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

# Chainstack updates: April 28, 2023

> Debug and trace APIs are now available for elastic Arbitrum archive nodes, unlocking advanced contract introspection and transaction analysis on Arbitrum.

**Debug and trace API** are now available for elastic Arbitrum archive nodes.