{"id":"qingshanyuluo-prometheus-mcp-server","name":"prometheus-mcp-server","homepage":null,"repo_url":"https://github.com/qingshanyuluo/prometheus-mcp-server","category":"monitoring","subcategories":[],"tags":["prometheus","mcp","sse","metrics","observability","golang","promql"],"what_it_does":"A lightweight Prometheus “MCP server” exposed over SSE that lets an agent discover metric names/labels/label values and execute PromQL instant and range queries (optionally returning a base64-encoded chart image).","use_cases":["Agent-assisted Prometheus metric exploration (find metrics, inspect label sets)","Automated PromQL querying for diagnostics and reporting","Generating simple time-series charts from PromQL range queries for AI summarization","Integrating Prometheus into MCP-capable agent workflows via an SSE endpoint"],"not_for":["High-assurance/production security deployments without transport and access controls","Use cases requiring strict SLAs or strong reliability guarantees","Complex enterprise query governance (e.g., fine-grained per-tenant authorization for PromQL)"],"best_when":"You control the environment (or network) where the SSE server runs and you want quick agent-friendly access to Prometheus for discovery and basic querying.","avoid_when":"If you need robust authentication, multi-tenant isolation, or documented operational guarantees (rate limits, error codes, retries) to safely expose this service to untrusted callers.","alternatives":["Prometheus HTTP API directly (e.g., /api/v1/query, /api/v1/series, /api/v1/labels)","Grafana (with API) for dashboards/queries and charting","Other community MCP servers for Prometheus/metrics (if available) with stronger documentation and auth"],"af_score":50.5,"security_score":24.5,"reliability_score":22.5,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T19:45:38.076478+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":"http://localhost:8081/sse","has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"The README does not describe any authentication/authorization for the SSE MCP server."},"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":50.5,"security_score":24.5,"reliability_score":22.5,"mcp_server_quality":62.0,"documentation_accuracy":55.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":100.0,"rate_limit_clarity":0.0,"tls_enforcement":10.0,"auth_strength":10.0,"scope_granularity":10.0,"dependency_hygiene":40.0,"secret_handling":60.0,"security_notes":"The README describes only an environment variable for PROMETHEUS_URL and an optional log file path; it does not mention authentication/authorization, TLS requirements for the SSE endpoint, or how errors/logs handle sensitive information. Running without network-level protections would be risky.","uptime_documented":0.0,"version_stability":30.0,"breaking_changes_history":40.0,"error_recovery":20.0,"idempotency_support":"true","idempotency_notes":"Most tools are read-only queries/discovery; repeated calls should be idempotent. No explicit idempotency semantics documented for MCP tool calls.","pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Unspecified behavior when Prometheus is unreachable or when queries fail; agent may need to handle generic failures.","Tool outputs are described as JSON/base64, but exact schemas and error response formats are not provided in the README.","SSE connection lifetime/limits are not documented; long-running agent sessions may require reconnect logic."]}}