model-gateway

A Claude Code plugin that adds ChatGPT/Codex and Grok subscription models to Claude Code's model picker. It routes each selected model to the matching service and sends other models to Anthropic.

In plain words
What is it for?
Using ChatGPT/Codex, Grok, and Claude models from Claude Code through a local routing service.
Why use it?
It lets developers switch among Claude, GPT, and Grok during a session through one model list, without separate API keys.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add Eigenwise/eigenwise-toolshed
agentmods
npx agentmods add plugins/eigenwise/eigenwise-toolshed/model-gateway
Clone the repo
git clone --depth 1 https://github.com/Eigenwise/eigenwise-toolshed

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

model-gateway scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/model-gateway/.claude-plugin/plugin.json · 23 lines

What it actually says

{
  "name": "model-gateway",
  "version": "0.48.18",
  "description": "Your ChatGPT/Codex and Grok subscription models in Claude Code's /model picker. A local gateway routes claude-gpt-* models to OpenAI's Codex backend, claude-grok-* models to Grok, and everything else to api.anthropic.com, so you switch between Claude, GPT-5.x, and Grok mid-session like any other model. No API keys.",
  "author": {
    "name": "Eigenwise",
    "email": "[email protected]"
  },
  "homepage": "https://github.com/Eigenwise/eigenwise-toolshed/tree/main/plugins/model-gateway",
  "repository": "https://github.com/Eigenwise/eigenwise-toolshed",
  "license": "MIT",
  "keywords": [
    "codex",
    "openai",
    "gpt",
    "chatgpt",
    "model-picker",
    "gateway",
    "proxy",
    "subscription"
  ]
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 23 lines scan A 856962aa72c3

Subscribe to this mod's changes

model-gateway is a plugin published in the GitHub repository Eigenwise/eigenwise-toolshed (36 stars, last pushed 4d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.