# Amplitude: Critical incident: Amplitude UI and MCP is down

**Summary:** Amplitude reported a critical outage affecting its UI, MCP and REST APIs, starting 2026-07-13 21:31 UTC and resolved at 2026-07-13 23:07 UTC (1 h 36 min). A fix was implemented; Amplitude expected no data loss, said the EU data center should be unaffected, and required no customer action. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-07-13 21:31 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/xvxd55g7kwjb](https://stspg.io/xvxd55g7kwjb)
- [Company: Amplitude](https://rewindex.com/company/amplitude.md)
- Versions: before (none: first archived) → after incident\_version:49/vtdtd2zqf5tq@b3fa18e5208d
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Amplitude UI and MCP is down
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-07-13 21:31 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-07-13 23:07 UTC
```

**6. Added: Affected components**

```diff
+ Analytics - Web Application, Analytics - Web Reporting, Audiences - Web Application, Data - Web Application, Experiment - Web Application, MCP, Web Application, Web Reporting
```

**7. Added: Update** (investigating) · 2026-07-13 21:31 UTC

```diff
+ Since 2026-07-13 14:04 PT, we have been experiencing issues with the Amplitude user interface (UI) MCP and rest APIs. Our team is actively investigating the source of the issue and will work to deploy a fix. We expect no data loss. No customer action is needed at this time. EU data center should be unaffected by this outage.  We will provide the next update in 30 mins.
```

**8. Added: Update** (investigating) · 2026-07-13 21:32 UTC

```diff
+ We are continuing to investigate this issue.
```

**9. Added: Update** (monitoring) · 2026-07-13 21:53 UTC

```diff
+ A fix has been implemented, and we're monitoring the results
```

**10. Added: Update** (resolved) · 2026-07-13 23:07 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-07-13 21:31 UTC | Critical incident: Amplitude UI and MCP is down (this change) | outage |

All Amplitude changes: [timeline](https://rewindex.com/company/amplitude/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/ied04792458dbb8 · Markdown: https://rewindex.com/change/ied04792458dbb8.md · JSON: https://rewindex.com/api/v1/changes/ied04792458dbb8 · Generated 2026-10-18T00:39:24.507Z