AWS Lambda MCP Server
AWS Lambda is a serverless, event-driven compute service provided by Amazon Web Services (AWS) that allows developers to run code in response to triggers without provisioning or managing servers.
Quick Start Summary
The AWS Lambda MCP server is a Model Context Protocol bridge that connects AI assistants — including Claude Desktop, Cursor, Windsurf, and VS Code Copilot — to the AWS Lambda API through natural language. It exposes 10 API endpoints as callable tools, such as ListEventSources, AddEventSource, GetFunction, and more. No authentication is required — setup takes approximately 30 seconds. The server uses STDIO transport and can be installed by running npx -y @mcp/amazonaws-com-lambda. This integration is sourced from the auto AWS Lambda OpenAPI specification (v2014-11-11) and has a quality score of 46/99 (fair documentation coverage).
Server Details
- Category
- Cloud Infrastructure
- Authentication
- None
- Endpoints
- 10 operations
- Transport
- STDIO
- Spec Version
- v2014-11-11
- Install Command
npx -y @mcp/amazonaws-com-lambda
Environment Variables
AWS_LAMBDA_API_KEYExample: your_aws_lambda_api_key
Top Endpoints
/2014-11-13/event-source-mappings/ListEventSources
/2014-11-13/event-source-mappings/AddEventSource
/2014-11-13/functions/{FunctionName}GetFunction
/2014-11-13/functions/{FunctionName}DeleteFunction
/2014-11-13/event-source-mappings/{UUID}GetEventSource
One-Click Install
Copy the snippet for your MCP client and paste it in — zero editing required.
Claude Desktop
Add to claude_desktop_config.json
{
"mcpServers": {
"amazonaws-com-lambda": {
"command": "npx",
"args": [
"-y",
"@mcp/amazonaws-com-lambda"
],
"env": {
"AWS_LAMBDA_API_KEY": "your_aws_lambda_api_key"
}
}
}
}Cursor
Settings → MCP Servers → Add
{
"mcpServers": {
"amazonaws-com-lambda": {
"url": "https://mcpbridge.org/config/amazonaws-com-lambda.json"
}
}
}Saves as .cursor/mcp.json in the download. Move it to your project root.
VS Code
Use with MCP extension
{
"mcpServers": {
"amazonaws-com-lambda": {
"url": "https://mcpbridge.org/config/amazonaws-com-lambda.json"
}
}
}Endpoints Explorer
Search and browse the 10 operations supported by this server.
Multi-Language Code Examples
Executable code snippets for calling AWS Lambda endpoints in curl, TypeScript, or Python.
curl -X GET "https://api.apis.guru/v2/specs/amazonaws.com/lambda/2014-11-11/2014-11-13/event-source-mappings/" \ -H "Content-Type: application/json" \ # No auth required
Manual Configuration
Directly add this block to your JSON config file, or use the hosted config registry URL.
{
"mcpServers": {
"amazonaws-com-lambda": {
"command": "npx",
"args": ["-y","@mcp/amazonaws-com-lambda"],
"env": {
"AWS_LAMBDA_API_KEY": "your_aws_lambda_api_key"
}
}
}
}Authentication Details
No authentication required. This MCP server runs out-of-the-box.
Documentation Links
Error Handling & HTTP Status Code Matrix
Common status codes, error causes, and resolution steps when invoking AWS Lambda endpoints.
400 Bad RequestCause: Malformed payload parameters or missing required fields.
Resolution: Verify request schema in Endpoints tab before calling tool.
401 UnauthorizedCause: Missing or invalid API key credentials.
Resolution: Set environment variable in MCP client config under env object.
403 ForbiddenCause: Insufficient scope permissions for requested resource.
Resolution: Verify key permissions in developer dashboard.
404 Not FoundCause: Resource URL path or requested entity ID does not exist.
Resolution: Check path variables and parameters.
429 Rate Limit ExceededCause: API rate limit quota exceeded.
Resolution: Implement exponential backoff retry in tool call.
500 Internal ErrorCause: Upstream server runtime fault.
Resolution: Inspect STDIO stderr output for log trace.
Quality Score
Checked against our protocol-compliance rules.
Specification Version: v2014-11-11
Page compiled on: June 13, 2026
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📖 Detailed MCP Integration Guide
A technical breakdown of capabilities, agent workflows, and security/configuration best practices.
POST /2014-11-13/functions/ endpoint to fulfill this request. Subsequently, the developer can ask to "list all event source mappings for the 'processImageUploads' function to verify its triggers," invoking the GET /2014-11-13/functions/{FunctionName}/event-source-mappings endpoint. For updates, a command like "increase the memory allocation for 'processImageUploads' to 1024MB and update its code package from the local './dist' directory" would trigger a sequence using the PUT /2014-11-13/functions/{FunctionName}/configuration and related code update endpoints. The AI can also perform diagnostic tasks, such as "get the full configuration details for all functions deployed in this account to audit for potential cost optimization," using the GET /2014-11-13/functions/ endpoint.lambda:CreateFunction, lambda:GetFunction, lambda:UpdateFunctionCode), and no broader administrative access. Developers must ensure that the MCP server endpoint itself is secured, using HTTPS and potentially placed within a secure network or protected by API keys. Configuration should involve defining clear, scoped permissions for the AI agent and thoroughly testing its actions in a non-production environment before granting access to critical infrastructure, ensuring that automated actions are both safe and reversible.Similar APIs
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