For guidance and examples, see [Manage namespaces](/guides/manage-data-manage-namespaces).

**Note:** This operation is not supported for pod-based indexes.

```bash curl theme={null}
# To get the unique host for an index,
# see https://docs.pinecone.io/guides/manage-data/target-an-index
PINECONE_API_KEY="YOUR_API_KEY"
INDEX_HOST="INDEX_HOST"

curl "https://$INDEX_HOST/namespaces" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -H "Api-Key: $PINECONE_API_KEY" \
  -H "X-Pinecone-Api-Version: 2025-10" \
  -d '{
        "name": "example-namespace",
        "schema": {
		  "fields": { 
            "document_id": {"filterable": true},
            "document_title": {"filterable": true},
            "chunk_number": {"filterable": true},
            "document_url": {"filterable": true},
            "created_at": {"filterable": true}
          }
        }
      }'
```

`POST /namespaces`

:::code-group
```bash title="cURL"
curl --request POST \
  --url https://{index_host}/namespaces \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "example-namespace",
  "schema": {
    "fields": {
      "description": {
        "filterable": true
      },
      "genre": {
        "filterable": true
      },
      "year": {
        "filterable": true
      }
    }
  }
}'
```

```json title="200"
{
  "name": "example-namespace",
  "record_count": 20000,
  "schema": {
    "fields": {
      "description": {
        "filterable": true
      },
      "genre": {
        "filterable": true
      },
      "year": {
        "filterable": true
      }
    }
  },
  "indexed_fields": {
    "fields": [
      "genre",
      "year",
      "author"
    ]
  }
}
```
:::

## Authorizations

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

## Headers

- `X-Pinecone-Api-Version` (header, string, required) — Required date-based version header

## Body

- `name` (body, string, required) — The name of the namespace.
- `schema` (body, object) — Schema for the behavior of Pinecone's internal metadata index. By default, all metadata is indexed; when `schema` is present, only fields which are present in the `fields` object with a `filterable: true` are indexed. Note that `filterable: false` is not currently supported.

## Response

- `200` — A successful response.
- `400` — Bad request. The request body included invalid request parameters.
- `409` — Namespace of the given name already exists on the index.
- `4XX` — An unexpected error response.
- `5XX` — An unexpected error response.

## Related pages

- [List namespaces](./database-2026-07-data-plane-listnamespaces.md)
- [Create a namespace](./database-2026-07-data-plane-createnamespace.md)
- [Describe a namespace](./database-2026-07-data-plane-describenamespace.md)
- [Delete a namespace](./database-2026-07-data-plane-deletenamespace.md)
- [List namespaces](./database-2026-04-data-plane-listnamespaces.md)
- [Create a namespace](./database-2026-04-data-plane-createnamespace.md)
- [Describe a namespace](./database-2026-04-data-plane-describenamespace.md)
- [Delete a namespace](./database-2026-04-data-plane-deletenamespace.md)
- [List namespaces](./database-2025-10-data-plane-listnamespaces.md)
- [Describe a namespace](./database-2025-10-data-plane-describenamespace.md)

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