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mcp-server-template

mcp-server-template

by cosmonic-labs
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

mcp-server-template

Template repository for creating a WebAssembly component Model Context Protocol (MCP) Server, with wasmCloud.

Dependencies

Quickstart

Start the Development loop

Build the component:

npm install
npm run dev

To debug your component, we recommend using the official MCP model inspector, to run that you can run:

npm run inspector

Using the model inspector you can connect to the local MCP server via HTTP, manipulate resources, run tools, and more.

Related MCP server: MY MCP

Generate a MCP Server from our template

1. Use our golden template to build a repository:

wash new <...>

Set up Cosmonic Control

Once your MCP server is ready for primetime, ensure your Comonic cluster is running.

First, sign up for a FREE Cosmonic license.

Once you have a license key, you can set up a Cosmonic cluster on any Kubernetes cluster that supports Helm:

helm install cosmonic-control oci://ghcr.io/cosmonic/cosmonic-control \
  --version 0.2.0 \
  --namespace cosmonic-system \
  --create-namespace \
  --set cosmonicLicenseKey="<insert license here>"

helm install hostgroup oci://ghcr.io/cosmonic/cosmonic-control-hostgroup --version 0.2.0 --namespace cosmonic-system --set http.enabled=true

Deploy the application

With the operator up and running we can start a HostGroup, which is a set of wasmCloud instances that are configured to work together.

With Helm CLI

# Note substitue your own pushed image
helm install weather-gov-mcp oci://ghcr.io/cosmonic-labs/charts/http-sample \
  -n weather-gov --create-namespace \
  --set component.image=ghcr.io/cosmonic-labs/components/weather-gov-mcp:0.1.0 \
  --set component.name=weather-gov-mcp

Connect to the deployed MCP server

If running with a k8s cluster, you can port forward:

kubectl -n cosmonic-system port-forward svc/hostgroup-default 9091:9091

Once you have a local port forward configured to your Cosmonic Control cluster, use the official MCP model inspector to connect.

You can start the MCP inspector via the following command:

npm run inspector

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

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    Maintenance

    ActivityInactive
    ResponsivenessNo recent community issues

    Resources

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