echo-mcp-server-for-testing

@piebro

About echo-mcp-server-for-testing

A simple echo MCP (Model Context Protocol) Server for testing MCP Clients.

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "echo-mcp-server-for-testing": {
      "name": "echo-mcp-server-for-testing",
      "command": "uvx",
      "args": [
        "echo-mcp-server-for-testing"
      ],
      "env": {
        "SECRET_KEY": "123456789"
      }
    }
  }
}

Tools

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Overview

What is echo-mcp-server-for-testing?

echo-mcp-server-for-testing is a simple echo MCP (Model Context Protocol) Server that provides an echo_tool for testing MCP Clients. It is also intended as a template for building new MCP Servers.

How to use echo-mcp-server-for-testing?

Install and run the server using uvx or by cloning the repository and using uv with a directory. Add the appropriate configuration to your MCP client’s config file, including the required SECRET_KEY environment variable.

Key features of echo-mcp-server-for-testing

Provides an echo_tool for testing MCP Clients.
Can be used as a template for new MCP Servers.
Simple to run with uvx or local uv.
Requires a SECRET_KEY environment variable.
Supports testing via mcp-client-for-testing.
MIT licensed.

Use cases of echo-mcp-server-for-testing

Testing MCP Client implementations and tool invocation.
Starting point for developing new MCP Servers.
Verifying tool call/response flow in a controlled environment.
Learning the MCP protocol basics.

FAQ from echo-mcp-server-for-testing

What is the purpose of echo-mcp-server-for-testing?

It is a simple echo MCP Server with an echo_tool for testing MCP Clients, and also serves as a template for new MCP Servers.

How do I install and run echo-mcp-server-for-testing?

You can run it via uvx echo-mcp-server-for-testing or clone the repo and use uv with a directory. Add the appropriate configuration to your MCP client config, including the SECRET_KEY environment variable.

What environment variable is required?

The SECRET_KEY environment variable is required.

How can I test the echo_tool?

Use mcp-client-for-testing (available on GitHub) with a tool call like {"name": "echo_tool", "arguments": {"message": "Hello, world!"}}.

What license is this project under?

MIT License.

Frequently asked questions

What is the purpose of echo-mcp-server-for-testing?

It is a simple echo MCP Server with an `echo_tool` for testing MCP Clients, and also serves as a template for new MCP Servers.

How do I install and run echo-mcp-server-for-testing?

You can run it via `uvx echo-mcp-server-for-testing` or clone the repo and use `uv` with a directory. Add the appropriate configuration to your MCP client config, including the `SECRET_KEY` environment variable.