{"id":"mrexodia-zeromcp","name":"zeromcp","homepage":"https://pypi.org/project/zeromcp/","repo_url":"https://github.com/mrexodia/zeromcp","category":"ai-ml","subcategories":[],"tags":["mcp","python","modelcontextprotocol","ai-interop","tooling","stdio","http-sse"],"what_it_does":"zeromcp is a minimal, zero-dependency (stdlib-only) Python implementation of the Model Context Protocol (MCP) that lets you expose typed Python functions as MCP tools/resources/prompts, and serve them over HTTP/SSE or over stdio.","use_cases":["Expose internal Python capabilities to MCP-compatible AI clients as typed tools","Build lightweight local MCP servers for development/testing (e.g., inspector)","Provide structured outputs from Python (TypedDict/Pydantic-like typing via Annotated) to MCP clients","Serve read-only data and prompt templates through MCP resources/prompts"],"not_for":["Production deployments needing enterprise-grade security controls or authentication","Use-cases requiring robust pagination, complex data streaming semantics beyond basic MCP","Workloads where CORS/security hardening must be centrally managed and tightly scoped"],"best_when":"You want a small, pure-Python MCP server for local or controlled environments, with tool schemas derived from native Python type hints.","avoid_when":"You need strong built-in access control, audited security features, or documented rate limiting/SLA-style operational guarantees.","alternatives":["mcp (official/third-party MCP server frameworks)","Other MCP server SDKs/implementations in Python","Larger frameworks that provide REST APIs with OpenAPI and mature auth/rate limiting"],"af_score":52.8,"security_score":38.8,"reliability_score":23.8,"package_type":"mcp_server","discovery_source":["github"],"priority":"high","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-03-30T13:51:37.905580+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":"http://127.0.0.1:8000/mcp (example from README; actual depends on your serve configuration)","has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"README does not describe authentication/authorization for the HTTP/SSE or stdio transports. A consumer should assume it may be unauthenticated unless the code provides additional controls not shown in the provided content."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Open-source library; pricing is not described in the provided content."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":52.8,"security_score":38.8,"reliability_score":23.8,"mcp_server_quality":75.0,"documentation_accuracy":70.0,"error_message_quality":null,"error_message_notes":"Only a minimal example is shown (raising McpToolError). No detailed mapping of error types to MCP error responses is provided in the provided material.","auth_complexity":20.0,"rate_limit_clarity":0.0,"tls_enforcement":50.0,"auth_strength":10.0,"scope_granularity":0.0,"dependency_hygiene":95.0,"secret_handling":60.0,"security_notes":"The library is described as zero-dependency (stdlib-only), which generally reduces dependency/CVE risk. However, the README does not document transport security requirements (e.g., TLS enforcement for the HTTP server), authentication/authorization, or scope granularity. CORS defaults to localhost origins on any port (and can be set to '*'), which could be dangerous if the server is reachable from untrusted networks. Secret-handling practices are not described in the provided content.","uptime_documented":0.0,"version_stability":35.0,"breaking_changes_history":35.0,"error_recovery":25.0,"idempotency_support":"false","idempotency_notes":"No idempotency guidance is documented; tool behavior is determined by user-implemented handlers.","pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["CORS defaults to allowing localhost origins on any port; this is browser-relevant and may be risky if exposed beyond local use.","HTTP endpoint preference is mentioned, but some MCP clients may not support /mcp consistently.","No auth/rate-limit behavior is described in the provided README, so agents should assume they may need to enforce network/access controls externally."]}}