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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
npx -y mcp-alertmanager@latestMCP Client Configuration
Add to your MCP client configuration (VS Code, Cursor, Windsurf, etc.):
{
"mcpServers": {
"alertmanager": {
"command": "npx",
"args": ["-y", "mcp-alertmanager@latest"],
"env": {
"ALERTMANAGER_URL": "http://localhost:9093"
}
}
}
}VS Code
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
{
"mcpServers": {
"alertmanager": {
"command": "npx",
"args": ["-y", "mcp-alertmanager@latest"]
}
}
}Binary
Download from GitHub Releases or build from source:
make build
./mcp-alertmanagerConfiguration
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
--urlorALERTMANAGER_URLis 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
"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
make build # Build for current platform
make build-all-platforms # Cross-compile for all platformsContainer
podman build -f Containerfile -t mcp-alertmanager .Kubernetes / OpenShift Deployment
Container Image
The container image is available on GitHub Container Registry:
ghcr.io/jeanlopezxyz/mcp-alertmanager:latestHelm Chart
Deploy using the included Helm chart:
# 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
helm upgrade --install mcp-alertmanager ./charts/mcp-alertmanager \
--namespace mcp-servers \
--set openshift=true \
--set alertmanager.url=http://alertmanager.monitoring:9093