A
license-
qualityD
maintenanceA minimal, production-ready MCP server with a simple addition calculator tool that demonstrates integration with the Model Context Protocol.
8
1
MIT
hello-world
by isaac-dev0
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@hello-worldadd 2 and 3"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
hello-world
A minimal MCP server you can deploy to Volken in about five minutes. It exposes three trivial tools so you can see the whole loop end to end: deploy from GitHub, connect an AI client, watch the calls land.
Tool | Does |
| Returns the message you send it |
| Adds two numbers |
| Returns the current time as ISO 8601 |
The server speaks the MCP Streamable HTTP transport at the root path and listens on
the port Volken provides in PORT (it falls back to 8080 locally).
Deploy it
You need Node.js 20+, a GitHub account, and an AI client (Claude Desktop, Claude Code, or Cursor).
Make it yours. Click Use this template (or fork), then clone your copy.
Install the CLI and sign in:
npm install -g volken volken loginInitialise and deploy:
volken init volken deployvolken initdetects the runtime and writes yourvolken.toml.volken deploybuilds from your repository and prints your endpoint and a gateway token.Connect an AI client:
volken connect --install --token <your-token>Restart the client, then ask it to "add 2 and 3" or "what time is it".
Watch the calls:
volken calls --tail
Related MCP server: MCP Server Deployment Demo
Run it locally
volken devThis runs the server in the MCP Inspector so you can call the tools from a browser before you deploy.
Add your own tool
Each tool is a server.registerTool(name, config, handler) call in
src/index.ts. Copy one, give it a name, an input schema, and a
handler, then redeploy.
Learn more
Volken docs: https://docs.volken.dev
MCP TypeScript SDK: https://github.com/modelcontextprotocol/typescript-sdk
This server cannot be installed
Maintenance
–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity
Resources
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Looking for Admin?
If you are the server author, to access and configure the admin panel.
Related MCP Servers
- FlicenseCqualityDmaintenanceA demonstration MCP server that provides a simple addition tool for learning how to create and deploy servers following the Model-Context-Protocol specification. Serves as a basic example for developers getting started with MCP server development.1
- Flicense-qualityDmaintenanceA minimal reference implementation of an MCP server with two basic math tools (add and multiply), designed as a starting point for learning MCP protocol and deploying remote servers to cloud platforms.1
- FlicenseAqualityCmaintenanceA simple local MCP server that provides greeting and integer addition tools.2
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