Show HN: Limitbreak – Claude Code switches accounts mid-session on a limit (github.com)

Limitbreak is a new tool that allows users to seamlessly switch between multiple Claude accounts during a single session, automatically transitioning when an account hits its usage limit. By employing a small local proxy written in Go, Limitbreak intercepts requests sent to Anthropic's API and redirects them to a different account upon receiving a rate limit error (HTTP 429). This process ensures that users experience no interruption or loss of history as they interact with the Claude Code environment. This development is significant for the AI/ML community as it optimizes the use of multiple accounts, potentially enhancing productivity for users who rely on AI tools under constrained usage limits. The proxy maintains security by not exposing tokens and keeping account management straightforward, interfacing with credentials stored securely in the macOS Keychain or local files. With its user-friendly setup and logging capabilities, Limitbreak is a practical solution for professionals looking to maximize their use of cloud-based AI services while adhering to subscription limitations.