{"id":"janwilmake-openapi-mcp-server","name":"openapi-mcp-server","homepage":"https://openapisearch.com","repo_url":"https://github.com/janwilmake/openapi-mcp-server","category":"api-gateway","subcategories":[],"tags":["mcp","openapi","api-exploration","spec-search","ai-tools","typescript","developer-tools"],"what_it_does":"Provides an MCP (Model Context Protocol) server that helps AI clients search and explore OpenAPI specifications (from oapis.org), including generating simple-language summaries and locating relevant operations/endpoints. Supports OpenAPI files in both JSON and YAML and is intended for Claude Desktop/Cursor via an MCP URL.","use_cases":["Let an AI quickly understand an unfamiliar OpenAPI spec and how its endpoints work","Find specific operations/endpoints within a large OpenAPI document","Summarize OpenAPI specs in simple language for planning or assistant workflows","Help generate correct request shapes by guiding exploration of operations and parameters"],"not_for":["Security review of APIs (it does not describe security scanning/verification features)","Executing business-critical changes without human verification","Working with private/internal OpenAPI specs unless the MCP service supports your required hosting/auth model"],"best_when":"You want an MCP-integrated assistant to navigate and reason about public or accessible OpenAPI specs through natural-language exploration.","avoid_when":"You need guaranteed strong guarantees around access control, data residency, or you must operate entirely offline/private without sending spec data to a third-party service.","alternatives":["Use local OpenAPI tooling (e.g., openapi-parser/openapi-dereference + custom RAG search)","Use hosted API spec search platforms (if available) with their own SDKs/APIs","Build an MCP server yourself around OpenAPI indexing and retrieval from your preferred datastore"],"af_score":46.8,"security_score":37.2,"reliability_score":23.8,"package_type":"mcp_server","discovery_source":["github"],"priority":"high","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-03-30T13:25:27.439333+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":"https://openapi-mcp.openapisearch.com/mcp","has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"README does not describe authentication/authorization requirements for the hosted MCP URL. If the service is public, there may be no auth; if auth exists, it is not documented here."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"No pricing details are provided in the supplied README."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":46.8,"security_score":37.2,"reliability_score":23.8,"mcp_server_quality":85.0,"documentation_accuracy":65.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":40.0,"rate_limit_clarity":10.0,"tls_enforcement":60.0,"auth_strength":20.0,"scope_granularity":10.0,"dependency_hygiene":55.0,"secret_handling":50.0,"security_notes":"The README describes a hosted MCP URL but does not document authentication/authorization, data handling, or rate limiting. TLS is assumed for HTTPS URLs, but explicit guarantees are not stated. Dependencies listed are small in the provided manifest; specific vulnerability status is not verifiable from the supplied data.","uptime_documented":0.0,"version_stability":40.0,"breaking_changes_history":30.0,"error_recovery":25.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Hosted MCP service behavior (limits, auth, timeouts) is not documented in the provided README; agent workflows may need conservative retry/backoff and payload size checks.","Because the server performs multi-step exploration (identifier→summary→endpoints), agents may benefit from caching discovered identifiers/operation ids to reduce repeated calls.","Large/complex OpenAPI specs may increase latency or exceed tool output limits; agents should request narrower scopes where possible."]}}