# List collections

Serverless indexes do not support collections.

```python Python theme={null}
from pinecone.grpc import PineconeGRPC as Pinecone

pc = Pinecone(api_key='YOUR_API_KEY')

active_collections = pc.list_collections()
```

```javascript JavaScript theme={null}
// npm install @pinecone-database/pinecone
import { Pinecone } from '@pinecone-database/pinecone'

const pc = new Pinecone({ apiKey: 'YOUR_API_KEY' })

await pc.listCollections();
```

```java Java theme={null}
import io.pinecone.clients.Pinecone;
import org.openapitools.client.model.CollectionModel;

public class ListCollectionsExample {
    public static void main(String[] args) {
        Pinecone pc = new Pinecone.Builder("YOUR_API_KEY").build();
        List<CollectionModel> collectionList = pc.listCollections().getCollections();
        System.out.println(collectionList);
    }
}
```

```go Go theme={null}
package main

import (
    "context"
    "encoding/json"
    "fmt"
    "log"

    "github.com/pinecone-io/go-pinecone/v2/pinecone"
)

func prettifyStruct(obj interface{}) string {
    bytes, _ := json.MarshalIndent(obj, "", "  ")
    return string(bytes)
}

func main() {
    ctx := context.Background()

    pc, err := pinecone.NewClient(pinecone.NewClientParams{
        ApiKey: "YOUR_API_KEY",
    })
    if err != nil {
        log.Fatalf("Failed to create Client: %v", err)
    }

    collections, err := pc.ListCollections(ctx)
    if err != nil {
	    log.Fatalf("Failed to list collections: %v", err)
    } else {
        if len(collections) == 0 {
            fmt.Printf("No collections found in project")
        } else {
            for _, collection := range collections {
                fmt.Printf("collection: %v\n", prettifyStruct(collection))
            }
        }
    }
}
```

```csharp C# theme={null}
using Pinecone;

var pinecone = new PineconeClient("YOUR_API_KEY");

var collectionList = await pinecone.ListCollectionsAsync();

Console.WriteLine(collectionList);
```

```shell curl theme={null}
PINECONE_API_KEY="YOUR_API_KEY"

curl -i -X GET "https://api.pinecone.io/collections" \
  -H "Api-Key: $PINECONE_API_KEY" \
  -H "X-Pinecone-Api-Version: 2024-07"
```

`GET /collections`

:::code-group
```bash title="cURL"
curl --request GET \
  --url https://api.pinecone.io/collections \
  --header 'Authorization: Bearer <token>'
```

```json title="200"
{
  "collections": [
    {
      "name": "example-collection",
      "size": 10000000,
      "status": "Initializing",
      "dimension": 1536,
      "vector_count": 120000,
      "environment": "us-east1-gcp"
    }
  ]
}
```
:::

## Authorizations

- `Authorization` (header, string, required) — Bearer authentication header of the form `Bearer <token>`.

## Response

- `200` — This operation returns a list of all the collections in your current project.
- `401` — Unauthorized. Possible causes: Invalid API key.
- `500` — Internal server error.

## Related pages

- [Create a backup of an index](./database-2026-07-control-plane-create-backup.md)
- [List backups for all indexes in a project](./database-2026-07-control-plane-list-project-backups.md)
- [List backups for an index](./database-2026-07-control-plane-list-index-backups.md)
- [Describe a backup](./database-2026-07-control-plane-describe-backup.md)
- [Delete a backup](./database-2026-07-control-plane-delete-backup.md)
- [Create an index from a backup](./database-2026-07-control-plane-create-index-from-backup.md)
- [List restore jobs](./database-2026-07-control-plane-list-restore-jobs.md)
- [Describe a restore job](./database-2026-07-control-plane-describe-restore-job.md)
- [List collections](./database-2026-07-control-plane-list-collections.md)
- [Create a collection](./database-2026-07-control-plane-create-collection.md)

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