{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"awesome-easymcp","slug":"easymcp","name":"EasyMCP","type":"mcp","url":"https://github.com/zcaceres/easy-mcp/","page_url":"https://unfragile.ai/easymcp","categories":["mcp-servers"],"tags":[],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"awesome-easymcp__cap_0","uri":"capability://tool.use.integration.express.like.api.for.mcp.tool.registration.and.execution","name":"express-like api for mcp tool registration and execution","description":"Provides a fluent, Express.js-inspired API for registering tools with schema validation and executing them through a ToolManager that abstracts MCP protocol complexity. Uses method chaining (e.g., `server.tool('name', schema, handler)`) to define tools with automatic JSON schema validation, parameter binding, and error handling without requiring developers to manually construct MCP protocol messages or manage server lifecycle.","intents":["I want to define a callable function that an MCP client can invoke without writing boilerplate MCP protocol code","I need to validate tool parameters against a schema before execution","I want to quickly prototype an MCP server with familiar Express-like syntax"],"best_for":["TypeScript developers familiar with Express.js patterns","teams building MCP servers with minimal protocol knowledge","rapid prototyping of AI agent tool integrations"],"limitations":["Express-like API is synchronous-first; async handlers require Promise returns","No built-in middleware chain like Express — each tool is independently validated","Schema validation uses JSON Schema only, no custom validators"],"requires":["TypeScript 5.0+","@modelcontextprotocol/sdk ^1.0.4","Node.js 16+"],"input_types":["JSON schema objects","function handlers (sync or async)","parameter objects matching schema"],"output_types":["tool execution results (any serializable type)","error objects with MCP-compliant error codes"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_1","uri":"capability://tool.use.integration.decorator.based.mcp.capability.definition.with.metadata.reflection","name":"decorator-based mcp capability definition with metadata reflection","description":"Experimental API using TypeScript decorators (@Tool, @Resource, @Prompt, @Root) with reflect-metadata to automatically extract and register MCP capabilities from class methods without explicit registration calls. Decorators capture method signatures, parameter types, and JSDoc comments at compile time, then RootsManager and other capability managers use this metadata to construct MCP protocol definitions at runtime without manual schema construction.","intents":["I want to define MCP capabilities using decorators for cleaner, more declarative code","I need automatic schema generation from TypeScript method signatures and JSDoc","I prefer class-based organization of related tools and resources"],"best_for":["TypeScript developers comfortable with decorator syntax","teams building large MCP servers with many related capabilities","projects already using decorator-based frameworks (NestJS, TypeORM)"],"limitations":["Experimental API — may have undiscovered issues and breaking changes","Requires TypeScript experimentalDecorators flag enabled in tsconfig.json","JSDoc parsing is basic — complex type descriptions may not translate to schemas","No support for overloaded methods or union types in decorator definitions"],"requires":["TypeScript 5.0+ with experimentalDecorators enabled","reflect-metadata ^0.2.2 imported before decorator usage","Node.js 16+"],"input_types":["TypeScript class methods with @Tool/@Resource/@Prompt/@Root decorators","JSDoc comments on methods and parameters","TypeScript type annotations"],"output_types":["MCP-compliant tool/resource/prompt definitions","automatically generated JSON schemas"],"categories":["tool-use-integration","code-generation-editing"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_10","uri":"capability://tool.use.integration.server.initialization.and.capability.negotiation.with.mcp.clients","name":"server initialization and capability negotiation with mcp clients","description":"EasyMCP handles server initialization including capability advertisement and client negotiation. When a client connects, the server responds with its supported capabilities (tools, resources, prompts, roots) and protocol version, allowing clients to discover available features. The framework manages this negotiation automatically, collecting registered capabilities from all managers and presenting them in MCP protocol format without requiring manual capability enumeration.","intents":["I want MCP clients to discover what tools, resources, and prompts my server provides","I need to advertise server capabilities during client connection","I want to handle protocol version negotiation automatically"],"best_for":["MCP servers serving multiple clients with different capability needs","applications requiring dynamic capability discovery","teams building client-agnostic MCP servers"],"limitations":["Capabilities are static — cannot change after server initialization","No capability versioning — all clients see the same capability set","No capability filtering per client — all capabilities are advertised to all clients","Protocol version is fixed at server startup — no runtime negotiation"],"requires":["TypeScript 5.0+","@modelcontextprotocol/sdk ^1.0.4","Node.js 16+"],"input_types":["registered tools, resources, prompts, roots"],"output_types":["MCP capability advertisement messages","protocol version information"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_2","uri":"capability://tool.use.integration.uri.template.based.resource.routing.with.path.to.regexp.matching","name":"uri template-based resource routing with path-to-regexp matching","description":"Implements dynamic resource resolution using URI templates (e.g., `/files/{path}`, `/users/{id}`) parsed by path-to-regexp library, allowing ResourceManager to match incoming resource requests against registered patterns and extract path parameters. Resources can be static (pre-defined URIs) or dynamic (template-based), with parameter extraction automatically bound to handler functions, enabling file system access and parameterized content serving without manual string parsing.","intents":["I want to expose file system resources via URI patterns like /files/{path}","I need to handle parameterized resource requests where the URI contains variable segments","I want to serve different content based on URI parameters without writing custom routing logic"],"best_for":["MCP servers exposing file system or hierarchical data structures","applications needing RESTful-style resource access patterns","teams familiar with Express.js route patterns"],"limitations":["URI template syntax limited to path-to-regexp capabilities — no query string support","No built-in resource caching — each request triggers handler execution","Resource update notifications not supported (noted in development status)","No automatic MIME type detection — handlers must specify content types"],"requires":["path-to-regexp library (included as dependency)","TypeScript 5.0+","Node.js 16+"],"input_types":["URI template strings with {param} placeholders","resource handler functions","request context objects"],"output_types":["resource content (text, binary, structured data)","MIME type declarations","error responses for unmatched URIs"],"categories":["tool-use-integration","search-retrieval"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_3","uri":"capability://text.generation.language.prompt.template.management.with.dynamic.execution","name":"prompt template management with dynamic execution","description":"PromptManager handles registration and execution of prompt templates that can accept arguments and return generated text. Prompts are defined with names, descriptions, and handler functions that receive arguments and context, enabling MCP clients to request prompt execution with parameters. The system supports both static prompts (no arguments) and dynamic prompts (parameterized), with context object providing logging and progress tracking during execution.","intents":["I want to expose reusable prompt templates that MCP clients can invoke with different arguments","I need to generate contextual text based on client-provided parameters","I want to track execution progress and log events during prompt generation"],"best_for":["MCP servers providing prompt libraries for AI agents","applications generating templated responses with dynamic parameters","teams building prompt engineering tools"],"limitations":["No built-in template syntax (Handlebars, Jinja) — handlers must implement string interpolation","Arguments are passed as key-value objects only — no complex nested structures","No prompt versioning or rollback — each registration overwrites previous definition","Execution results must be serializable to text — no binary or structured output"],"requires":["TypeScript 5.0+","@modelcontextprotocol/sdk ^1.0.4","Node.js 16+"],"input_types":["prompt name and description strings","argument definitions (key-value schema)","handler functions receiving arguments and context"],"output_types":["generated text strings","execution metadata (logs, progress)"],"categories":["text-generation-language","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_4","uri":"capability://automation.workflow.root.directory.declaration.and.file.system.access.control","name":"root directory declaration and file system access control","description":"RootsManager enables MCP servers to declare accessible file system roots (directories) that clients can browse and access. Roots are registered with paths and optional descriptions, providing a security boundary for file system access. The system allows clients to discover available roots and access files within those boundaries without exposing the entire file system, implementing a sandboxed file access model through MCP protocol root declarations.","intents":["I want to expose specific directories to MCP clients while preventing access to other parts of the file system","I need to declare which file system roots are available for browsing and file operations","I want to provide clients with a list of accessible directories at server startup"],"best_for":["MCP servers providing file system access to AI agents","applications needing sandboxed file browsing capabilities","teams building code analysis or documentation tools"],"limitations":["Roots are static — cannot be added/removed after server initialization","No fine-grained access control (permissions, read-only flags) — all declared roots are fully accessible","No symlink resolution or path traversal protection — relies on OS-level permissions","Root paths must be absolute — relative paths not supported"],"requires":["TypeScript 5.0+","@modelcontextprotocol/sdk ^1.0.4","Node.js 16+","valid file system paths on the host system"],"input_types":["absolute file system paths","root descriptions (optional)"],"output_types":["MCP root declarations","root metadata (path, description)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_5","uri":"capability://automation.workflow.context.aware.logging.and.progress.tracking.during.capability.execution","name":"context-aware logging and progress tracking during capability execution","description":"Context object provides runtime logging and progress tracking for tool, resource, and prompt handlers. Handlers receive a Context instance with methods for emitting log messages (info, warn, error levels) and progress updates, enabling structured event emission during execution. Logs and progress are captured and can be returned to MCP clients, providing visibility into long-running operations and debugging information without requiring external logging infrastructure.","intents":["I want to emit structured logs from tool handlers that MCP clients can see","I need to track progress during long-running operations and report it back to clients","I want to debug handler execution without writing to console or external loggers"],"best_for":["MCP servers with long-running tools or resource operations","applications needing real-time progress feedback to clients","teams building debugging and monitoring capabilities"],"limitations":["Logs are in-memory only — no persistence to disk or external systems","Progress tracking is linear (percentage-based) — no hierarchical task tracking","Log levels are basic (info, warn, error) — no debug or trace levels","No log filtering or sampling — all logs are captured and returned"],"requires":["TypeScript 5.0+","Node.js 16+","handler functions that accept Context parameter"],"input_types":["log messages (strings)","progress values (0-100 percentage)","log levels (info, warn, error)"],"output_types":["structured log entries with timestamps","progress updates","execution metadata"],"categories":["automation-workflow","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_6","uri":"capability://tool.use.integration.unified.mcp.server.lifecycle.management.with.protocol.abstraction","name":"unified mcp server lifecycle management with protocol abstraction","description":"BaseMCP and EasyMCP classes manage the complete MCP server lifecycle including initialization, capability registration, request handling, and shutdown. The framework abstracts away MCP protocol details (message serialization, transport handling, error codes) by providing high-level methods for registering tools/resources/prompts and delegating protocol compliance to the underlying @modelcontextprotocol/sdk. Developers call simple methods like `server.tool()` or `server.resource()` while the framework handles protocol versioning, capability negotiation, and error serialization.","intents":["I want to create an MCP server without understanding the full protocol specification","I need to handle MCP protocol compliance (error codes, message formats) automatically","I want to focus on business logic rather than protocol implementation details"],"best_for":["developers new to MCP protocol","teams building MCP servers quickly without protocol expertise","applications needing MCP compliance without custom protocol handling"],"limitations":["No support for MCP sampling (server-initiated requests to client) — one-way client→server only","No Server-Sent Events (SSE) transport support — requires stdio or other transports","Abstractions add ~50-100ms overhead per request due to manager delegation","Limited error customization — error codes are predefined by MCP spec"],"requires":["TypeScript 5.0+","@modelcontextprotocol/sdk ^1.0.4","Node.js 16+"],"input_types":["tool/resource/prompt/root definitions","handler functions","server configuration options"],"output_types":["MCP-compliant server instance","protocol messages and responses"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_7","uri":"capability://tool.use.integration.type.safe.tool.schema.validation.with.json.schema.integration","name":"type-safe tool schema validation with json schema integration","description":"ToolManager integrates JSON Schema validation for tool parameters, accepting schema objects that define expected input types, required fields, and constraints. When a tool is invoked, the framework validates incoming parameters against the registered schema before passing them to the handler, ensuring type safety and rejecting invalid requests with MCP-compliant error responses. Schemas are passed as plain JSON Schema objects (no custom DSL), enabling reuse of existing schema definitions and validation libraries.","intents":["I want to validate tool parameters against a schema before execution","I need to reject invalid tool calls with clear error messages","I want to document tool parameters using standard JSON Schema format"],"best_for":["MCP servers requiring strict parameter validation","teams using JSON Schema for API documentation","applications needing type safety without TypeScript generics"],"limitations":["Schema validation uses JSON Schema only — no custom validators or conditional schemas","Validation errors are generic — no field-level error messages","No schema composition or $ref support — schemas must be self-contained","Complex types (unions, discriminated unions) require verbose schema definitions"],"requires":["TypeScript 5.0+","valid JSON Schema objects (draft 7 or later)","Node.js 16+"],"input_types":["JSON Schema objects","tool parameter objects"],"output_types":["validation results (pass/fail)","error objects with validation details"],"categories":["tool-use-integration","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_8","uri":"capability://automation.workflow.capability.manager.abstraction.layer.for.modular.feature.organization","name":"capability manager abstraction layer for modular feature organization","description":"The framework uses specialized manager classes (ToolManager, ResourceManager, PromptManager, RootsManager) that encapsulate registration, validation, and execution logic for each capability type. Each manager implements a consistent interface for registering capabilities and handling requests, allowing EasyMCP to delegate to the appropriate manager without knowing capability-specific details. This modular architecture enables independent evolution of each capability type and simplifies testing and maintenance.","intents":["I want to organize tool, resource, prompt, and root definitions in separate, testable modules","I need to extend the framework with custom capability types without modifying core code","I want to reuse validation and execution logic across multiple capability instances"],"best_for":["large MCP servers with many capabilities","teams building custom extensions to easy-mcp","projects requiring modular, testable architecture"],"limitations":["Manager interfaces are internal — no public API for custom managers","Managers are instantiated once at server startup — no dynamic manager creation","No inter-manager communication — each manager operates independently","Manager state is not persisted — resets on server restart"],"requires":["TypeScript 5.0+","understanding of manager class hierarchy","Node.js 16+"],"input_types":["capability definitions (tools, resources, prompts, roots)","handler functions"],"output_types":["registered capabilities","execution results"],"categories":["automation-workflow","code-generation-editing"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-easymcp__cap_9","uri":"capability://safety.moderation.error.handling.with.mcp.protocol.compliant.error.codes.and.messages","name":"error handling with mcp protocol-compliant error codes and messages","description":"The framework provides error handling that maps exceptions and validation failures to MCP protocol-compliant error responses with appropriate error codes (InvalidRequest, MethodNotFound, InternalError, etc.). When handlers throw exceptions or validation fails, the framework catches errors and serializes them to MCP error format before returning to clients, ensuring protocol compliance without requiring handlers to know error code semantics.","intents":["I want errors from my handlers to be automatically converted to MCP protocol format","I need to return meaningful error messages to MCP clients without manual serialization","I want validation failures to produce standard error responses"],"best_for":["MCP servers requiring protocol compliance","applications needing consistent error handling across all capabilities","teams building robust error reporting"],"limitations":["Error codes are predefined by MCP spec — no custom error types","Error messages are limited to strings — no structured error details","No error recovery or retry logic — errors are terminal","Stack traces are not included in error responses for security"],"requires":["TypeScript 5.0+","@modelcontextprotocol/sdk ^1.0.4","Node.js 16+"],"input_types":["exceptions thrown by handlers","validation failures","protocol violations"],"output_types":["MCP error objects with code and message","error responses sent to clients"],"categories":["safety-moderation","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":27,"verified":false,"data_access_risk":"high","permissions":["TypeScript 5.0+","@modelcontextprotocol/sdk ^1.0.4","Node.js 16+","TypeScript 5.0+ with experimentalDecorators enabled","reflect-metadata ^0.2.2 imported before decorator usage","path-to-regexp library (included as dependency)","valid file system paths on the host system","handler functions that accept Context parameter","valid JSON Schema objects (draft 7 or later)","understanding of manager class hierarchy"],"failure_modes":["Express-like API is synchronous-first; async handlers require Promise returns","No built-in middleware chain like Express — each tool is independently validated","Schema validation uses JSON Schema only, no custom validators","Experimental API — may have undiscovered issues and breaking changes","Requires TypeScript experimentalDecorators flag enabled in tsconfig.json","JSDoc parsing is basic — complex type descriptions may not translate to schemas","No support for overloaded methods or union types in decorator definitions","Capabilities are static — cannot change after server initialization","No capability versioning — all clients see the same capability set","No capability filtering per client — all capabilities are advertised to all clients","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.32,"ecosystem":0.39999999999999997,"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":"2026-06-17T09:51:03.038Z","last_scraped_at":"2026-05-03T14:00:18.053Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=easymcp","compare_url":"https://unfragile.ai/compare?artifact=easymcp"}},"signature":"VoLGSEp6WdDj5JtEOBHRuzd0eithiKnuxXZWagebdApL8pOjLLbKCj6soU9MbwzS4ApYz89jDzzaBhIgqFJRCg==","signedAt":"2026-06-22T02:38:23.729Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/easymcp","artifact":"https://unfragile.ai/easymcp","verify":"https://unfragile.ai/api/v1/verify?slug=easymcp","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"}}