For guidance, examples, and limits, see [Upsert data](/guides/index-data-upsert-data).

:::callout{intent="tip"}
To control costs when ingesting large datasets (10,000,000+ records), use [import](/guides/index-data-import-data) instead of upsert.
:::

```shell 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/vectors/upsert" \
  -H "Api-Key: $PINECONE_API_KEY" \
  -H 'Content-Type: application/json' \
  -H "X-Pinecone-Api-Version: 2025-10" \
  -d '{
    "vectors": [
      {
        "id": "vec1",
        "values": [0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1],
        "metadata": {"genre": "comedy", "year": 2020}
      },
      {
        "id": "vec2",
        "values": [0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2],
        "metadata": {"genre": "documentary", "year": 2019}
      }
    ],
    "namespace": "example-namespace"
  }'
```

`POST /vectors/upsert`

:::code-group
```bash title="cURL"
curl --request POST \
  --url https://{index_host}/vectors/upsert \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "vectors": [
    {
      "id": "example-vector-1",
      "values": [
        0.1,
        0.2,
        0.3,
        0.4,
        0.5,
        0.6,
        0.7,
        0.8
      ],
      "sparseValues": {
        "indices": [
          1,
          312,
          822,
          14,
          980
        ],
        "values": [
          0.1,
          0.2,
          0.3,
          0.4,
          0.5
        ]
      },
      "metadata": {
        "genre": "documentary",
        "year": 2019
      }
    }
  ],
  "namespace": "example-namespace"
}'
```

```json title="200"
{
  "upsertedCount": 2
}
```
:::

## 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

- `vectors` (body, object\[], required) — An array containing the vectors to upsert. Recommended batch limit is up to 1000 vectors.
- `namespace` (body, string) — The namespace where you upsert vectors.

## Response

- `200` — A successful response.
- `400` — Bad request. The request body included invalid request parameters.
- `4XX` — An unexpected error response.
- `5XX` — An unexpected error response.

## Related pages

- [Search with a vector](./database-2026-07-data-plane-query.md)
- [Search with text](./database-2026-07-data-plane-search-records.md)
- [Upsert records](./database-2026-07-data-plane-upsert.md)
- [Upsert text](./database-2026-07-data-plane-upsert-records.md)
- [Fetch records](./database-2026-07-data-plane-fetch.md)
- [Fetch records by metadata](./database-2026-07-data-plane-fetch-by-metadata.md)
- [Update a record](./database-2026-07-data-plane-update.md)
- [Delete records](./database-2026-07-data-plane-delete.md)
- [List record IDs](./database-2026-07-data-plane-list.md)
- [Search with a vector](./database-2026-04-data-plane-query.md)

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