MCP Alertmanager README | AllMCPs

Alertmanager MCP Server (Go)

A Model Context Protocol (MCP) server for Prometheus Alertmanager integration. Native Go binary with built-in Kubernetes connectivity via client-go.

Installation

npx

Terminal

npx -y mcp-alertmanager@latest

MCP Client Configuration

Add to your MCP client configuration (VS Code, Cursor, Windsurf, etc.):

config.json

{
  "mcpServers": {
    "alertmanager": {
      "command": "npx",
      "args": ["-y", "mcp-alertmanager@latest"],
      "env": {
        "ALERTMANAGER_URL": "http://localhost:9093"
      }
    }
  }
}

VS Code

shell

code --add-mcp '{"name":"alertmanager","command":"npx","args":["-y","mcp-alertmanager@latest"],"env":{"ALERTMANAGER_URL":"http://localhost:9093"}}'

Kubernetes Auto-Connect

Automatically connects to Alertmanager running in OpenShift/Kubernetes via the K8S API service proxy. Uses native kubeconfig/in-cluster config via client-go. No kubectl or port-forwarding required.

Default: openshift-monitoring/alertmanager-operated:9093

config.json

{
  "mcpServers": {
    "alertmanager": {
      "command": "npx",
      "args": ["-y", "mcp-alertmanager@latest"]
    }
  }
}

Binary

Download from GitHub Releases or build from source:

bash

make build
./mcp-alertmanager

Configuration

Environment Variables

Variable	Description
`ALERTMANAGER_URL`	Direct Alertmanager API URL (overrides K8S auto-connect)

CLI Flags

Flag	Description	Default
`--url`	Direct Alertmanager URL	-
`--namespace`	Kubernetes namespace	`openshift-monitoring`
`--service`	Kubernetes service name	`alertmanager-operated`
`--service-port`	Kubernetes service port	`9093`
`--service-scheme`	Service scheme (http/https)	`https`
`--kubeconfig`	Path to kubeconfig file	auto-detect

Precedence: --url / ALERTMANAGER_URL > K8S auto-connect

Connection strategy:

Direct URL (if --url or ALERTMANAGER_URL is set)
K8S API proxy (auto-detect kubeconfig or in-cluster config)

Tools (12)

Alerts

Tool	Description
`getAlerts`	Get alerts with optional filters
`getAlertGroups`	Get alerts grouped by routing labels
`getCriticalAlerts`	Get critical severity alerts only
`getAlertingSummary`	Summary: counts by severity, top alerts, namespaces

Silences

Tool	Description
`getSilences`	List silences by state
`createSilence`	Create a silence for an alert
`deleteSilence`	Delete a silence by ID

Status

Tool	Description
`getAlertmanagerStatus`	Server status, version, cluster info
`getReceivers`	List notification receivers

Troubleshooting

Tool	Description
`investigateAlert`	Deep investigation of a specific alert
`getAlertHistory`	Alert history and analysis guidance
`correlateAlerts`	Find correlated alerts by shared labels

Example Prompts

Code

"What alerts are currently firing?"
"Are there any critical alerts?"
"Give me a summary of the alerting status"
"Investigate the HighMemoryUsage alert"
"Create a 2-hour silence for PodCrashLooping"
"What receivers are configured?"
"Find correlated alerts to identify the root cause"
"Show me alert history for KubeNodeNotReady"

Development

Build

bash

make build              # Build for current platform
make build-all-platforms # Cross-compile for all platforms

Container

bash

podman build -f Containerfile -t mcp-alertmanager .

Kubernetes / OpenShift Deployment

Container Image

The container image is available on GitHub Container Registry:

Code

ghcr.io/jeanlopezxyz/mcp-alertmanager:latest

Helm Chart

Deploy using the included Helm chart:

bash

# Add the chart repository (or use local chart)
helm upgrade --install mcp-alertmanager ./charts/mcp-alertmanager \
  --namespace mcp-servers \
  --create-namespace \
  --set openshift=true

Helm Values

Parameter	Description	Default
`image.registry`	Container registry	`ghcr.io`
`image.repository`	Image repository	`jeanlopezxyz/mcp-alertmanager`
`image.version`	Image tag	`latest`
`openshift`	Enable OpenShift Routes	`false`
`service.port`	Service port	`8080`
`alertmanager.namespace`	Alertmanager namespace	`openshift-monitoring`
`alertmanager.service`	Alertmanager service name	`alertmanager-operated`
`rbac.useClusterReader`	Use cluster-reader role	`true`

Example with custom Alertmanager

bash

helm upgrade --install mcp-alertmanager ./charts/mcp-alertmanager \
  --namespace mcp-servers \
  --set openshift=true \
  --set alertmanager.url=http://alertmanager.monitoring:9093

License

MIT