---
title: InfluxDB HTTP API
description: Use the InfluxDB HTTP API to write data, query data, and manage databases, tables, and tokens.
url: https://docs.influxdata.com/influxdb3/cloud/api/
estimated_tokens: 289
product: InfluxDB 3 Cloud
version: cloud
publisher: InfluxData
canonical: https://docs.influxdata.com/influxdb3/cloud/api/
---

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

Use the InfluxDB 3 Cloud HTTP API to write data, query data, and manage databases, tables, and tokens.

### [Quick start](/influxdb3/cloud/api/quick-start/)

Authenticate, write, and query with the API:

### [Authentication](/influxdb3/cloud/api/authentication/)

Use one of the following schemes to authenticate to the InfluxDB 3 Cloud API:

### [Auth token](/influxdb3/cloud/api/auth-token/)

Create and manage tokens used for authenticating and authorizing access to InfluxDB 3 Cloud resources.

### [Database](/influxdb3/cloud/api/database/)

Create, list, and delete databases in InfluxDB 3 Cloud.

### [Query data](/influxdb3/cloud/api/query-data/)

Query data stored in InfluxDB 3 Cloud using SQL or InfluxQL.

### [Server information](/influxdb3/cloud/api/server-information/)

Retrieve health status and version information for your InfluxDB 3 Cloud instance.

### [Table](/influxdb3/cloud/api/table/)

Manage table schemas in an InfluxDB 3 Cloud database.

### [Write data](/influxdb3/cloud/api/write-data/)

Write data to InfluxDB 3 Cloud using line protocol format.