# Sanity: Major incident: Sanity MCP Server Unavailability

**Summary:** Sanity’s MCP server (mcp.sanity.io) returned 500 errors, disrupting access through tools such as Claude and Cursor in a major-impact outage. It started at 2026-05-01 12:00 UTC and was resolved at 2026-05-01 13:19 UTC; the reported duration was 1 h 18 min. Sanity implemented a fix and monitored results before resolution. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-05-01 12:00 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/5hqlzlwsltvz](https://stspg.io/5hqlzlwsltvz)
- [Company: Sanity](https://rewindex.com/company/sanity.md)
- Versions: before (none: first archived) → after incident\_version:206/qzr9nk8s75sg@337a9d470ec7
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Sanity MCP Server Unavailability
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-05-01 12:00 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-05-01 13:19 UTC
```

**6. Added: Affected components**

```diff
+ MCP Server, Partner Integrations
```

**7. Added: Update** (investigating) · 2026-05-01 12:00 UTC

```diff
+ Our MCP server (mcp.sanity.io) is currently inoperative, returning 500 errors and impacting access via tools like Claude and Cursor. We are working to restore functionality.
```

**8. Added: Update** (identified) · 2026-05-01 12:46 UTC

```diff
+ We are implementing a fix that should resolve the issue.
```

**9. Added: Update** (identified) · 2026-05-01 12:48 UTC

```diff
+ We’ve identified the issue affecting the MCP server (mcp.sanity.io) and are actively working on a fix. We’ll share another update as soon as we have more information.
```

**10. Added: Update** (identified) · 2026-05-01 12:49 UTC

```diff
+ We are continuing to work on a fix for this issue.
```

**11. Added: Update** (identified) · 2026-05-01 13:08 UTC

```diff
+ We are continuing to work on a fix for this issue.
```

**12. Added: Update** (monitoring) · 2026-05-01 13:11 UTC

```diff
+ A fix has been implemented and we are monitoring the results.
```

**13. Added: Update** (resolved) · 2026-05-01 13:19 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-05-01 12:00 UTC | Major incident: Sanity MCP Server Unavailability (this change) | outage |

All Sanity changes: [timeline](https://rewindex.com/company/sanity/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/ic25dcb34560834 · Markdown: https://rewindex.com/change/ic25dcb34560834.md · JSON: https://rewindex.com/api/v1/changes/ic25dcb34560834 · Generated 2026-10-18T01:30:09.955Z