---
title: Write data with client libraries
description: Use client libraries to write data to InfluxDB.
url: https://docs.influxdata.com/influxdb/v2/write-data/developer-tools/client-libraries/
estimated_tokens: 257
product: InfluxDB OSS v2
version: v2
---

# Write data with client libraries

This page documents an earlier version of InfluxDB OSS. [InfluxDB 3 Core](/influxdb3/core/) is the latest stable version.

#### API token hashing is enabled by default in InfluxDB OSS 2.9.0

Stronger token security: tokens are stored as hashes on disk, so a copy of the database file doesn’t expose usable tokens. Existing tokens are hashed on first startup and the original strings can’t be recovered afterward — **capture any plaintext tokens you still need before you upgrade**.

For more information, see [Token hashing](/influxdb/v2/admin/tokens/#token-hashing).

Use language-specific client libraries to integrate with the InfluxDB v2 API.

See [Client libraries reference](/influxdb/v2/api-guide/client-libraries/) for more information.