# AWS Labs Core MCP Server (awslabs.core-mcp-server) - AgentBreakWatch Reference

> TL;DR Verdict: AWS Labs Core MCP Server (`awslabs.core-mcp-server`) is currently at v1.0.27 on PYPI (published 2026-03-27), with a 90-day Stability Score of 92/100 (A) and LOW schema drift risk across 0 releases in the last 90 days. v1.0.x modularizes AWS MCP role profiles (AWS_API_MCP_PROFILE_NAME) and prompt_understanding routing.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/awslabs-core-mcp
- Category Hub: https://agentbreakwatch.vercel.app/c/aws-labs (AWS Labs Official MCP Servers (awslabs.*) Stability Index)
- Package Name: `awslabs.core-mcp-server`
- Registry: PYPI (https://pypi.org/project/awslabs.core-mcp-server/)
- GitHub Repository: https://github.com/awslabs/mcp
- Vendor: AWS Labs
- Latest Live Version: v1.0.27
- Published Date: 2026-03-27T17:57:21.985456Z
- 90-Day Release Count: 0
- Direct Dependencies: 52
- License: Apache-2.0
- Stability Score: 92/100 (Grade A)
- Schema Drift Risk: LOW
- Recommended Exact Pin Command: `uvx awslabs.core-mcp-server@1.0.27`
- Watched Symbols / MCP Tools: prompt_understanding
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
v1.0.x modularizes AWS MCP role profiles (AWS_API_MCP_PROFILE_NAME) and prompt_understanding routing.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
uvx awslabs.core-mcp-server
```

## Migration Diff: After (Verified v1.0.27 Pattern)
```
FASTMCP_LOG_LEVEL=ERROR uvx awslabs.core-mcp-server@latest
```

## Recent Verified Releases
- v1.0.27 (published 2026-03-27) [LATEST]
- v1.0.26 (published 2026-03-24)
- v1.0.25 (published 2026-03-05)
- v1.0.24 (published 2026-03-04)
- v1.0.23 (published 2026-02-13)
- v1.0.22 (published 2026-02-05)