> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Chainstack updates: October 7, 2026

> Multichain API lets you use one auth token across the Global Nodes and Dedicated Nodes you attach to a multichain endpoint.

**Multichain API**. You can now use one auth token across the [Global Nodes](https://docs.chainstack.com/docs/global-elastic-node.md) and [Dedicated Nodes](https://docs.chainstack.com/docs/dedicated-node.md) you attach to a multichain endpoint, instead of one auth token per node. Available on every plan, including the Developer plan. See [Use Multichain API](https://docs.chainstack.com/docs/multichain-api.md).