> For the complete documentation index, see [llms.txt](https://fastlane-labs.gitbook.io/polygon-fastlane/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fastlane-labs.gitbook.io/polygon-fastlane/searcher-guides/4337-bundles-integration-guide.md).

# 4337 Bundles Integration Guide

Polygon FastLane is an easy to integrate protocol that rewards participating validators for protecting the health of the Polygon blockchain.

The connections maintained with Polygon validators enable PFL to act as a 4337-bundle relay, enhancing transaction reliability for participants.