Is Cursor Down? Complete Status & Troubleshooting Guide

Cursor has become the default code editor for hundreds of thousands of developers who rely on its AI-powered features — Tab completion, inline editing, Composer, and Chat. When Cursor's AI services go down, it doesn't just slow you down. It can halt your entire workflow if you've built muscle memory around AI-assisted coding.

This guide helps you quickly determine whether Cursor is actually down, diagnose the specific issue, fix it if possible, and switch to alternatives when needed.

Understanding Cursor's Architecture (Why It Goes Down)

Unlike traditional code editors that run entirely on your machine, Cursor has a split architecture that makes it uniquely vulnerable to outages:

What Runs Locally (Never "Goes Down")

• The code editor itself (VS Code fork)
• File operations, syntax highlighting, and formatting
• Extensions and the terminal
• Git integration and source control
• Keyboard shortcuts and local settings

What Runs in the Cloud (Can Go Down)

• Tab completion — AI-generated code suggestions
• Cmd+K / Ctrl+K — Inline AI editing
• Chat — The AI conversation panel
• Composer — Multi-file AI editing sessions
• Authentication — Sign-in and subscription verification
• Settings sync — Cross-device configuration

The Proxy Chain

When you trigger an AI feature in Cursor, your request travels through a chain:

Your editor → Cursor's backend servers → AI provider (OpenAI/Anthropic/Google) → Response

A failure at any point in this chain causes AI features to fail. This is why Cursor can appear "down" even when Cursor's own infrastructure is healthy — if OpenAI is having a bad day, so is Cursor.

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Diagnosing Cursor Issues

Step 1: Is It Cursor or Your Machine?

Run this quick diagnostic:

1. Open a browser and visit status.cursor.com — if the page loads, your internet is working
2. Try a non-AI Cursor feature (open a file, run a terminal command) — if this works, it's an AI/cloud issue
3. Check Activity Monitor (macOS) or Task Manager (Windows) for Cursor's CPU/memory usage — if above 80% CPU or 4GB+ RAM, it's a local performance issue

Step 2: Identify the Specific Failure

Symptom	Likely Cause	Fix
Editor won't open at all	Local installation issue	Reinstall Cursor
Editor opens but ALL AI fails	Cursor backend down	Wait or use alternatives
Only Tab completions fail	Tab completion service or rate limit	Check model settings
Only Chat/Composer fails	Chat service or context limits	Reduce context, try new chat
"Sign in" loop	Auth service issue	Clear auth cache
Extremely slow AI responses	Peak load or network issues	Try a different model
Features work but give poor results	Not an outage — model quality issue	Switch models

Step 3: Check Upstream Dependencies

Cursor's AI features depend on multiple upstream providers:

• OpenAI (GPT-4, GPT-4o) — Powers default completions and chat
• Anthropic (Claude 3.5/4 Sonnet, Claude Opus) — Available as alternative model
• Google (Gemini) — Available in recent Cursor versions
• Cursor's own infrastructure — Authentication, routing, rate limiting

Check all of these on API Status Check to pinpoint where the failure is occurring. If OpenAI is down but Anthropic is healthy, simply switch your model in Cursor Settings → Models.

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Common Issues and Solutions

1. AI Features Not Working (Most Common)

This is the most frequent Cursor "outage" — the editor works, but AI is unresponsive.

Symptoms:

• Tab completion not generating suggestions
• Cmd+K timing out or returning errors
• Chat panel spinning or showing error messages
• Composer failing to generate changes
• "AI service unavailable" or "Request failed" messages

Solutions (in order):

1. Switch AI models — Go to Settings → Models and try a different provider. If GPT-4o isn't responding, switch to Claude Sonnet.
2. Check your usage limits — Pro users have monthly fast-request limits. If exhausted, you'll get slow-mode responses.
3. Restart the AI service — Open Command Palette (Cmd+Shift+P) → "Cursor: Restart AI"
4. Check your network — Try curl https://api.cursor.com/health in your terminal. If it fails, it's a network issue.
5. Wait it out — Most AI service interruptions resolve within 15-30 minutes.

2. Authentication and Subscription Issues

Symptoms:

• Stuck in a "Sign in" loop
• Pro subscription not recognized (showing Free tier limits)
• "Session expired" errors repeatedly
• Can't link GitHub/Google account

Solutions:

1. Sign out completely — Settings → Account → Sign Out
2. Clear auth cache:

   # macOS
   rm -rf ~/.cursor-tutor/auth*
   rm -rf ~/Library/Application\ Support/Cursor/auth*
   
   # Windows
   del %APPDATA%\Cursor\auth*
   
   # Linux
   rm -rf ~/.config/Cursor/auth*
   

3. Sign back in — Use the same method (GitHub/Google/email) you originally signed up with
4. Check your subscription — Log in at cursor.com/settings in a browser to verify your plan is active

🔐 Tired of authentication loops? 1Password auto-fills your Cursor login and stores SSO credentials securely — no more "which email did I sign up with?" confusion.

3. Performance Degradation

Cursor can become sluggish even when it's not technically "down." This usually stems from local resource exhaustion or oversized projects.

Symptoms:

• Multi-second delay on keystrokes
• High CPU usage (60%+ sustained)
• Memory usage above 4GB
• Freezing during AI operations
• Extension host crashing

Solutions:

1. Check project size — Cursor indexes your entire workspace for AI context. Projects with 100K+ files or large node_modules can overwhelm it.

   # Check workspace size
   find . -type f | wc -l
   

2. Add a .cursorignore file — Similar to .gitignore, this tells Cursor what to skip:

   node_modules
   .next
   dist
   build
   *.min.js
   vendor
   

3. Disable resource-heavy extensions — Some VS Code extensions conflict with Cursor's AI features. Common culprits: Prettier (if running on save for large files), ESLint with broad rules, other AI extensions (Copilot, Cody, Continue).
4. Reduce AI context — In Settings, lower the max tokens for context or disable automatic file indexing for large projects.
5. Reinstall if persistent — Export your settings, uninstall Cursor completely, delete ~/.cursor, and reinstall fresh.

4. Extension Compatibility Issues

Since Cursor is a VS Code fork, most extensions work — but not all, and conflicts are common.

Known conflicts:

• GitHub Copilot — Can fight with Cursor's Tab completion. Disable one or the other.
• Cody (Sourcegraph) — Similar conflict with AI features.
• Tabnine — Multiple AI completion engines cause confusion.
• Some Vim extensions — Key binding conflicts with Cursor's AI shortcuts.

Solution: Disable extensions one at a time to isolate conflicts. Start with any other AI/completion extensions.

5. Update-Related Issues

Cursor releases updates frequently, and new versions occasionally introduce regressions.

Symptoms:

• Editor behaves differently after an update
• Features that worked yesterday are now broken
• New crashes or freezes after updating

Solutions:

1. Check the changelog — Visit cursor.com/changelog to see if others report issues with the latest version
2. Downgrade — Download the previous version from the changelog page and install it over the current version
3. Disable auto-updates — In Settings, search for "update mode" and set it to "manual" if you prefer stability

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What to Do When Cursor Is Actually Down

When Cursor's AI services are genuinely down and you need to keep working, here are your options:

Immediate Fallback: VS Code

Since Cursor is built on VS Code, this is the smoothest transition:

1. Open VS Code (install it if you haven't — code.visualstudio.com)
2. Open the same workspace folder
3. Your file structure, Git state, and most extensions carry over
4. Add temporary AI with GitHub Copilot Free (2,000 completions/month) or Continue (open-source, works with your own API keys)

AI Coding Alternatives

• GitHub Copilot in VS Code — The most direct replacement for Cursor's AI features
• Windsurf (by Codeium) — Another AI-first editor, similar to Cursor
• Claude Code — Terminal-based AI coding assistant from Anthropic
• Aider — Open-source terminal AI coding with multi-model support
• Claude.ai or ChatGPT — Paste code into the browser for AI assistance

For Teams

If your team relies on Cursor for daily development:

1. Maintain VS Code as a parallel install — Zero cost, instant fallback
2. Set up status monitoring — Use API Status Check to get alerts before developers discover issues themselves
3. Document your AI workflow — Which model settings, which system prompts, which .cursorrules — so the team can quickly replicate the setup if switching editors
4. Have API keys ready — If you use custom API keys with Cursor, you can use the same keys with VS Code extensions like Continue
5. Consider Cursor Business — The Business tier includes priority support and potentially faster incident resolution

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Cursor Outage Patterns

Based on historical data, Cursor outages follow predictable patterns:

By Type (Most to Least Common)

1. AI service degradation (45%) — Slow responses, intermittent failures, partial functionality. Usually resolves in 15-30 minutes.
2. Upstream provider outages (25%) — When OpenAI or Anthropic have issues, Cursor's AI features fail. Resolution depends on the upstream provider.
3. Authentication issues (15%) — Sign-in problems, subscription verification failures. Usually fixed within 1-2 hours.
4. Update regressions (10%) — Bugs introduced by new Cursor versions. Fixed in the next patch release (usually 1-3 days).
5. Complete infrastructure outage (5%) — Rare. Everything fails including the status page. Typically resolved within 2-4 hours.

By Timing

• Peak impact hours: 9 AM – 5 PM Pacific (when the majority of Cursor's developer user base is actively coding)
• Common outage windows: Tuesday–Thursday midday (highest usage periods)
• Update-related issues: Often appear within 24 hours of a new release
• Upstream cascades: Follow OpenAI/Anthropic outage patterns (check the API outage alerts guide for monitoring tips)

Notable Outages

• March 2026: Multiple AI service degradations during the Claude 4 model transition period, as Cursor updated its backend routing
• Early 2026: Authentication service issues affecting Pro subscription verification, lasting several hours
• Late 2025: Extended AI outage during an OpenAI incident that cascaded to all downstream consumers including Cursor

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Set Up Cursor Monitoring

📡 Get ahead of Cursor outages. Better Stack monitors Cursor's AI endpoints and upstream providers (OpenAI, Anthropic, Google) — alerting you via Slack or PagerDuty before your team notices AI features are down.

Don't wait for Cursor to break to find out it's broken. Set up proactive alerts:

1. API Status Check (Recommended)

API Status Check monitors Cursor alongside 200+ other developer APIs. You'll know about outages before they impact your work.

• Real-time status updates every minute
• Email alerts when Cursor's status changes
• Historical uptime data and incident tracking
• Also monitors Cursor's dependencies (OpenAI, Anthropic) so you can see cascading failures

2. Official Status Page

Subscribe to updates at status.cursor.com:

• Email notifications for incidents
• Scheduled maintenance announcements
• Post-incident reports

3. Community Channels

• @cursor_ai on Twitter — Official account for announcements
• Cursor Discord — Fastest peer reports during outages
• r/cursor on Reddit — Discussion and workaround sharing

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Cursor vs. VS Code: The Reliability Trade-Off

Developers often ask: "Should I rely on Cursor or stick with VS Code?"

The honest answer: Cursor adds a cloud dependency that VS Code doesn't have. VS Code never "goes down" because it runs entirely locally. Cursor's AI features are powerful enough to justify the trade-off for most developers, but you should understand what you're opting into.

Cursor is the better choice when:

• You actively use AI for code generation, refactoring, and debugging
• You're willing to accept occasional AI service interruptions
• You want an integrated AI experience (not a separate plugin)
• You keep VS Code installed as a fallback

VS Code (with plugins) is the better choice when:

• Uptime reliability is non-negotiable (mission-critical production environments)
• You prefer modular AI tools you can swap independently
• Your company policy restricts cloud-dependent development tools
• You work frequently in offline or restricted-network environments

Either way, monitor your critical developer tools with API Status Check so you're never caught off guard.

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Stay ahead of Cursor outages. API Status Check monitors Cursor and 200+ APIs developers depend on daily. Set up alerts and know about downtime before it disrupts your workflow.