Cursor OpenAI API

A standalone CLI that serves Cursor's API as an OpenAI-compatible endpoint.

Sponsor

ChatWise - All-in-one agentic chat app.

Features

• OAuth authentication with Cursor
• OpenAI-compatible /v1/chat/completions endpoint
• Automatic model discovery from your Cursor account
• Tool calling support
• Streaming responses

NPM

npm i -g cursor-openai-api

cursor-openai-api login
cursor-openai-api serve

Docker

# Pull the image
docker pull ghcr.io/egoist/cursor-openai-api:latest

# Run
docker run -p 3000:3000 \
  -v ~/.config/cursor-openai-api:/home/appuser/.config/cursor-openai-api \
  ghcr.io/egoist/cursor-openai-api:latest login
docker run -p 3000:3000 \
  -v ~/.config/cursor-openai-api:/home/appuser/.config/cursor-openai-api \
  ghcr.io/egoist/cursor-openai-api:latest serve

Credentials are stored in ~/.config/cursor-openai-api/credentials.json.

Commands

cursor-openai-api login

Authenticate with Cursor via OAuth browser flow.

cursor-openai-api login

cursor-openai-api logout

Clear stored credentials.

cursor-openai-api logout

cursor-openai-api whoami

Check authentication status.

cursor-openai-api whoami

cursor-openai-api models

List available Cursor models.

cursor-openai-api models

cursor-openai-api serve

Start the OpenAI-compatible proxy server. Uses PORT environment variable (default: 3000).

PORT=3000 cursor-openai-api serve

The server exposes:

• POST /v1/chat/completions - Chat completions endpoint
• GET /v1/models - List available models

cursor-openai-api status

Check if the proxy server is running.

cursor-openai-api status

Usage with OpenAI SDK

import OpenAI from "openai"

const client = new OpenAI({
  apiKey: "cursor", // any non-empty string
  baseURL: "http://localhost:3000/v1",
})

const chat = await client.chat.completions.create({
  model: "claude-4-sonnet",
  messages: [{ role: "user", content: "Hello!" }],
})

Requirements

• Bun or Node.js 18+
• macOS, Linux, or WSL
• A Cursor account with API access

Development

# Install dependencies
bun install

# Run without building
bun run src/cli.ts serve

# Build for production
bun run build

Publishing

Push a tag to trigger the Docker build:

git tag v0.0.1
git push origin v0.0.1

Prior art

This project is modified from https://github.com/ephraimduncan/opencode-cursor