Ungate

Ungate is an open source extension for Cursor that lets you use Claude, GPT and MiniMax models in Cursor's native chat through the subscriptions you already pay for, instead of buying API tokens on top. It is published on the Open VSX registry under the MIT license by orchidfiles. You sign in to Claude and ChatGPT through the browser with OAuth, and setup takes about a minute. Cursor keeps its own tools, context, model picker and diff review. A local proxy sits behind Cursor's custom OpenAI Base URL setting and translates each request into the target provider's API format, including streamed responses, tool calls and images where the provider supports them. Because Cursor calls that URL from its own backend, the extension also runs a Cloudflare tunnel to give the proxy a public address. A dashboard opened from the status bar manages providers, models, the tunnel and the proxy API key. A typical workflow drafts a solution with GPT, switches to Claude for review, then turns the proxy off to implement with Cursor's Composer, all in one chat. Requirements are Cursor Pro with custom OpenAI provider settings enabled, access to the models you want and Node.js 22, 24, 25 or 26. The extension is free. The author states it is unofficial, unaffiliated with Cursor, Anthropic or OpenAI, that subscription limits still apply, and that using a subscription through a third party client may conflict with a provider's terms.