Open source · January 2026 · Updated November 6, 2026
The Polydev Local Client Is Open Source Under Apache-2.0
The local client, the npm package polydev-ai, is published under the Apache-2.0 licence. This page says what that covers and how to run it.
Status on November 6, 2026
An earlier version of this post said the code was not public yet. The local client is now published as polydev-ai version 1.12.0 under Apache-2.0, and its source ships in the package. The hosted link at https://polydev.ai/mcp is a service Polydev runs.
The licence
Apache-2.0 is a permissive licence: you can use, change and redistribute the local client, including commercially, under its terms. It also includes an explicit patent grant.
What the local client does
Polydev puts every AI model inside the app you already use. Most people only need the hosted link. The local client runs on your own machine (Node.js 20 or newer) and adds three things:
- Image models
generate_imagemakes images with OpenAI or Google models, such as GPT Image or Nano Banana. Your key, or one free request.- Your ChatGPT plan
Continue with ChatGPT (
connect_chatgpt_plan) and GPT requests use your Plus or Pro plan. The sign-in tokens stay on your machine.- Your Claude Code and Codex
It can run the Claude Code and Codex you are signed in to, under your own login. It never runs the CLI of the app that called it.
For Claude Code:
claude mcp add polydev -- npx -y polydev-ai@latestOther apps: command npx, arguments -y polydev-ai@latest. The first call opens your browser to sign in. The local client still signs in to the Polydev service for API keys, OpenRouter and the free requests; it is not a self-hosted copy of Polydev.
The hosted link
Nothing to install. Add one link to Claude, ChatGPT, Claude Code, Codex, Cursor, VS Code, Windsurf or Cline, and sign in once in the browser:
Steps for each app are on the install page. Polydev is free, with no plans or credits to buy. 10 free requests to try, up to $1 with no card. After that, your ChatGPT plan (local client) or your own API keys pay, and every answer says which one did.
Switch models, not apps.
One link, one sign-in, every model from the app you already use.