graphql
{
  polygon_tokens{
    contract
    name
    symbol
    addrsHold{
      address
    }
  }
}
```

[**`Try Yourself`**](https://master.graphql.knn3.xyz/graphql)


---

# 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.knn3.xyz/welcome/k.transformer/real-time-data-service/k.graphx-legacy/categories/possession.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.