{"id":"shaneholloman-mcp-server-go","name":"mcp-server-go","homepage":null,"repo_url":"https://github.com/shaneholloman/mcp-server-go","category":"ai-ml","subcategories":[],"tags":["mcp","model-context-protocol","go","sdk","stdio","tools","resources","prompts","llm-integration"],"what_it_does":"mcp-server-go is a Go library for implementing an MCP (Model Context Protocol) server. It provides abstractions to define MCP tools/resources/prompts and to serve the MCP server over stdio via an implementation of the MCP protocol.","use_cases":["Build local/embedded MCP servers that expose tools and resources to LLM clients","Provide typed tool inputs and structured tool outputs for LLM agents","Integrate application data/services (files, APIs, DB queries) into an MCP-compatible interface","Create reusable prompt templates for consistent LLM interactions"],"not_for":["Public internet deployments without additional hardening (stdio MCP is not an HTTP API)","Use as a secure authentication/authorization gateway by itself","Long-running production services where uptime/SLA, rate limiting, and operational guarantees are required (not evidenced in provided content)"],"best_when":"You want a lightweight Go-based MCP server running as a local process (stdio transport) with custom tools/resources and you can manage security and deployment around it.","avoid_when":"You need standardized REST/HTTP semantics, discoverable OpenAPI specs, built-in auth/rate limiting, or provider-grade operational controls; these are not described in the provided materials.","alternatives":["Other MCP server implementations (various languages)","Build an HTTP/GraphQL API plus an MCP adapter/proxy (if your stack supports it)","Use framework-specific MCP integrations from your LLM platform/vendor (if available)"],"af_score":60.0,"security_score":18.0,"reliability_score":30.0,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T21:22:07.850629+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":null,"has_sdk":true,"sdk_languages":["Go"],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"No authentication mechanism is described for the MCP server transport. Example usage starts a stdio server without auth/authorization controls."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Repository/license information is provided (MIT), but no pricing model is applicable/mentioned."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":60.0,"security_score":18.0,"reliability_score":30.0,"mcp_server_quality":78.0,"documentation_accuracy":70.0,"error_message_quality":null,"error_message_notes":"The README shows tool input validation and returning a tool result error (e.g., name must be a string, divide by zero). However, it does not document a full error taxonomy/codes or detailed protocol error handling guidance for agent developers.","auth_complexity":90.0,"rate_limit_clarity":0.0,"tls_enforcement":0.0,"auth_strength":10.0,"scope_granularity":0.0,"dependency_hygiene":50.0,"secret_handling":40.0,"security_notes":"The provided materials do not mention TLS (stdio transport), auth, scopes, or secret-handling guidance. Tool handlers can perform side effects (e.g., HTTP/file/DB in examples), so the main security risk is that authorization and input validation are the developer's responsibility; the README demonstrates some input validation but does not document comprehensive safety controls.","uptime_documented":0.0,"version_stability":45.0,"breaking_changes_history":35.0,"error_recovery":40.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Transport is stdio; agents that expect HTTP endpoints may need special wiring in the host environment.","Examples cast argument types directly from request parameters (e.g., float64, string); handlers should defensively validate types to avoid panics.","Advanced MCP capabilities are noted as potentially incomplete due to active development; behavior/feature coverage may change."]}}