{"id":"polyglot-k-prometheus-mcp-server","name":"prometheus-mcp-server","homepage":null,"repo_url":"https://github.com/polyglot-k/prometheus-mcp-server","category":"monitoring","subcategories":[],"tags":["mcp","prometheus","observability","monitoring","metrics","promql","go","api-tools","ai-integration"],"what_it_does":"An MCP (Model Context Protocol) server that lets AI clients query Prometheus: it summarizes service health, lists metrics/metadata, runs PromQL queries (instant and range), and provides some administration-style views (targets, alerts, settings) by connecting to a configured Prometheus URL.","use_cases":["LLM-assisted incident investigation using Prometheus metrics (health summaries, alert context)","Natural-language exploration of available Prometheus metrics and metadata","Generating PromQL from user questions and executing it (instant/range)","Monitoring/operations support via an MCP tool interface (alerts/targets/config views)"],"not_for":["Direct production-grade automation without considering Prometheus RBAC/network exposure","Environments where you cannot connect to (or expose) Prometheus from the MCP server","High-security contexts requiring strong per-user authorization at the MCP layer"],"best_when":"You want an MCP-compatible way for an LLM to inspect Prometheus signals and produce analysis summaries, with a straightforward deployment where the MCP server can reach Prometheus.","avoid_when":"You need robust authentication/authorization, multi-tenant controls, or strict governance around what metrics can be queried by which user.","alternatives":["Using the Prometheus HTTP API directly (scripted client + tool wrapper)","Grafana alerting/dashboards with an LLM layer (query/annotation via Grafana APIs)","OpenTelemetry/observability backends with dedicated LLM tooling","Other MCP servers that expose metrics/health via documented MCP tools"],"af_score":47.0,"security_score":28.5,"reliability_score":16.2,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T19:51:55.176318+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":["None stated for MCP server itself (configuration via env var PROMETHEUS_URL). Authentication, if any, is delegated to Prometheus access controls/networking. "],"oauth":false,"scopes":false,"notes":"The README shows access by supplying a Prometheus URL via env. No MCP-layer user auth, API keys, or scoped permissions are described. Prometheus auth (if enabled) would be handled by how PROMETHEUS_URL is secured/reachable."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":null},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":47.0,"security_score":28.5,"reliability_score":16.2,"mcp_server_quality":55.0,"documentation_accuracy":55.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":85.0,"rate_limit_clarity":10.0,"tls_enforcement":30.0,"auth_strength":30.0,"scope_granularity":10.0,"dependency_hygiene":20.0,"secret_handling":50.0,"security_notes":"The README describes connecting to Prometheus via an environment variable (PROMETHEUS_URL) but does not describe TLS enforcement, client authentication at the MCP layer, fine-grained authorization/scopes, or how secrets are handled if additional Prometheus credentials are required. Security likely depends entirely on Prometheus-side controls and secure network/TLS configuration.","uptime_documented":0.0,"version_stability":25.0,"breaking_changes_history":20.0,"error_recovery":20.0,"idempotency_support":"false","idempotency_notes":"Not enough information to confirm idempotency guarantees for query/admin operations exposed via MCP.","pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Prometheus connectivity is required and depends on PROMETHEUS_URL being reachable from where the MCP server runs (including Docker networking specifics like host.docker.internal).","No explicit rate-limit behavior or query throttling guidance is stated; aggressive LLM-driven query generation could overload Prometheus.","No explicit MCP auth/permissions model is described; agents may be able to request wide metric/metadata access depending on what Prometheus allows."]}}