AWS Labs Official MCP Servers (awslabs.*) Stability Index
Live PyPI release history, FastMCP tool signatures, and IAM profile configuration changes for all official AWS Labs Model Context Protocol servers (EKS, Terraform, CDK, Lambda, DynamoDB, RDS, CloudWatch, Cost Analysis, Bedrock KB).
AWS Labs maintains a fast-moving suite of Python MCP servers distributed via uvx on PyPI. Pin exact package versions in .mcp.json and set FASTMCP_LOG_LEVEL=ERROR to prevent stdio JSON-RPC framing corruption. Across 15 tracked packages in AWS Labs MCPs, the average 90-day stability score is 86/100 with 0 high-drift packages. Most recent release: awslabs.aws-documentation-mcp-server v1.2.3 (2026-10-13).
Complete AWS Labs MCPs Comparison & Version Pin Matrix
Click any package to view `tools/list` schema diffs, watched symbols, and before/after migration code.
| Package | Registry | Live Version | Published | 90d Releases | Drift Risk | Stability | Recommended Exact Pin |
|---|---|---|---|---|---|---|---|
| awslabs.core-mcp-server AWS Labs Core MCP Server | pypi | v1.0.27 | 2026-03-27 | 0 | low | A (92) | uvx awslabs.core-mcp-server@1.0.27 |
| awslabs.aws-documentation-mcp-server AWS Documentation MCP Server | pypi | v1.2.3 | 2026-10-13 | 7 | medium | B+ (86) | uvx awslabs.aws-documentation-mcp-server@1.2.3 |
| awslabs.cdk-mcp-server AWS CDK MCP Server | pypi | v1.0.15 | 2026-03-05 | 0 | medium | B+ (86) | uvx awslabs.cdk-mcp-server@1.0.15 |
| awslabs.terraform-mcp-server AWS Terraform MCP Server | pypi | v1.0.18 | 2026-03-09 | 0 | medium | B+ (86) | uvx awslabs.terraform-mcp-server@1.0.18 |
| awslabs.eks-mcp-server AWS EKS Kubernetes MCP Server | pypi | v0.2.1 | 2026-09-08 | 5 | medium | B (81) | uvx awslabs.eks-mcp-server@0.2.1 |
| awslabs.lambda-tool-mcp-server AWS Lambda Tool MCP Server | pypi | v2.1.1 | 2026-09-08 | 5 | medium | B+ (86) | uvx awslabs.lambda-tool-mcp-server@2.1.1 |
| awslabs.cost-analysis-mcp-server AWS Cost Analysis MCP Server | pypi | v1.0.5 | 2025-07-09 | 0 | medium | B+ (86) | uvx awslabs.cost-analysis-mcp-server@1.0.5 |
| awslabs.cloudwatch-mcp-server AWS CloudWatch MCP Server | pypi | v0.3.1 | 2026-09-22 | 6 | medium | B (81) | uvx awslabs.cloudwatch-mcp-server@0.3.1 |
| awslabs.dynamodb-mcp-server AWS DynamoDB MCP Server | pypi | v2.1.8 | 2026-09-08 | 4 | medium | B+ (86) | uvx awslabs.dynamodb-mcp-server@2.1.8 |
| awslabs.postgres-mcp-server AWS RDS Postgres MCP Server | pypi | v1.2.2 | 2026-09-22 | 6 | medium | B+ (86) | uvx awslabs.postgres-mcp-server@1.2.2 |
| awslabs.bedrock-kb-retrieval-mcp-server AWS Bedrock KB Retrieval MCP Server | pypi | v1.1.2 | 2026-09-22 | 6 | medium | B+ (86) | uvx awslabs.bedrock-kb-retrieval-mcp-server@1.1.2 |
| awslabs.nova-canvas-mcp-server Amazon Nova Canvas MCP Server | pypi | v1.0.15 | 2026-03-24 | 0 | medium | B+ (86) | uvx awslabs.nova-canvas-mcp-server@1.0.15 |
| awslabs.aws-diagram-mcp-server AWS Architecture Diagram MCP Server | pypi | v1.0.23 | 2026-03-09 | 0 | medium | B+ (86) | uvx awslabs.aws-diagram-mcp-server@1.0.23 |
| awslabs.git-repo-research-mcp-server AWS Git Repo Research MCP Server | pypi | v1.0.15 | 2026-03-24 | 0 | medium | B+ (86) | uvx awslabs.git-repo-research-mcp-server@1.0.15 |
| awslabs.openapi-mcp-server AWS Labs OpenAPI MCP Server | pypi | v1.1.6 | 2026-09-08 | 4 | medium | B+ (86) | uvx awslabs.openapi-mcp-server@1.1.6 |
Frequently Asked Questions: AWS Labs MCPs
Which AWS Labs MCPs packages have the highest schema drift risk?
All 15 tracked AWS Labs MCPs packages currently maintain low-to-medium drift risk with an average stability score of 86/100.
What is the fastest-moving package in AWS Labs MCPs?
awslabs.aws-documentation-mcp-server (AWS Documentation MCP Server) has shipped 7 releases in the last 90 days, with latest version v1.2.3 published on 2026-10-13.
How should engineering teams pin AWS Labs MCPs dependencies?
AWS Labs maintains a fast-moving suite of Python MCP servers distributed via uvx on PyPI. Pin exact package versions in .mcp.json and set FASTMCP_LOG_LEVEL=ERROR to prevent stdio JSON-RPC framing corruption.
Get Breaking-Change Alerts for AWS Labs MCPs
Monitor all 15 AWS Labs MCPs packages and receive instant migration snippets when tool schemas or exports shift.