Claude Code Router is an open-source routing harness developed by MusiStudio designed to orchestrate and proxy API requests generated by the Claude Code CLI. It functions as an intermediary middleware layer, intercepting outbound requests from Claude Code and distributing them across alternative backends, models, or custom API endpoints. In standard workflows, the router executes either as a local background daemon or within a containerized Docker setup. It reroutes API calls issued during coding sessions, allowing developers to direct model execution through various upstream providers, custom account authentications, or local proxy setups. Configuration is handled via structured configuration files and scripts that define routing pipelines and provider mappings. Unlike standalone coding agents that execute tasks directly, Claude Code Router acts specifically as an orchestrator and proxy pipeline for the official Claude Code CLI. This architecture enables developers to leverage the standard Claude Code developer interface while decoupling it from rigid upstream API limitations or direct single-provider endpoints. Claude Code Router is released under the permissive MIT open-source license. It is available as a community-driven repository with active Docker workflows, browser helper extensions, and customizable runtime plugins.
Tags: agent harness, ai agent, cli, coding agent, developer tools, OpenSource