{"id":"qingshanyuluo-prometheus-mcp-server","name":"prometheus-mcp-server","af_score":50.5,"security_score":24.5,"reliability_score":22.5,"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).","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.","last_evaluated":"2026-04-04T19:45:38.076478+00:00","has_mcp":true,"has_api":false,"auth_methods":[],"has_free_tier":false,"known_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."],"error_quality":0.0}