MCP TypeScript Simple Template
Provides the runtime environment for the MCP server, enabling server-side execution of the tools and communication via standard I/O.
Supports package management for the MCP server, allowing easy installation of dependencies and execution of build scripts.
Serves as the foundation for building custom MCP tools, providing type safety and structure for implementing tools that can be integrated with AI systems.
Alternative package manager for the MCP server, offering another option for dependency management and script execution.
Used for schema validation to define and validate tool inputs, ensuring properly formatted data is provided to the MCP tools.
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., "@MCP TypeScript Simple Templatecalculate my BMI: height 175cm, weight 70kg"
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.
MCP TypeScript Simple Template
A simple TypeScript template for building Model Context Protocol (MCP) servers. This project provides a foundation for creating custom MCP tools that can be integrated with AI systems.
Overview
This template implements a basic MCP server with a sample BMI calculator tool. It demonstrates how to:
Set up an MCP server in TypeScript
Define and implement MCP tools with input validation using Zod
Connect the server to standard I/O for communication
Related MCP server: MCP Server Python Template
Prerequisites
Node.js (v20 or higher recommended)
npm or yarn
Installation
Clone this repository
Install dependencies:
npm installProject Structure
index.ts- Main server implementation with sample toolpackage.json- Project dependencies and scriptstsconfig.json- TypeScript configuration
Usage
Building and Running
Build and start the server:
npm startThis will compile the TypeScript code and start the MCP server.
Development
For development, you can:
Modify
index.tsto add your own toolsRun the build command to compile:
npm run buildCreating Custom Tools
To create a new tool, follow this pattern in index.ts:
server.tool(
"your-tool-name",
{
// Define input schema using Zod
paramName: z.string(),
// Add more parameters as needed
},
async ({ paramName }) => ({
content: [{
type: "text",
text: "Your tool's response"
}]
})
);Dependencies
@modelcontextprotocol/sdk- Core MCP SDKzod- Schema validationdotenv- Environment variable managementtypescript- TypeScript compiler
License
ISC
Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
Available Tools
2 toolscalculate-bmiD
| Name | Required | Description | Default |
|---|---|---|---|
| heightM | Yes | ||
| weightKg | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Tool has no description.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Tool has no description.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Tool has no description.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Tool has no description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Tool has no description.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Tool has no description.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
echoD
| Name | Required | Description | Default |
|---|---|---|---|
| text | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Tool has no description.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Tool has no description.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Tool has no description.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Tool has no description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Tool has no description.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Tool has no description.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
TDQS
The two tools have clearly distinct purposes: calculate_bmi is for health-related calculations, while echo is for text repetition. There is no overlap or ambiguity between them, making it easy for an agent to choose the right tool.
The naming is inconsistent: calculate_bmi uses kebab-case, while echo uses lowercase without a clear pattern. There is no consistent verb_noun convention, and the styles are mixed, though the names are still readable.
With only 2 tools, the server feels too thin for a general-purpose template. It lacks depth and variety, suggesting an incomplete or minimal implementation that doesn't fully cover a meaningful domain.
The server is severely incomplete; it only offers two unrelated tools with no descriptions, making it impossible to assess domain coverage. There are obvious gaps, and it doesn't support any coherent workflow or lifecycle.
Maintenance
Resources
Unclaimed servers have limited discoverability.
Looking for Admin?
If you are the server author, to access and configure the admin panel.
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