If a vector value is included, it will overwrite the previous value. If `set_metadata` is included, only the specified metadata fields are modified, and if a specified metadata field does not exist, it is added.
For guidance and examples, see [Update data](/guides/manage-data-update-data).

```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/update" \
  -H "Api-Key: $PINECONE_API_KEY" \
  -H "Content-Type: application/json" \
  -H "X-Pinecone-Api-Version: 2026-07" \
  -d '{
        "id": "id-3",
        "values": [4.0, 2.0],
        "setMetadata": {"type": "comedy"},
        "namespace": "example-namespace"
      }'
```

`POST /vectors/update`

:::code-group
```bash title="cURL"
curl --request POST \
  --url https://{index_host}/vectors/update \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{}'
```

```json title="200"
{
  "matchedRecords": 42
}
```
:::

## 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

- `id` (body, string) — Vector's unique id.
- `values` (body, number\[]) — Vector data.
- `sparseValues` (body, object) — Vector sparse data. Represented as a list of indices and a list of corresponded values, which must be with the same length.
- `setMetadata` (body, object) — Metadata to set for the record. Field names may not begin with `$`, which is reserved for filter operators.
- `namespace` (body, string) — The namespace containing the record to update.
- `filter` (body, object) — A metadata filter expression. When updating metadata across records in a namespace, the update is applied to all records that match the filter. See [Understanding metadata](/guides/index-data-indexing-overview#metadata).
- `dryRun` (body, boolean) — If `true`, return the number of records that match the `filter`, but do not execute the update. Default is `false`.

## Response

- `200` — A successful response.
- `400` — Bad request. The request body included invalid request parameters.
- `401` — Unauthorized. Possible causes: missing or invalid API key.
- `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)
- [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)
- [Search with text](./database-2026-04-data-plane-search-records.md)

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