# AWS CloudWatch MCP Server (awslabs.cloudwatch-mcp-server) - AgentBreakWatch Reference

> TL;DR Verdict: AWS CloudWatch MCP Server (`awslabs.cloudwatch-mcp-server`) is currently at v0.3.1 on PYPI (published 2026-09-22), with a 90-day Stability Score of 81/100 (B) and MEDIUM schema drift risk across 6 releases in the last 90 days. Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx awslabs.cloudwatch-mcp-server@latest deployments risk parameter drift across describe_log_groups and execute_log_insights_query.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/awslabs-cloudwatch-mcp
- Category Hub: https://agentbreakwatch.vercel.app/c/aws-labs (AWS Labs Official MCP Servers (awslabs.*) Stability Index)
- Package Name: `awslabs.cloudwatch-mcp-server`
- Registry: PYPI (https://pypi.org/project/awslabs.cloudwatch-mcp-server/)
- GitHub Repository: https://github.com/awslabs/mcp
- Vendor: AWS Labs
- Latest Live Version: v0.3.1
- Published Date: 2026-09-22T06:30:03.516925Z
- 90-Day Release Count: 6
- Direct Dependencies: 8
- License: Apache-2.0
- Stability Score: 81/100 (Grade B)
- Schema Drift Risk: MEDIUM
- Recommended Exact Pin Command: `uvx awslabs.cloudwatch-mcp-server@0.3.1`
- Watched Symbols / MCP Tools: describe_log_groups, execute_log_insights_query, get_active_alarms
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx awslabs.cloudwatch-mcp-server@latest deployments risk parameter drift across describe_log_groups and execute_log_insights_query.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
"awslabs-cloudwatch-mcp": {
  "command": "uvx",
  "args": ["awslabs.cloudwatch-mcp-server"]
}
```

## Migration Diff: After (Verified v0.3.1 Pattern)
```
"awslabs-cloudwatch-mcp": {
  "command": "uvx",
  "args": ["awslabs.cloudwatch-mcp-server@0.3.1"],
  "env": { "FASTMCP_LOG_LEVEL": "ERROR" }
}
```

## Recent Verified Releases
- v0.3.1 (published 2026-09-22) [LATEST]
- v0.2.1 (published 2026-09-08)
- v0.2.0 (published 2026-08-26)
- v0.1.8 (published 2026-08-10)
- v0.1.7 (published 2026-08-05)
- v0.1.6 (published 2026-07-28)