Hermes MCP Server
A lightweight Node.js MCP server with zero dependencies offering 9 built-in tools for system info, web fetching, GitHub search, file operations, shell execution, and key-value memory, enabling AI agents to perform these tasks via the Model Context Protocol.
README
Hermes MCP Server ??
A lightweight Model Context Protocol server built with pure Node.js ? zero dependencies, 9 built-in tools.
Quick Start
# No install needed ? just run with Node.js
node server.mjs
Send JSON-RPC 2.0 messages over stdin:
{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}
CLI Client
The repo includes mcp.mjs ? a convenient CLI wrapper:
node mcp.mjs system_info
node mcp.mjs web_search_github query="OpenClaw" limit=3
node mcp.mjs web_fetch url="https://example.com"
node mcp.mjs memory_store key="hello" value="world"
node mcp.mjs memory_get key="hello"
Available Tools
| Tool | Description |
|---|---|
system_info |
OS, hostname, arch, Node version |
web_fetch |
Fetch any URL (with timeout) |
web_search_github |
Search GitHub repositories |
file_read |
Read file content |
file_write |
Write content to file |
file_list |
List directory contents |
shell_exec |
Execute shell commands |
memory_store |
Persist key-value data |
memory_get |
Retrieve stored data |
Why?
MCP lets AI agents use tools in a standardized way. This server provides a foundation for:
- Adding web search and file operations to any MCP-compatible agent
- Building custom MCP toolchains
- Learning the MCP protocol internals
License
MIT
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