mcp-server-aws-lambda

An MCP server implementation intended to integrate with AWS Lambda, allowing an MCP-capable agent to invoke or interact with AWS Lambda-related capabilities through MCP tools.

Evaluated Apr 04, 2026 (27d ago)
Homepage ↗ Repo ↗ Infrastructure mcp aws lambda serverless agents automation tooling infrastructure
⚙ Agent Friendliness
39
/ 100
Can an agent use this?
🔒 Security
56
/ 100
Is it safe for agents?
⚡ Reliability
28
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
45
Documentation
40
Error Messages
0
Auth Simplicity
45
Rate Limits
20

🔒 Security

TLS Enforcement
70
Auth Strength
70
Scope Granularity
40
Dep. Hygiene
45
Secret Handling
50

Security largely depends on how AWS credentials are provided to the MCP server (prefer environment variables/secret managers over hardcoding), and on IAM least-privilege. Agent-initiated Lambda invocations are high-risk unless tightly permissioned and validated. TLS for MCP transport is likely expected but not verifiable from the provided information.

⚡ Reliability

Uptime/SLA
20
Version Stability
30
Breaking Changes
30
Error Recovery
30
AF Security Reliability

Best When

You want a standardized MCP interface for calling AWS Lambda from an agent and you can tightly control AWS credentials and IAM permissions.

Avoid When

You cannot restrict IAM permissions or you lack controls to prevent an agent from invoking unintended Lambda functions.

Use Cases

  • Letting an AI agent trigger or manage AWS Lambda executions
  • Building agent workflows that perform serverless operations in AWS
  • Testing/automation of Lambda-based backends via MCP tool calls

Not For

  • Direct general-purpose AWS console replacement
  • Highly sensitive production execution without additional IAM scoping and safeguards
  • Workloads requiring complex AWS service discovery beyond Lambda (unless explicitly covered by the MCP tool set)

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

Methods: AWS IAM credentials (e.g., access key/secret or assumed role)
OAuth: No Scopes: No

Auth is typically via AWS credentials and IAM permissions; no OAuth or fine-grained MCP-level scopes are indicated from the provided package name alone.

Pricing

Free tier: No
Requires CC: No

Costs likely depend on AWS Lambda usage and any AWS API calls; no pricing details available from the provided information.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • Agents may invoke Lambda with unintended payloads; enforce input validation and least-privilege IAM.
  • Lambda executions are inherently side-effectful; treat tool calls as non-idempotent unless the specific function is designed that way.
  • If the MCP server lacks clear tool contracts (inputs/outputs), agents may generate incorrect event payload shapes.
  • AWS throttling/retries may be needed; without documented retry/idempotency semantics, agent behavior can be brittle.

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Scores are editorial opinions as of 2026-04-04.

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