---
title: C# client library
description: Use the InfluxDB C# client library to interact with InfluxDB.
url: https://docs.influxdata.com/influxdb3/cloud-serverless/reference/client-libraries/v2/csharp/
estimated_tokens: 300
product: InfluxDB Cloud Serverless
version: cloud-serverless
---

# C# client library

### Use InfluxDB 3 clients

The `/api/v2/query` API endpoint and associated tooling, such as InfluxDB v2 client libraries and the `influx` CLI, **can’t** query an InfluxDB Cloud Serverless cluster.

[InfluxDB 3 client libraries](/influxdb3/cloud-serverless/client-libraries/v3/) are available that integrate with your code to write and query data stored in InfluxDB Cloud Serverless.

InfluxDB 3 supports many different tools for [**writing**](/influxdb3/cloud-serverless/write-data/) and [**querying**](/influxdb3/cloud-serverless/query-data/) data. [**Compare tools you can use**](/influxdb3/cloud-serverless/get-started/#tools-to-use) to interact with InfluxDB Cloud Serverless.

C# is a general-purpose object-oriented programming language.

The documentation for this client library is available on GitHub.

[C# InfluxDB client](https://github.com/influxdata/influxdb-client-csharp)