---
title: Quick start
description: 'Authenticate, write, and query with the API: Check the status of your InfluxDB 3 Cloud instance. curl "https://cluster-host.a.influxdb.io/ping" \ --header "Authorization: Bearer AUTH_TOKEN" Write data to a database. curl "https://cluster-host.a.influxdb.io/api/v3/write_lp?db=sensors&precision=auto" \ --header "Authorization: Bearer AUTH_TOKEN" \ --data-raw "home,room=Kitchen temp=72.0 home,room=Living\ room temp=71.5"If all data is written, the response is 204 No Content. Query data from a datab'
url: https://docs.influxdata.com/influxdb3/cloud/api/quick-start/
estimated_tokens: 280
product: InfluxDB 3 Cloud
version: cloud
publisher: InfluxData
canonical: https://docs.influxdata.com/influxdb3/cloud/api/quick-start/
---

[Download InfluxDB 3 Cloud API Spec](/openapi/influxdb3-cloud-openapi.yml)

Authenticate, write, and query with the API:

1. Check the status of your InfluxDB 3 Cloud instance.

   ```
   curl "https://cluster-host.a.influxdb.io/ping" \
      --header "Authorization: Bearer AUTH_TOKEN"
   ```

2. Write data to a database.

   ```
   curl "https://cluster-host.a.influxdb.io/api/v3/write_lp?db=sensors&precision=auto" \
     --header "Authorization: Bearer AUTH_TOKEN" \
     --data-raw "home,room=Kitchen temp=72.0
    home,room=Living\ room temp=71.5"
   ```

   If all data is written, the response is `204 No Content`.

3. Query data from a database.

   ```
   curl -G "https://cluster-host.a.influxdb.io/api/v3/query_sql" \
     --header "Authorization: Bearer AUTH_TOKEN" \
     --data-urlencode "db=sensors" \
     --data-urlencode "q=SELECT * FROM home WHERE room='Living room'" \
     --data-urlencode "format=jsonl"
   ```

   Output:

   ```
   {"room":"Living room","temp":71.5,"time":"2025-02-25T20:19:34.984098"}
   ```

For more information, see the [Get started](/influxdb3/cloud/get-started/) guide.