shipper-is/opencursor

OpenCursor is a TypeScript extension for the Cursor editor. It lets you use models from OpenAI-compatible or Anthropic APIs inside Cursor, instead of only the models Cursor offers by default. OpenCursor stores each model's provider URL and API key, then routes Cursor requests through one local proxy. Installing requires Cursor, Node.js 20 or newer, and an HTTPS tunnel provider like ngrok or cloudflared on your PATH. macOS, Linux, and Windows are supported. You run a shell script from a clone of the repo, which checks your Node version, finds the Cursor CLI, builds the extension, and installs it into Cursor. You reload Cursor when it finishes. A manual install path is also available using npm and a generated VSIX file. Setup involves adding models through a setup page in Cursor's Command Palette. For each model you enter a display name, the exact model ID the provider expects, the provider API base URL, the API protocol, and the API key. You can add as many models as you need, and each can use a different provider, URL, and key. Then you start the proxy, which begins a local routing proxy bound to 127.0.0.1 and a public HTTPS tunnel Cursor can reach. After the proxy starts, you paste the Base URL and a generated proxy key into Cursor's model settings. You add the model names to Cursor's model picker, and your models become available. The same setup page lets you add, test, edit, disable, or delete models and restart the proxy. Provider API keys stay in Cursor's secure secret storage and are only sent to the upstream base URL you configure. The generated proxy key authenticates every request to the local proxy, and anyone with the public Base URL and that key can use your models, so you treat it like a password. Prompts and responses travel through the tunnel provider you choose and then to your model provider. The project has no maintainer telemetry and no phone-home behavior. Optional request logging stays local and is off by default.