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Evaluation record ยท mcp-server-aws

MCP AWS Server

v2026.5 (managed server GA)

AWS

MCPawscloudmcpmodel-context-protocol
76
Strong
About This MCP

AWS's official MCP offering for AWS cloud services. Two forms: the managed AWS MCP Server (GA 2026-05-06), a fully managed remote exposing 15,000+ AWS API operations plus documentation search and a sandboxed run_script tool, accessed through the open-source MCP Proxy for AWS which bridges IAM SigV4 credentials to MCP's OAuth model; and the awslabs/mcp suite of open-source, service-scoped servers (DynamoDB, CDK, pricing, etc.). Powerful but requires strict IAM controls.

Last Evaluated: July 9, 2026
Official Website

Trust Vector Analysis

Dimension Breakdown

๐Ÿš€Performance & Reliability
+
api reliability

API uptime and reliability analysis

Evidence
AWS Service Level Agreement โ€” AWS APIs have 99.99% uptime SLA for most services
highVerified: 2026-07-09
operation success rate

Operation success testing

Evidence
AWS SDK โ€” High success rates for API operations with proper retry logic
highVerified: 2026-07-09
multi service integration

Service integration testing

Evidence
AWS Service Integration โ€” Supports multiple AWS services but integration complexity varies
mediumVerified: 2026-07-09
response time

API latency testing

Evidence
AWS API Performance โ€” Response times vary by service and region (100ms-2s typical)
mediumVerified: 2026-07-09
error handling

Error handling testing

Evidence
AWS Error Handling โ€” Comprehensive error codes with automatic retry mechanisms
highVerified: 2026-07-09
๐Ÿ›ก๏ธSecurity
+
iam security

IAM security review; score raised from 78 as the GA managed server adds documented agent-specific IAM guidance, read-only policy patterns, and SCP-based governance

Evidence
AWS MCP Server GA Announcement โ€” Managed server authenticates with IAM credentials via SigV4; supports read-only restriction through IAM policies or Service Control Policies and separation between human and agent permissions
highVerified: 2026-07-09
credential exposure risk

Credential security analysis; modest raise from 60 since the managed server supports role-based short-lived credentials rather than requiring static keys

Evidence
AWS MCP Server GA Announcement โ€” The open-source MCP Proxy for AWS bridges IAM (SigV4) to MCP's OAuth model, so short-lived IAM role credentials can be used instead of static access keys; self-hosted awslabs servers still commonly rely on locally configured credentials
highVerified: 2026-07-09
resource modification risk

Resource control risk assessment

Evidence
Security Analysis โ€” AI can create, modify, delete AWS resources including EC2, S3, databases
highVerified: 2026-07-09
cost control risk

Cost control assessment

Evidence
AWS Billing โ€” AI can provision expensive resources without built-in cost controls
highVerified: 2026-07-09
audit logging

Audit capabilities review

Evidence
AWS CloudTrail โ€” Comprehensive audit logging via CloudTrail for all API actions
AWS MCP Server GA Announcement โ€” Managed server additionally publishes CloudWatch metrics under the AWS-MCP namespace and logs agent actions in CloudTrail for compliance
highVerified: 2026-07-09
data exfiltration risk

Data exposure analysis

Evidence
S3 Access โ€” AI can read S3 buckets and database contents, sending data to LLM
highVerified: 2026-07-09
๐Ÿ”’Privacy & Compliance
+
data exposure

Data exposure analysis

Evidence
Data Flow Analysis โ€” AWS resource data and content sent to LLM provider for processing
highVerified: 2026-07-09
pii protection

Privacy controls assessment

Evidence
MCP Security Guidelines โ€” No built-in PII detection when accessing S3, RDS, or other data stores
mediumVerified: 2026-07-09
vpc isolation

Network isolation assessment

Evidence
AWS VPC โ€” Can leverage VPC for network isolation but data still sent to LLM
mediumVerified: 2026-07-09
compliance readiness

Compliance framework review

Evidence
AWS Compliance โ€” AWS is compliant but sharing data with LLM provider affects compliance
mediumVerified: 2026-07-09
encryption support

Encryption capabilities review

Evidence
AWS Encryption โ€” Supports AWS KMS but data decrypted before sending to LLM
highVerified: 2026-07-09
๐Ÿ‘๏ธTrust & Transparency
+
documentation quality

Documentation completeness review

Evidence
AWS Documentation โ€” Comprehensive AWS SDK and service documentation
highVerified: 2026-07-09
action visibility

Action traceability assessment

Evidence
CloudTrail Logging โ€” All AWS API actions logged in CloudTrail
highVerified: 2026-07-09
mcp implementation

Implementation documentation review; raised from 72 as the implementation is now officially maintained by AWS with a dedicated docs site, replacing the previous community-maintained status

Evidence
awslabs/mcp Repository โ€” First-party AWS implementation: open-source awslabs/mcp suite plus the managed AWS MCP Server (GA 2026-05-06) with published documentation site at awslabs.github.io/mcp
highVerified: 2026-07-09
security guidance

Security documentation review; raised from 75 due to official MCP-specific IAM governance guidance shipped with GA

Evidence
AWS MCP Server GA Announcement โ€” AWS now publishes MCP-specific security guidance: IAM/SCP read-only patterns, separation of human vs agent permissions, and per-server security documentation in awslabs/mcp
highVerified: 2026-07-09
โš™๏ธOperational Excellence
+
ease of setup

Setup complexity assessment

Evidence
AWS MCP Server GA Announcement โ€” Managed server requires installing the local MCP Proxy for AWS plus IAM configuration; awslabs servers install via uvx/pip; still requires AWS account and credential management
mediumVerified: 2026-07-09
api coverage

API coverage assessment; raised from 85 as the GA managed server covers essentially the full AWS API surface

Evidence
AWS MCP Server GA Announcement โ€” Managed server's call_aws tool executes any of 15,000+ AWS API operations across all services, plus documentation search/read and sandboxed server-side Python via run_script
highVerified: 2026-07-09
reliability

Uptime analysis

Evidence
AWS Status โ€” High reliability with 99.99% uptime for most services
highVerified: 2026-07-09
cost predictability

Cost predictability analysis

Evidence
AWS Pricing โ€” Complex pricing model; AI can incur unexpected costs
mediumVerified: 2026-07-09
community support

Community activity analysis; raised from 75 reflecting first-party AWS maintenance

Evidence
awslabs/mcp Repository โ€” Actively maintained first-party open-source suite with a large contributor base; managed server backed by AWS support channels
highVerified: 2026-07-09
Strengths
  • +Official first-party AWS offering: managed AWS MCP Server (GA 2026-05) plus the open-source awslabs/mcp suite
  • +Managed server exposes 15,000+ AWS API operations through a small fixed tool set (call_aws, documentation search/read, sandboxed run_script)
  • +IAM SigV4 authentication with support for read-only restriction via IAM policies or Service Control Policies
  • +Excellent audit logging through CloudTrail plus CloudWatch metrics in the AWS-MCP namespace
  • +Documented separation of human vs agent permissions for governance
  • +No charge for the managed server itself; pay only for resources created
Limitations
  • !CRITICAL SECURITY RISK: with write-capable IAM permissions the AI can create, modify, delete infrastructure
  • !Cost control risk - AI can provision expensive resources
  • !Data in S3, RDS, and other services exposed to LLM provider
  • !No built-in PII detection or sensitive data filtering
  • !Managed server requires the local MCP Proxy for AWS since MCP clients speak OAuth 2.1, not SigV4
  • !Managed endpoint regions limited (US East N. Virginia, Europe Frankfurt), though API calls can target any region
  • !Potential for catastrophic infrastructure changes if IAM is misconfigured
Metadata
license: Apache 2.0 (awslabs/mcp suite and MCP Proxy for AWS); managed server is a hosted AWS service
supported platforms
0: All platforms with Python/uvx (awslabs servers); any MCP client via MCP Proxy for AWS (managed server)
programming languages
0: Python
1: TypeScript
mcp version: 1.0
remote endpoint: https://aws-mcp.us-east-1.api.aws/mcp (via local MCP Proxy for AWS)
github repo: https://github.com/awslabs/mcp
supported services
0: 15,000+ AWS API operations via managed server (call_aws)
1: Service-scoped awslabs servers (DynamoDB, CDK, pricing, Step Functions, S3 Tables, etc.)
authentication: AWS IAM credentials (SigV4) bridged to OAuth via MCP Proxy for AWS; IAM roles or access keys for self-hosted servers
ga date: 2026-05-06
first release: 2024-11
maintained by: AWS

Use Case Ratings

code generation

Useful for generating infrastructure as code and automation scripts

customer support

Can manage support infrastructure but limited direct customer impact

content creation

Can manage S3-based content storage but not primary use case

data analysis

Excellent for analyzing data in S3, RDS, and other AWS data services

research assistant

Good for managing research data in AWS but data exposure concerns

legal compliance

Very high risk - can expose confidential data and modify critical infrastructure

healthcare

Extreme risk for PHI exposure; HIPAA compliance nearly impossible with LLM sharing

financial analysis

High risk for sensitive financial data and infrastructure

education

Useful for managing educational infrastructure and resources

creative writing

Can manage content storage but significant risk/benefit mismatch