{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"awesome-c-mcp-sdk","slug":"c-mcp-sdk","name":"C# MCP SDK","type":"mcp","url":"https://github.com/modelcontextprotocol/csharp-sdk","page_url":"https://unfragile.ai/c-mcp-sdk","categories":["mcp-servers"],"tags":[],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"awesome-c-mcp-sdk__cap_0","uri":"capability://tool.use.integration.json.rpc.2.0.protocol.message.serialization.and.deserialization","name":"json-rpc 2.0 protocol message serialization and deserialization","description":"Implements bidirectional JSON-RPC 2.0 message serialization using System.Text.Json with custom converters for MCP protocol types. The SDK handles request/response/notification message framing, error serialization with standardized error codes, and automatic message ID generation for request tracking. Built on top of ModelContextProtocol.Core package with pluggable JSON serialization configuration to support custom type converters and null-handling strategies.","intents":["I need to send and receive MCP protocol messages over various transports without manually constructing JSON","I want to ensure all JSON-RPC messages conform to the MCP specification with proper error handling","I need custom serialization behavior for domain-specific types in my MCP implementation"],"best_for":[".NET developers building MCP servers and clients","teams integrating LLMs into existing .NET applications","developers needing standards-compliant JSON-RPC without boilerplate"],"limitations":["System.Text.Json only — no Newtonsoft.Json support","Custom converters require understanding of JsonConverter<T> pattern","Message size limits depend on underlying transport layer"],"requires":[".NET 6.0 or higher","ModelContextProtocol.Core NuGet package","System.Text.Json (included in .NET runtime)"],"input_types":["JSON strings","MCP protocol objects (Request, Response, Notification)","Custom domain types via converter registration"],"output_types":["JSON strings","Strongly-typed MCP protocol objects","Error responses with standardized error codes"],"categories":["tool-use-integration","protocol-implementation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_1","uri":"capability://tool.use.integration.mcp.server.creation.and.capability.registration","name":"mcp server creation and capability registration","description":"Provides a fluent builder API for configuring MCP servers with tool, prompt, and resource capabilities. The ServerOptions builder pattern allows declarative registration of handlers via dependency injection, with automatic parameter resolution from method signatures. Supports both standalone servers and ASP.NET Core integration, with built-in support for request/response filtering, cancellation tokens, and structured error handling. The server manages the full lifecycle including initialization, capability advertisement, and graceful shutdown.","intents":["I want to expose tools, prompts, and resources to LLMs without writing boilerplate transport code","I need to register multiple capabilities with different authentication and authorization requirements","I want my server to integrate seamlessly with ASP.NET Core dependency injection and middleware"],"best_for":["backend developers building LLM-powered APIs","teams migrating existing .NET services to MCP","developers building multi-capability servers with complex authorization"],"limitations":["ASP.NET Core integration requires ASP.NET Core 6.0+","Dependency injection resolution adds ~5-10ms per request for complex dependency graphs","No built-in persistence for server state — requires external storage for stateful operations"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package","Optional: ASP.NET Core 6.0+ for web server integration"],"input_types":["Tool definitions (name, description, input schema)","Prompt templates (name, description, arguments)","Resource URIs and content definitions","C# methods/delegates for capability handlers"],"output_types":["Configured McpServer instance","Capability advertisements (tools, prompts, resources)","Tool execution results","Error responses with structured error codes"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_10","uri":"capability://automation.workflow.long.running.task.management.with.progress.reporting","name":"long-running task management with progress reporting","description":"Provides infrastructure for managing tool invocations that take significant time to complete, with built-in progress reporting to clients. Tools can report progress updates during execution, and clients receive notifications of progress changes. The SDK handles progress state management, client notification delivery, and task cancellation. Supports both determinate progress (percentage complete) and indeterminate progress (activity indication).","intents":["I want to invoke tools that take minutes or hours and report progress to the client","I need to allow clients to cancel long-running operations","I want to provide real-time progress updates without blocking the client"],"best_for":["developers building MCP servers for data processing or analysis tasks","teams needing to expose long-running operations to LLMs","applications requiring progress visibility for user feedback"],"limitations":["Progress updates are best-effort — no guaranteed delivery","Client must maintain active connection to receive progress notifications","No built-in task persistence — progress lost on server restart"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package"],"input_types":["Tool invocation requests","Progress update data (percentage, status message)","Cancellation requests"],"output_types":["Progress notifications","Final tool results","Cancellation confirmations"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_11","uri":"capability://tool.use.integration.resource.subscription.and.change.notification.system","name":"resource subscription and change notification system","description":"Enables servers to push resource change notifications to subscribed clients without requiring polling. Clients subscribe to resources with optional filters, and servers send notifications when resource content changes. The SDK manages subscription state, client notification delivery, and cleanup on unsubscription. Supports both full content updates and delta updates for efficient bandwidth usage. Includes automatic resubscription on connection recovery.","intents":["I want to notify clients when resource content changes in real-time","I need to support multiple concurrent subscriptions to the same resource","I want to send only changed data to reduce bandwidth usage"],"best_for":["developers building real-time data integrations with LLMs","teams exposing live data sources (logs, metrics, events) to AI agents","applications needing efficient resource synchronization"],"limitations":["Notifications are push-based — no guaranteed delivery","Client must maintain active connection for notifications","No built-in filtering on server side — filtering must be application-specific"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package"],"input_types":["Subscription requests with resource URIs","Optional subscription filters","Resource change events"],"output_types":["Subscription confirmations","Change notifications with updated content","Unsubscription confirmations"],"categories":["tool-use-integration","memory-knowledge"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_12","uri":"capability://tool.use.integration.asp.net.core.server.integration.with.middleware.support","name":"asp.net core server integration with middleware support","description":"Provides seamless integration of MCP servers into ASP.NET Core applications via dedicated middleware and service registration extensions. The integration allows MCP servers to run alongside standard ASP.NET Core endpoints, sharing dependency injection, configuration, and authentication/authorization infrastructure. Supports both HTTP transport and stdio transport for MCP communication. Includes automatic OpenAPI/Swagger documentation generation for MCP capabilities.","intents":["I want to add MCP server capabilities to my existing ASP.NET Core application","I need to share authentication and authorization between ASP.NET Core and MCP","I want to expose MCP capabilities through standard ASP.NET Core hosting"],"best_for":["ASP.NET Core developers adding LLM integration to existing applications","teams with existing ASP.NET Core infrastructure wanting to add MCP","developers needing unified authentication across REST and MCP endpoints"],"limitations":["Requires ASP.NET Core 6.0 or higher","MCP middleware adds overhead to all requests","OpenAPI generation may not capture all MCP-specific metadata"],"requires":["ASP.NET Core 6.0 or higher","ModelContextProtocol.AspNetCore NuGet package","Microsoft.Extensions.DependencyInjection"],"input_types":["ASP.NET Core service collection","MCP server configuration","Middleware pipeline"],"output_types":["Configured ASP.NET Core application with MCP support","OpenAPI documentation","MCP endpoints"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_13","uri":"capability://tool.use.integration.cancellation.and.error.handling.with.structured.error.codes","name":"cancellation and error handling with structured error codes","description":"Implements comprehensive cancellation support via CancellationToken throughout the SDK, allowing clients to cancel long-running operations. Provides structured error handling with standardized MCP error codes (parse error, invalid request, method not found, etc.) and detailed error messages. Errors include optional error data for additional context. Supports both synchronous and asynchronous error handling with proper exception propagation.","intents":["I want to cancel tool invocations that are taking too long","I need to return structured errors with standard error codes","I want to provide detailed error context to clients for debugging"],"best_for":["developers building robust MCP servers with proper error handling","teams needing standardized error responses across all capabilities","applications requiring cancellation support for long-running operations"],"limitations":["Cancellation is cooperative — handlers must check CancellationToken","Error codes are limited to MCP standard set — custom codes not supported","Error data serialization depends on JSON serialization configuration"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package"],"input_types":["CancellationToken from client requests","Exception objects from handler execution","Error data for additional context"],"output_types":["Cancellation confirmations","Structured error responses with error codes","Error data with additional context"],"categories":["tool-use-integration","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_14","uri":"capability://code.generation.editing.roslyn.analyzers.and.source.generators.for.compile.time.verification","name":"roslyn analyzers and source generators for compile-time verification","description":"Provides Roslyn-based analyzers that verify MCP server implementations at compile-time, catching common errors before runtime. Source generators emit boilerplate code for tool registration, parameter resolution, and schema generation, eliminating manual code writing. Analyzers check for schema mismatches between tool definitions and implementations, missing required parameters, and invalid capability configurations. Generators produce efficient, reflection-free code for handler invocation.","intents":["I want compile-time verification that my tool schemas match their implementations","I need to eliminate boilerplate code for tool registration and parameter resolution","I want to catch configuration errors before deploying my MCP server"],"best_for":["C# developers wanting compile-time safety for MCP implementations","teams with large numbers of tools needing automated verification","developers wanting to reduce boilerplate in MCP server code"],"limitations":["Analyzers only work in Visual Studio and IDEs with Roslyn support","Source generators require C# 10+ and .NET 6+","Complex generic types may not be fully analyzed"],"requires":["C# 10 or higher",".NET 6.0 or higher","Visual Studio 2022 or compatible IDE"],"input_types":["C# source code with MCP server definitions","Tool method signatures","Capability configurations"],"output_types":["Compiler diagnostics for configuration errors","Generated handler code","Generated schema definitions"],"categories":["code-generation-editing","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_15","uri":"capability://safety.moderation.client.side.oauth.flow.and.token.management","name":"client-side oauth flow and token management","description":"Implements OAuth 2.0 client-side flows for authenticating with OAuth-protected MCP servers. Handles authorization code flow with automatic redirect URI handling, token exchange, and token refresh. Manages token storage in client session with automatic token refresh before expiration. Supports both interactive (user-initiated) and non-interactive (client credentials) flows. Integrates with platform-specific authentication UI for user consent.","intents":["I want to authenticate my MCP client with OAuth-protected servers","I need to handle OAuth token refresh automatically","I want to support both interactive and non-interactive authentication flows"],"best_for":["developers building MCP clients that connect to OAuth-protected servers","teams needing to integrate with OAuth-protected data sources","applications requiring user authentication for MCP server access"],"limitations":["Token storage is session-based — tokens lost on client restart","Interactive flows require user interaction — not suitable for background services","Redirect URI handling platform-specific"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package","OAuth provider configuration"],"input_types":["OAuth provider configuration","Authorization code from redirect","Client credentials (for non-interactive flows)"],"output_types":["Access tokens","Refresh tokens","Token expiration information"],"categories":["safety-moderation","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_16","uri":"capability://data.processing.analysis.content.type.conversion.and.multi.format.resource.support","name":"content type conversion and multi-format resource support","description":"Provides automatic conversion between different content types for resources, allowing servers to expose the same resource in multiple formats (JSON, text, binary, etc.). The SDK includes built-in converters for common types and a pluggable converter interface for custom types. Clients can request specific content types, and the server automatically converts resource content. Supports content negotiation based on client preferences.","intents":["I want to expose resources in multiple formats without duplicating content","I need to convert between JSON, text, and binary representations automatically","I want clients to request specific content types for resources"],"best_for":["developers exposing resources in multiple formats","teams needing flexible resource representation","applications supporting diverse client requirements"],"limitations":["Conversion overhead depends on content size and converter complexity","Custom converters require understanding of converter interface","No built-in caching for converted content"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package"],"input_types":["Resource content in native format","Requested content type","Custom converter implementations"],"output_types":["Converted resource content","Content type metadata","Conversion errors"],"categories":["data-processing-analysis","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_2","uri":"capability://tool.use.integration.tool.definition.and.invocation.with.schema.validation","name":"tool definition and invocation with schema validation","description":"Enables developers to define tools as C# methods with automatic JSON Schema generation from parameter types and attributes. The SDK uses Roslyn source generators to create strongly-typed tool wrappers that validate input against the generated schema at invocation time. Tool handlers receive parsed, type-safe parameters and can return structured results or errors. Supports complex parameter types including nested objects, arrays, and enums with full schema documentation.","intents":["I want to expose C# methods as LLM-callable tools without manually writing JSON schemas","I need runtime validation of tool inputs against their declared schemas","I want type-safe tool implementations with compile-time schema verification"],"best_for":["C# developers building LLM agents with typed tool definitions","teams needing schema validation without external schema definition files","developers building tools with complex nested parameter types"],"limitations":["Schema generation only supports C# types — external schema definitions not supported","Recursive type definitions may generate overly complex schemas","Generic types with unbounded type parameters require manual schema customization"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package","C# 10+ for source generator support"],"input_types":["C# method signatures with parameters","Parameter attributes for schema documentation","Complex types (classes, records, enums, collections)"],"output_types":["JSON Schema definitions","Tool invocation results (any serializable type)","Validation errors with field-level error details"],"categories":["tool-use-integration","code-generation-editing"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_3","uri":"capability://tool.use.integration.prompt.template.definition.and.rendering","name":"prompt template definition and rendering","description":"Allows developers to define reusable prompt templates with named arguments that can be invoked by LLMs. Templates are registered on the server with descriptions and argument schemas, and the SDK handles argument validation and template rendering. Supports both simple string templates and complex multi-part prompts with structured content types. Prompts can be parameterized with user inputs, context data, or results from other tools.","intents":["I want to provide LLMs with predefined prompt templates that enforce consistent formatting","I need to parameterize prompts with dynamic arguments validated against a schema","I want to expose conversation starters or system prompts as discoverable capabilities"],"best_for":["developers building conversational AI systems with templated prompts","teams needing consistent prompt formatting across multiple LLM interactions","applications providing domain-specific prompt libraries to LLMs"],"limitations":["Template rendering is string-based — no built-in support for conditional logic or loops","Argument validation follows the same schema constraints as tools","No built-in template versioning or A/B testing support"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package"],"input_types":["Template strings with named placeholders","Argument definitions with JSON Schema","Prompt metadata (name, description, arguments)"],"output_types":["Rendered prompt strings","Structured prompt content with multiple parts","Validation errors for invalid arguments"],"categories":["tool-use-integration","text-generation-language"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_4","uri":"capability://tool.use.integration.resource.definition.and.subscription.management","name":"resource definition and subscription management","description":"Enables servers to expose resources (documents, files, data sources) with URI-based addressing and optional subscription support for real-time updates. Resources are registered with MIME types and content handlers, and clients can list, read, and subscribe to resource changes. The SDK manages subscription lifecycle including change notifications, unsubscription, and cleanup. Supports both static resources and dynamic content generation based on resource URIs.","intents":["I want to expose files, documents, or data sources to LLMs as discoverable resources","I need to provide real-time updates when resource content changes","I want to implement resource access control with per-resource authentication"],"best_for":["developers building knowledge-base integrations with LLMs","teams exposing document repositories or file systems to AI agents","applications needing real-time resource synchronization with LLM clients"],"limitations":["Subscription notifications are push-based — no built-in polling fallback","Resource content must fit in memory for transmission","No built-in caching or versioning for resource content"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package"],"input_types":["Resource URIs (string identifiers)","MIME type declarations","Resource content (any serializable type)","Subscription requests with optional filters"],"output_types":["Resource listings with metadata","Resource content with MIME type","Change notifications with updated content","Subscription confirmations and errors"],"categories":["tool-use-integration","memory-knowledge"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_5","uri":"capability://tool.use.integration.mcp.client.creation.and.server.discovery","name":"mcp client creation and server discovery","description":"Provides a client API for connecting to MCP servers and discovering their capabilities (tools, prompts, resources). The client handles connection establishment over configurable transports (stdio, HTTP), capability negotiation, and session management. Clients can list available tools, prompts, and resources, and invoke them with automatic request/response handling. Supports both synchronous and asynchronous operations with cancellation token support throughout.","intents":["I want to connect to an MCP server and discover what tools and resources it exposes","I need to invoke server tools from my application with automatic error handling","I want to manage the client lifecycle including connection, capability discovery, and cleanup"],"best_for":["LLM application developers integrating with MCP servers","teams building AI agents that need to discover and use dynamic tool sets","developers building MCP client libraries or integrations"],"limitations":["Capability discovery is one-time at connection — no dynamic capability updates","Client must maintain active connection for server-initiated notifications","No built-in connection pooling or load balancing across multiple servers"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package","Active MCP server accessible via configured transport"],"input_types":["Server connection parameters (URI, transport type)","Tool invocation requests with parameters","Resource read/subscribe requests"],"output_types":["Capability listings (tools, prompts, resources)","Tool invocation results","Resource content","Server notifications and errors"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_6","uri":"capability://tool.use.integration.transport.abstraction.with.stdio.and.http.support","name":"transport abstraction with stdio and http support","description":"Provides a pluggable transport layer supporting multiple communication mechanisms: stdio (for local process communication), HTTP client (for remote servers), and streamable HTTP protocol (for bidirectional communication over HTTP). Each transport implements ITransport with connection lifecycle management, message framing, and error handling. The abstraction allows seamless switching between transports without changing client/server code. Includes automatic reconnection logic and connection pooling for HTTP transports.","intents":["I want to run MCP servers as local processes and communicate via stdin/stdout","I need to connect to remote MCP servers over HTTP with proper connection management","I want to support multiple transport mechanisms without duplicating client/server logic"],"best_for":["developers building MCP integrations with flexible deployment options","teams needing both local and remote server support","applications requiring transport-agnostic client/server implementations"],"limitations":["Stdio transport limited to local process communication","HTTP transport requires server to support HTTP protocol","No built-in encryption — HTTPS required for sensitive data","Message size limits depend on transport (stdio has OS pipe limits)"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package","For HTTP: HttpClient configuration and network access"],"input_types":["Transport configuration (process path for stdio, URI for HTTP)","JSON-RPC messages","Connection parameters"],"output_types":["Established transport connections","Received JSON-RPC messages","Connection state notifications"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_7","uri":"capability://tool.use.integration.dependency.injection.and.parameter.resolution.for.handlers","name":"dependency injection and parameter resolution for handlers","description":"Integrates with Microsoft.Extensions.DependencyInjection to automatically resolve handler method parameters from the service container. The SDK uses reflection and source generators to inspect handler signatures and inject registered services, configuration objects, and protocol-specific parameters (like CancellationToken). Supports both constructor injection and method parameter injection, with automatic validation that all dependencies are registered. Enables handlers to depend on any service in the DI container without explicit parameter mapping.","intents":["I want my tool handlers to depend on services from the DI container without manual wiring","I need to pass cancellation tokens and protocol context to handlers automatically","I want compile-time verification that all handler dependencies are registered"],"best_for":["ASP.NET Core developers building MCP servers with existing DI patterns","teams with complex dependency graphs in their MCP implementations","developers wanting compile-time safety for handler dependencies"],"limitations":["Requires Microsoft.Extensions.DependencyInjection","Circular dependencies not detected until runtime","Complex generic types may require manual service registration"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package","Microsoft.Extensions.DependencyInjection"],"input_types":["Handler method signatures","Registered services in DI container","Protocol parameters (CancellationToken, etc.)"],"output_types":["Resolved handler instances with injected dependencies","Dependency resolution errors"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_8","uri":"capability://safety.moderation.oauth.authentication.and.authorization.for.servers","name":"oauth authentication and authorization for servers","description":"Provides built-in OAuth 2.0 support for protecting MCP server capabilities with authentication and authorization. Servers can declare OAuth requirements in capability metadata, and the SDK handles OAuth flow initiation, token exchange, and credential validation. Supports both authorization code flow and client credentials flow. Integrates with ASP.NET Core authentication middleware for seamless authorization policy enforcement on tools, prompts, and resources.","intents":["I want to protect my MCP server capabilities with OAuth authentication","I need to enforce authorization policies on individual tools and resources","I want to integrate with existing OAuth providers (Azure AD, Google, etc.)"],"best_for":["enterprise developers building secured MCP servers","teams integrating with OAuth-protected APIs","applications needing per-capability authorization"],"limitations":["Requires OAuth provider configuration","Token refresh logic must be implemented by application","No built-in token caching — tokens stored in client session only"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package","OAuth 2.0 provider (Azure AD, Google, etc.)","Optional: ASP.NET Core for middleware integration"],"input_types":["OAuth provider configuration","Authorization policies","Capability metadata with OAuth requirements"],"output_types":["OAuth flow initiation requests","Access tokens","Authorization decisions (allow/deny)"],"categories":["safety-moderation","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-c-mcp-sdk__cap_9","uri":"capability://tool.use.integration.request.and.response.filtering.with.middleware.pattern","name":"request and response filtering with middleware pattern","description":"Implements a middleware-style filtering system for intercepting and modifying requests and responses at the protocol level. Filters can inspect, validate, or transform messages before they reach handlers or are sent to clients. The SDK provides built-in filters for logging, metrics collection, and error handling, with a simple interface for custom filters. Filters execute in a chain with early termination support, allowing filters to reject requests or modify responses.","intents":["I want to log all tool invocations and their results for auditing","I need to validate requests against security policies before handler execution","I want to collect metrics on tool usage and performance"],"best_for":["developers building production MCP servers with observability requirements","teams needing request validation and security enforcement","applications requiring audit trails for tool invocations"],"limitations":["Filter execution adds latency to every request","Complex filter chains may be difficult to debug","No built-in filter composition utilities"],"requires":[".NET 6.0 or higher","ModelContextProtocol NuGet package"],"input_types":["Request messages (tool calls, resource reads, etc.)","Response messages","Filter configuration"],"output_types":["Modified or rejected requests","Modified responses","Filter execution results"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":28,"verified":false,"data_access_risk":"high","permissions":[".NET 6.0 or higher","ModelContextProtocol.Core NuGet package","System.Text.Json (included in .NET runtime)","ModelContextProtocol NuGet package","Optional: ASP.NET Core 6.0+ for web server integration","ASP.NET Core 6.0 or higher","ModelContextProtocol.AspNetCore NuGet package","Microsoft.Extensions.DependencyInjection","C# 10 or higher","Visual Studio 2022 or compatible IDE"],"failure_modes":["System.Text.Json only — no Newtonsoft.Json support","Custom converters require understanding of JsonConverter<T> pattern","Message size limits depend on underlying transport layer","ASP.NET Core integration requires ASP.NET Core 6.0+","Dependency injection resolution adds ~5-10ms per request for complex dependency graphs","No built-in persistence for server state — requires external storage for stateful operations","Progress updates are best-effort — no guaranteed delivery","Client must maintain active connection to receive progress notifications","No built-in task persistence — progress lost on server restart","Notifications are push-based — no guaranteed delivery","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.35,"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":"2026-06-17T09:51:02.371Z","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=c-mcp-sdk","compare_url":"https://unfragile.ai/compare?artifact=c-mcp-sdk"}},"signature":"fyXD2ABXBH63+0MgrxdxVM2czgbApbRxnGnIKdH35JqbqdM8kTI/rQoRV0pNTW/M4SVY3up2ogkNuG6oswPoAA==","signedAt":"2026-06-21T22:17:45.156Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/c-mcp-sdk","artifact":"https://unfragile.ai/c-mcp-sdk","verify":"https://unfragile.ai/api/v1/verify?slug=c-mcp-sdk","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"}}