Self-hosted Prometheus MCP alternatives
The Prometheus MCP server installs locally over stdio, so the process and its connection to your Prometheus instance stay on infrastructure you control. The servers below run the same way.
Each is a local process. Queries still reach whatever backend you point at, but the server itself and its credentials never leave your machine or network. A few of the picks sit in security and CI rather than pure observability, and they are flagged as such.
The 8 best self-hosted alternatives
Grafana Labs' official server runs locally and queries dashboards, Prometheus, Loki, incidents, alerts, and OnCall. The closest companion, since it talks to your Prometheus from a process you operate.
Set up Grafana →Sentry's official server installs locally and pulls issues, stack traces, and events and runs Seer root-cause analysis, with the server process under your control.
Set up Sentry →Run locally, the official SigNoz server gives full access to traces, logs, metrics, dashboards, and alerts in an OpenTelemetry-native stack you can host yourself.
Set up SigNoz →PagerDuty's official server runs locally and exposes incidents, services, schedules, teams, and orchestrations across 64 tools, read-only by default, from your own process.
Set up PagerDuty →AWS Labs' server runs locally and executes any AWS CLI command with validation, read-only mode, and suggestions. It reaches CloudWatch and infrastructure rather than acting as a metrics query engine.
Set up AWS (AWS Labs) →Not observability: Snyk's official server, built into the Snyk CLI, scans dependencies, code, containers, and IaC for vulnerabilities locally. Useful for the security side of running a service, kept on your machine.
Set up Snyk →Also adjacent. Sonar's official server brings SonarQube code quality, security, and coverage analysis into an agent, run locally, checking the code behind a service rather than its metrics.
Set up SonarQube →Argo CD's server runs locally and lets an agent inspect and manage GitOps applications: list and sync apps, read resource trees and workload logs, and run resource actions. Deployment, not monitoring.
Set up Argo CD →
How to choose
All of these run as a local stdio process, the same property Prometheus has. Grafana is the closest observability companion, with SigNoz, Sentry, and PagerDuty covering traces, errors, and incidents. AWS reaches infrastructure. Snyk, SonarQube, and Argo CD sit in security, code quality, and deployment, useful around a running service but not replacements for metric queries.
FAQ
- Can the Prometheus MCP server be self-hosted?
- Yes. The maintained Prometheus server runs locally over stdio and connects to your Prometheus instance, keeping the process and credentials on your own infrastructure.
- Are all of these observability servers?
- No. Grafana, SigNoz, Sentry, and PagerDuty cover observability and incidents. AWS reaches infrastructure, while Snyk, SonarQube, and Argo CD handle security scanning, code quality, and GitOps deployment, adjacent to running a service rather than monitoring it.