Is Hermes Agent free?

Yes, Hermes Agent is free to use.

How do I install Hermes Agent?

Hermes Agent is a local plugin. Install it using PyPI package: hermes-agent-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Hermes Agent safe to use?

Hermes Agent scored 5.2/10 (moderate risk) in MCP Marketplace's automated security scan. It has 5 high or critical findings to review. It's listed, but review the security report on this page before installing.

What credentials does Hermes Agent need?

Hermes Agent requires the following credentials or environment variables: HERMES_HOME, HERMES_MCP_ALLOW_WRITE, HERMES_MCP_ALLOW_SHELL. You can find setup instructions on the server detail page.

What AI apps work with Hermes Agent?

Hermes Agent uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

Back to Browse

Hermes Agent MCP Server

by Woonyong Choi

Developer ToolsModerate5.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

Operate a local Hermes Agent install over stdio: tasks, cron, config, gateway, doctor. No network.

About

Operate a local Hermes Agent install over stdio: tasks, cron, config, gateway, doctor. No network.

Security Report

5.2

Moderate5.2Moderate Risk

This MCP server exhibits strong security fundamentals with a defensive design philosophy. The codebase properly isolates CLI execution through argument lists (no shell injection), implements an allowlist for subcommands, and redacts sensitive credentials before returning output. Permissions are appropriately scoped to local stdio-only operation with no network exposure by design. Minor findings include unvalidated input on the `shell` tool (opt-in by configuration) and a potential edge case in HMAC validation, but these do not materially impact the security posture. Supply chain analysis found 5 known vulnerabilities in dependencies (0 critical, 5 high severity). Package verification found 1 issue.

7 files analyzed · 10 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

env_vars

Check that this permission is expected for this type of plugin.

process_spawn

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

Hermes data directory (default ~/.hermes)Optional

Environment variable: HERMES_HOME

Allow state-changing tools (default 1)Optional

Environment variable: HERMES_MCP_ALLOW_WRITE

Enable the shell tool (default 0)Optional

Environment variable: HERMES_MCP_ALLOW_SHELL

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-woonyong-choi-hermes-agent-mcp": {
      "env": {
        "HERMES_HOME": "your-hermes-home-here",
        "HERMES_MCP_ALLOW_SHELL": "your-hermes-mcp-allow-shell-here",
        "HERMES_MCP_ALLOW_WRITE": "your-hermes-mcp-allow-write-here"
      },
      "args": [
        "hermes-agent-mcp"
      ],
      "command": "uvx"
    }
  }
}

Reviews

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4.8

Local

MCP Marketplace

Free

by mcp-marketplace · Developer Tools

Search and install MCP servers from inside your AI client.

Hermes Agent MCP Server

About

Security Report

Findings (10)Action required

Permissions Required

What You'll Need

How to Install

Reviews

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