MCP servers · OpenAI · MCP server
Connect Cursor to OpenAI
One line gives Cursor your OpenAI account as tools: 4 endpoints, generate image, create embedding, text to speech, called with your own connection. No key in the prompt, a receipt for every call, revoke Cursor's access alone any time.
Three steps
- Create a free 0n3 account and connect OpenAI. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Cursor. One-click install link, or the mcp.json block.
- Ask Cursor: whoami. Then: "Create an image in OpenAI".
One-click install
The line above carries a placeholder; 0n3.app/install mints a real key named for Cursor and fills it in.
What Cursor can then do in OpenAI
Generate image · Generate images with DALL-E1
Create an image
POST /images/generationsCreate embedding · Create text embeddings1
Create an embedding
POST /embeddingsText to speech · Convert text to speech1
Text to speech
POST /audio/speechGenerate text · Generate text completions0
Generate text completions
More · Everything else this app exposes.1
Chat completion
POST /chat/completionsOpenAI in other AI clients
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