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The best CRS alternatives

5 tools that do a similar job to CRS, 5 of them open source. Each entry says what it does and who it suits, so you can pick the one that fits instead of the most famous.

You're replacing

CRS

Self-hosted relay that lets a small group share Claude, OpenAI, Gemini and Droid subscriptions through one ser

  1. 1

    magpie

    Open source · MIT · ★ 28.2k

    A local gateway that lets AI coding agents like Claude Code and Codex use models from other providers.

    Best for: People who use more than one AI coding agent and want one place to manage their models; Users with several provider accounts or API keys who want automatic fallback when a quota runs out

    Full review CRS vs magpie
  2. 2

    Happy

    Open source · MIT · ★ 24.4k

    A multi-model coding agent app that runs Claude, Codex and Grok, with a phone companion, using your existing s

    Best for: Developers who already pay for Claude, Codex or Grok subscriptions and want one interface for them; People who want to check on a running coding agent from their phone

    Full review CRS vs Happy
  3. 3

    OmniRoute

    Open source · MIT · ★ 83.8k

    A free, MIT-licensed gateway that routes one API endpoint to many AI model providers.

    Best for: Developers who use several AI coding tools and want one place to configure providers; People who want to connect their own free-tier provider accounts and spread requests across them

    Full review
  4. 4

    AI Website Cloner

    Open source · MIT · ★ 38.4k

    A template that has an AI coding agent copy a website into a clean Next.js app.

    Best for: Developers who want a working Next.js starting point for a site they already own; Teams migrating a site off WordPress, Webflow, or Squarespace

    Full review
  5. 5

    Claude HUD

    Open source · MIT · ★ 29.1k

    A status line plugin for Claude Code that shows context use, rate limits, active tools, agents, and todos.

    Best for: Developers who use Claude Code daily and want to see context usage at a glance; People on subscriber plans who want to track rate limits while working

    Full review

How we pick: tools in the same category that solve the same problem, projects that name each other as alternatives, and open-source projects that describe themselves as an alternative to CRS. We don't take payment for placement.