{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"npm-middy-mcp","slug":"middy-mcp","name":"middy-mcp","type":"mcp","url":"https://github.com/fredericbarthelet/middy-mcp#readme","page_url":"https://unfragile.ai/middy-mcp","categories":["mcp-servers"],"tags":["mcp","model context protocol","middy","middleware","aws","lambda"],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"npm-middy-mcp__cap_0","uri":"capability://tool.use.integration.aws.lambda.mcp.server.middleware.integration","name":"aws lambda mcp server middleware integration","description":"Integrates Model Context Protocol server functionality into AWS Lambda functions using Middy's middleware pattern, allowing Lambda handlers to expose MCP resources, tools, and prompts to Claude and other MCP clients. Works by wrapping Lambda event/response cycles with MCP protocol handlers that translate between Lambda invocation formats and MCP message schemas, enabling serverless MCP server deployment without custom orchestration logic.","intents":["Deploy an MCP server on AWS Lambda without managing custom protocol translation","Expose Lambda-based tools and resources to Claude via the Model Context Protocol","Reuse existing Lambda infrastructure to serve MCP clients","Build serverless MCP servers that scale automatically with Lambda"],"best_for":["AWS-native teams building MCP servers","Developers migrating existing Lambda functions to MCP","Teams wanting serverless MCP infrastructure without container management"],"limitations":["Lambda cold start latency (100-500ms) affects MCP request/response times","15-minute Lambda timeout limits long-running MCP operations","Requires Middy framework — not compatible with raw Lambda handlers","No built-in persistence layer — requires external state store (DynamoDB, S3) for MCP context","Single-threaded execution model may bottleneck concurrent MCP client connections"],"requires":["Node.js 18+ runtime","AWS Lambda environment","Middy 4.0+ framework","MCP SDK (version compatible with middy-mcp)","IAM permissions for Lambda execution role"],"input_types":["Lambda event (API Gateway, ALB, or direct invocation)","MCP protocol messages (JSON-RPC 2.0 format)"],"output_types":["Lambda response (API Gateway compatible)","MCP protocol responses (JSON-RPC 2.0 format)"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-middy-mcp__cap_1","uri":"capability://tool.use.integration.mcp.resource.exposure.via.lambda.handlers","name":"mcp resource exposure via lambda handlers","description":"Enables Lambda functions to declare and expose MCP resources (files, documents, data) that MCP clients can discover and retrieve through the Model Context Protocol. Implements the MCP resource schema mapping, allowing developers to define resource URIs, MIME types, and retrieval logic within Lambda handler middleware, with automatic protocol serialization and error handling.","intents":["Expose Lambda-accessible files or documents as MCP resources to Claude","Create dynamic resource endpoints that return different content based on URI parameters","Implement resource listing endpoints for MCP clients to discover available resources","Serve binary or text resources with proper MIME type negotiation"],"best_for":["Teams building knowledge bases or document servers on Lambda","Developers exposing S3 or DynamoDB content via MCP","Applications needing Claude to access Lambda-hosted resources"],"limitations":["Resource payload size limited by Lambda response size (6 MB for synchronous invocation)","No built-in caching — each resource request triggers a new Lambda invocation","Resource discovery requires explicit listing implementation — no automatic directory traversal","MIME type handling is manual — no automatic content-type detection"],"requires":["Middy middleware setup","MCP SDK resource schema definitions","Lambda execution role with permissions to access resource sources (S3, DynamoDB, etc.)"],"input_types":["MCP resource request (URI, MIME type filter)","Lambda event containing resource parameters"],"output_types":["MCP resource response (content, MIME type, URI)","Resource list (array of resource metadata)"],"categories":["tool-use-integration","memory-knowledge"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-middy-mcp__cap_2","uri":"capability://tool.use.integration.mcp.tool.function.calling.via.lambda","name":"mcp tool/function calling via lambda","description":"Exposes Lambda-executable functions as MCP tools that MCP clients (like Claude) can discover and invoke through the Model Context Protocol. Translates MCP tool call requests into Lambda function invocations with parameter validation, executes the function, and returns results in MCP tool response format with automatic error serialization and type coercion.","intents":["Allow Claude to invoke Lambda functions as tools without direct API access","Expose Lambda-based business logic as discoverable MCP tools","Implement parameter validation and type checking for tool calls","Handle tool execution errors and return structured error responses to MCP clients"],"best_for":["Teams building Claude-powered agents backed by Lambda functions","Developers exposing internal Lambda services to MCP clients","Applications needing Claude to trigger Lambda workflows"],"limitations":["Tool execution latency includes Lambda cold start (100-500ms typical)","No built-in retry logic — tool failures require client-side retry implementation","Parameter validation is schema-based only — no runtime type coercion","Tool output size limited by Lambda response payload (6 MB)","No streaming support — tool results must be fully computed before response"],"requires":["Middy middleware setup","MCP SDK tool schema definitions (name, description, input schema)","Lambda execution role with permissions to invoke target functions or services"],"input_types":["MCP tool call request (tool name, arguments as JSON)","Lambda event containing tool invocation metadata"],"output_types":["MCP tool result (content, is_error flag)","Structured error response with error message and code"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-middy-mcp__cap_3","uri":"capability://tool.use.integration.mcp.prompt.template.exposure.and.execution","name":"mcp prompt template exposure and execution","description":"Allows Lambda functions to define and expose MCP prompts (reusable prompt templates with arguments) that MCP clients can discover and execute. Implements prompt argument substitution, template rendering, and execution within Lambda middleware, translating MCP prompt requests into Lambda-based prompt execution with variable binding and output formatting.","intents":["Create reusable prompt templates that Claude can discover and use","Expose Lambda-based prompt logic as MCP prompts with parameterized arguments","Implement dynamic prompt generation based on runtime parameters","Serve prompt templates with metadata (description, arguments, output format)"],"best_for":["Teams building prompt libraries accessible to Claude","Developers centralizing prompt management in Lambda","Applications needing Claude to use standardized, versioned prompts"],"limitations":["Prompt execution latency includes Lambda invocation overhead","No built-in prompt versioning — version management requires external tracking","Argument validation is schema-based only — no runtime type coercion","Prompt output size limited by Lambda response payload (6 MB)","No streaming support for long-form prompt outputs"],"requires":["Middy middleware setup","MCP SDK prompt schema definitions (name, description, arguments)","Lambda execution role with permissions to access prompt sources (S3, DynamoDB, etc.)"],"input_types":["MCP prompt request (prompt name, arguments as JSON)","Lambda event containing prompt execution metadata"],"output_types":["MCP prompt response (rendered prompt text, content type)","Structured error response if prompt execution fails"],"categories":["tool-use-integration","text-generation-language"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-middy-mcp__cap_4","uri":"capability://automation.workflow.middleware.composition.for.mcp.protocol.handling","name":"middleware composition for mcp protocol handling","description":"Provides Middy middleware hooks (before, after, onError) for intercepting and transforming MCP protocol messages at various stages of Lambda execution. Enables developers to compose cross-cutting concerns like authentication, logging, rate limiting, and error handling as reusable middleware that applies to all MCP operations (resources, tools, prompts) without duplicating logic.","intents":["Add authentication/authorization checks to all MCP operations","Log and monitor all MCP requests and responses","Implement rate limiting or quota enforcement for MCP clients","Transform or enrich MCP messages with contextual data","Handle errors consistently across all MCP operation types"],"best_for":["Teams building production MCP servers with cross-cutting concerns","Developers wanting to reuse middleware across multiple MCP operations","Applications needing centralized logging, auth, or monitoring for MCP"],"limitations":["Middleware execution adds latency to every MCP request (typically 10-50ms per middleware)","Middleware order matters — incorrect ordering can cause subtle bugs","No built-in middleware for common patterns (auth, rate limiting) — requires custom implementation","Middleware context is Lambda-scoped — not shared across concurrent invocations","Error handling in middleware can mask underlying MCP protocol errors"],"requires":["Middy 4.0+ framework","Understanding of Middy middleware lifecycle (before, after, onError hooks)","MCP SDK for protocol message types"],"input_types":["Lambda event","Middy context object","MCP protocol message (in before hook)"],"output_types":["Modified Lambda event or context","Modified MCP protocol message","Error response (in onError hook)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-middy-mcp__cap_5","uri":"capability://safety.moderation.mcp.protocol.message.validation.and.error.handling","name":"mcp protocol message validation and error handling","description":"Automatically validates incoming MCP protocol messages against JSON-RPC 2.0 schema and MCP operation-specific schemas (resource requests, tool calls, prompts), with structured error responses that conform to MCP error format. Implements error serialization, validation error reporting, and graceful degradation for malformed requests without crashing the Lambda handler.","intents":["Validate MCP requests conform to protocol specification before processing","Return standardized error responses for invalid requests","Provide detailed validation error messages to help clients debug","Prevent invalid requests from reaching handler logic"],"best_for":["Teams building robust MCP servers that handle untrusted client input","Developers wanting automatic request validation without custom code","Applications needing detailed error diagnostics for debugging"],"limitations":["Validation adds latency (typically 5-20ms per request)","Schema validation is strict — may reject valid but unusual requests","No custom validation rules — only schema-based validation supported","Error messages may leak implementation details if not carefully configured"],"requires":["Middy middleware setup","MCP SDK with schema definitions","JSON schema validator (typically ajv or similar)"],"input_types":["MCP protocol message (JSON-RPC 2.0 format)","Operation-specific schema (resource, tool, prompt)"],"output_types":["Validation error response (MCP error format)","Validated message object (if validation passes)"],"categories":["safety-moderation","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-middy-mcp__cap_6","uri":"capability://automation.workflow.lambda.context.enrichment.for.mcp.operations","name":"lambda context enrichment for mcp operations","description":"Automatically extracts and enriches Lambda execution context (request ID, function name, memory, timeout, environment variables) and makes it available to MCP operation handlers through Middy context object. Enables handlers to access Lambda metadata for logging, debugging, and conditional logic without manual context extraction.","intents":["Access Lambda execution metadata (request ID, function name) in MCP handlers","Correlate MCP requests with Lambda CloudWatch logs using request ID","Implement conditional logic based on Lambda environment or configuration","Debug MCP operations using Lambda execution context"],"best_for":["Teams building observable MCP servers with centralized logging","Developers needing to correlate MCP requests with Lambda metrics","Applications requiring environment-specific behavior in MCP handlers"],"limitations":["Context enrichment adds minimal latency but increases memory usage","Lambda context is immutable — cannot be modified by handlers","Context is invocation-scoped — not shared across concurrent invocations"],"requires":["Middy middleware setup","AWS Lambda environment"],"input_types":["Lambda context object"],"output_types":["Enriched Middy context with Lambda metadata"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"npm-middy-mcp__cap_7","uri":"capability://automation.workflow.event.source.agnostic.mcp.server.deployment","name":"event source agnostic mcp server deployment","description":"Abstracts Lambda event source details (API Gateway, ALB, direct invocation, EventBridge) and normalizes them into MCP protocol messages, allowing the same MCP server code to handle requests from multiple event sources. Implements event source detection and translation logic in middleware, enabling deployment flexibility without code changes.","intents":["Deploy MCP server behind API Gateway, ALB, or other Lambda event sources","Switch event sources without changing MCP server code","Support multiple event sources simultaneously for the same MCP server","Normalize event source differences (headers, body format, response format)"],"best_for":["Teams deploying MCP servers with flexible infrastructure","Developers migrating MCP servers between event sources","Applications needing to support multiple deployment patterns"],"limitations":["Event source translation adds latency (typically 5-10ms)","Some event sources have limitations (e.g., API Gateway 6 MB response limit)","Event source-specific features (e.g., API Gateway authorizers) require custom handling","Response format varies by event source — may require custom response mapping"],"requires":["Middy middleware setup","Knowledge of target event sources (API Gateway, ALB, etc.)","Event source-specific IAM permissions"],"input_types":["Lambda event from any supported source (API Gateway, ALB, direct invocation, etc.)"],"output_types":["Event source-specific response format (API Gateway, ALB, etc.)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":36,"verified":false,"data_access_risk":"moderate","permissions":["Node.js 18+ runtime","AWS Lambda environment","Middy 4.0+ framework","MCP SDK (version compatible with middy-mcp)","IAM permissions for Lambda execution role","Middy middleware setup","MCP SDK resource schema definitions","Lambda execution role with permissions to access resource sources (S3, DynamoDB, etc.)","MCP SDK tool schema definitions (name, description, input schema)","Lambda execution role with permissions to invoke target functions or services"],"failure_modes":["Lambda cold start latency (100-500ms) affects MCP request/response times","15-minute Lambda timeout limits long-running MCP operations","Requires Middy framework — not compatible with raw Lambda handlers","No built-in persistence layer — requires external state store (DynamoDB, S3) for MCP context","Single-threaded execution model may bottleneck concurrent MCP client connections","Resource payload size limited by Lambda response size (6 MB for synchronous invocation)","No built-in caching — each resource request triggers a new Lambda invocation","Resource discovery requires explicit listing implementation — no automatic directory traversal","MIME type handling is manual — no automatic content-type detection","Tool execution latency includes Lambda cold start (100-500ms typical)","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.3583381298040236,"quality":0.26,"ecosystem":0.5800000000000001,"match_graph":0.25,"freshness":0.52,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.15,"match_graph":0.23,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:23.902Z","last_scraped_at":"2026-05-03T14:04:47.472Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":3095,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=middy-mcp","compare_url":"https://unfragile.ai/compare?artifact=middy-mcp"}},"signature":"qsOyyyJDh5CTR60Hmfs6+3hCdIreGYN0YmsUCLZbNhUSru5b4/NFx4NMU9WHmMEuMPfRwC4ZVhqGeO98bZGfAA==","signedAt":"2026-06-22T06:54:30.088Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/middy-mcp","artifact":"https://unfragile.ai/middy-mcp","verify":"https://unfragile.ai/api/v1/verify?slug=middy-mcp","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}