---
title: Use the InfluxDB HTTP API to write data
description: Use the InfluxDB v1 /write HTTP API endpoint to write data to InfluxDB Cloud Serverless.
url: https://docs.influxdata.com/influxdb3/cloud-serverless/write-data/http-api/
estimated_tokens: 192
publisher: InfluxData
canonical: https://docs.influxdata.com/influxdb3/cloud-serverless/write-data/http-api/
date: '2026-06-10T16:04:20-05:00'
lastmod: '2026-06-10T16:04:20-05:00'
---

Use the InfluxDB HTTP API to write data to InfluxDB Cloud Serverless.

### [Use the v1 write API](/influxdb3/cloud-serverless/write-data/http-api/v1-http/)

Use the InfluxDB v1 HTTP write API to write data stored in InfluxDB Cloud Serverless.

```sh
curl "https://cloud2.influxdata.com/write?db=DATABASE_NAME&rp=RETENTION_POLICY&precision=s" \
  --header "Authorization: Token API_TOKEN" \
  --header "Content-type: text/plain; charset=utf-8" \
  --data-binary 'home,room=kitchen temp=72 1463683075'
```

#### Related

* [Line protocol](/influxdb3/cloud-serverless/reference/syntax/line-protocol/)
* [Get started writing data](/influxdb3/cloud-serverless/get-started/write/)
* [Use the InfluxDB v1 HTTP API](/influxdb3/cloud-serverless/guides/api-compatibility/v1/)