{"id":"keratin-authn-server","name":"authn-server","homepage":"https://hub.docker.com/r/keratin/authn-server","repo_url":"https://hub.docker.com/r/keratin/authn-server","category":"auth","subcategories":[],"tags":["authentication","authn","identity","security","backend"],"what_it_does":"authn-server appears to be an authentication/identity provider backend (“authn” = authentication). However, no repository contents (README, API specs, endpoints, config, or manifests) were provided in the prompt, so concrete details about its capabilities and interface cannot be verified.","use_cases":["Building an authentication layer for applications/microservices","Centralizing user/login verification and token issuance","Integrating authentication into internal services"],"not_for":["Public, user-facing auth without proper operational hardening and review","Use as a complete identity solution without complementary authorization/identity management (if those are not included)"],"best_when":null,"avoid_when":null,"alternatives":["Auth0","Clerk","Keycloak","Okta (Auth)","Firebase Authentication","Custom auth using OAuth2/OIDC providers"],"af_score":0.0,"security_score":0.0,"reliability_score":0.0,"package_type":"mcp_server","discovery_source":["docker_mcp"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T21:31:15.287506+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":false,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"No authentication methods, token types, or scope model were provided, so auth characteristics cannot be validated."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"No pricing information provided."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":0.0,"security_score":0.0,"reliability_score":0.0,"mcp_server_quality":0.0,"documentation_accuracy":0.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":0.0,"rate_limit_clarity":0.0,"tls_enforcement":0.0,"auth_strength":0.0,"scope_granularity":0.0,"dependency_hygiene":0.0,"secret_handling":0.0,"security_notes":"No concrete implementation/config details were provided (e.g., TLS enforcement, password/token handling, dependencies, logging practices), so security posture cannot be assessed from observable facts.","uptime_documented":0.0,"version_stability":0.0,"breaking_changes_history":0.0,"error_recovery":0.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":[]}}