• Docs
  • Docs
Quick Start
Agent setup
Claude Code setup
Codex setup
Cursor setup
Visual Studio Code Copilot setup
Web browser proxy setup
LangGraph / LangChain
SDK setup
Vertex AI

Cursor setup

Route Cursor through aiproxy so every AI request the editor issues stays visible. Cursor includes an embedded agent that talks to Codex/Copilot APIs through their proprietary GRPX endpoint. Putting aiproxy in the middle lets you log, audit, or mutate each call without modifying individual integrations.

Prerequisites

  • aiproxy running locally (examples use http://localhost:8080)
  • Install the aiproxy certificate authority (see Quick Start → TLS certificate)
  • Cursor version 0.45 or newer

Step 1 · Enable HTTP compatibility mode

Cursor defaults to HTTP/2 networking, which many forward proxies cannot handle. Switch to HTTP/1.1 for proxy support:

  1. Open Cursor Settings (⇧⌘J or Ctrl+Shift+J).
  2. Select the Network tab.
  3. Enable HTTP Compatibility Mode and choose HTTP/1.1.

Restart Cursor after toggling the setting.

Step 2 · Point Cursor at aiproxy

Cursor inherits the VS Code networking stack. Update the built-in VS Code settings to use aiproxy:

  1. Press ⌘, (macOS) or Ctrl+, (Windows/Linux) to open Settings.
  2. Search for Proxy.
  3. Under Application → Proxy, set the value to http://localhost:8080.

If you run Cursor via Flatpak or another sandbox, ensure the sandbox trusts the aiproxy certificate authority as outlined in the VS Code Copilot guide.

Step 3 · Verify traffic

Run a simple request from Cursor—for example, open the command palette and ask the agent to summarize the current file. Watch the aiproxy logs or terminal UI for traffic hitting /v1/ endpoints. If you do not see traffic:

  • Confirm HTTP compatibility mode remains on
  • Ensure the proxy value still points at http://localhost:8080
  • Verify the certificate authority appears in your OS trust store

    On this page

  • Prerequisites
  • Step 1 · Enable HTTP compatibility mode
  • Step 2 · Point Cursor at aiproxy
  • Step 3 · Verify traffic