Cursor error
Cursor: Service unavailable
Service unavailableStatus: WorkaroundLast verified 3 documented fixes2 sources
What it means
NetworkError from the Cursor TypeScript SDK (typical messages "Service unavailable" or "Timeout"): a transient backend issue, network partition, or exceeded deadline.
Causes
- Transient backend issue.
- Network partition.
- Deadline exceeded.
How to fix it
- Fix 1.
Retry with backoff.
- Fix 2.
Inspect error.requestId if you need to file a support ticket.
- Fix 3.
For the Python SDK, enable debug logging while troubleshooting.
TerminalCURSOR_SDK_LOG=debug python my_script.py
More Cursor errors
All 18 Cursor errorsAgent Execution Timed OutStatus: WorkaroundTimeout waiting for EverythingProviderStatus: Workaround<filename> is too large (4MB limit)Status: By designCursor is damagedStatus: Workaroundsuspicious activityStatus: Workaroundxcrun: error: unable to find utility "mcpbridge"Status: Workaroundmissing tabIdentifierStatus: WorkaroundPrivate worker limit exceededStatus: By design
Related reading
- Do Your Agent Hooks Fail Open? Claude Code vs Codex vs Cursor vs Gemini CLIA guard hook that crashes, times out or points at a missing script lets the tool call through by default in Claude Code. v2.1.295 adds onFailure: block. Here is what each coding agent does when your policy hook breaks, with real test runs.
- How to Keep API Keys Away From Your AI Coding Agent: Claude Code vs Codex vs Cursor vs Gemini CLIA deny rule on .env stops cat but not a Python one-liner. Here are the three layers that actually keep secrets out of a coding agent's context - file rules, environment scrubbing and credential masking - and what Claude Code, Codex, Cursor and Gemini CLI give you for each, with real test runs.
- Antigravity vs Cursor (2026): Pricing, Limits, Models, and Which to PickAntigravity vs Cursor: Antigravity is free with a weekly limit; Cursor starts at $20/month with the widest model menu. Pricing, limits and a decision guide.
- Slack Code vs Claude Code vs Cursor vs OpenCode: When Agents Belong in ChatSlack Code gives coding agents their own Slack channels with diffs, previews, and an audit log. When it beats Claude Code, Cursor, or OpenCode, and when not.
- Cursor Removes Dollar Costs From Usage Page: Tokens OnlyCursor removed dollar costs from its Usage page on July 31: self-serve plans see tokens only and the dashboard API zeroes cost fields, history included.
- AI Coding Agent Security Models Compared 2026: Permissions, Sandboxing, and Threat Models for Every Major ToolAI coding agent security models compared: how Claude Code, Cursor, Codex, Copilot, Aider and Windsurf handle permissions, sandboxing and prompt injection.
FAQ
What does "Service unavailable" mean in Cursor?
NetworkError from the Cursor TypeScript SDK (typical messages "Service unavailable" or "Timeout"): a transient backend issue, network partition, or exceeded deadline.
How do I fix "Service unavailable"?
There are 3 documented fixes. Start with the first: Retry with backoff.
Is this Cursor error fixed?
Status: Workaround. No release removes the cause. The documented fixes work around it.
Sources
Last verified against 2 sources: official docs, maintainer replies and release notes.
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