How do I install Krexel?

Krexel is a local plugin. Install it using npm package: krexel-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Krexel safe to use?

Krexel scored 5.4/10 (moderate risk) in MCP Marketplace's automated security scan. It has 3 high or critical findings to review. It's listed, but review the security report on this page before installing.

What credentials does Krexel need?

Krexel requires the following credentials or environment variables: YOUR_API_KEY. You can find setup instructions on the server detail page.

What AI apps work with Krexel?

Krexel 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

Krexel MCP Server

by Syfer Web

Developer ToolsModerate5.4MCP RegistryLocal

Free

Server data from the Official MCP Registry

MCP server for Krexel — ship and edit websites from any AI assistant that speaks MCP.

About

MCP server for Krexel — ship and edit websites from any AI assistant that speaks MCP.

Security Report

5.4

Moderate5.4Moderate Risk

Valid MCP server (2 strong, 4 medium validity signals). 8 known CVEs in dependencies (0 critical, 3 high severity) Package registry verified. Imported from the Official MCP Registry.

5 files analyzed · 9 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

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

env_vars

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

What You'll Need

Set these up before or after installing:

Your API key for the serviceRequired

Environment variable: YOUR_API_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-syfer-web-krexel-mcp": {
      "env": {
        "YOUR_API_KEY": "your-your-api-key-here"
      },
      "args": [
        "-y",
        "krexel-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

krexel-mcp

Ship and edit websites from any AI assistant that speaks the Model Context Protocol.

krexel-mcp is the official MCP server for Krexel — a "deploy a website" API for AI agents. Point any MCP-compatible client (Claude Desktop, Cursor, etc.) at this server and you can build, deploy, edit, list, rollback, and inspect sites by talking to your assistant.

Quickstart

Add krexel-mcp to your MCP client configuration:

{
  "mcpServers": {
    "krexel": {
      "command": "npx",
      "args": ["-y", "krexel-mcp"],
      "env": {
        "KREXEL_API_URL": "https://api.krexel.com",
        "KREXEL_API_KEY": "krx_live_…",
        "KREXEL_MASTER_KEY": "<your-32-byte-hex-key>"
      }
    }
  }
}

Restart your client. The assistant now sees nine Krexel tools.

Tools

Tool	What it does
`ship_site`	Upload a built site folder (1.0 quota). Returns a `deploy_id` and preview URL.
`update_site`	Edit a deployed site in place (0.1 quota). Applies a patch manifest.
`get_current_site`	Read the live file tree + contents for a domain.
`list_file_versions`	Show version history + unified diffs for a single file on a domain.
`list_deploys`	List recent deploys from local state. Optional domain filter.
`get_logs`	Fetch build logs for a deploy (streams from the orchestrator).
`rollback`	Roll back a domain to a previous deploy (real alias switch).
`set_env`	Encrypt and persist an env var for a domain (AES-256-GCM).
`get_status`	Return account, deploy count, and state directory.

Conversational edit-and-deploy workflow

The new update_site tool lets your assistant edit a deployed site conversationally. Each edit counts as 0.1 deploy against the monthly quota (vs. 1.0 for a full ship_site), so a free-tier user can do up to 100 AI edits per month.

The recommended flow:

Read the live file via get_current_site(domain="alex.dev"). This returns the file tree, sha256 hashes, and (by default) full contents.
Patch the file via update_site(domain, patches=[…]). The patch's find must appear verbatim in the live file — read first, then edit.
Verify with list_file_versions(domain, file="about.html") to see the diff your last edit produced.

Example patch op shapes:

{ "op": "create",       "file": "new.html", "content": "<h1>x</h1>" }
{ "op": "replace",       "file": "about.html", "find": "About", "value": "About Us" }
{ "op": "replace_all",   "file": "style.css",  "find": "red",   "value": "blue" }
{ "op": "delete",        "file": "old.html" }

Every patch becomes a real versioned deploy — rollback works the same as for full deploys, and the audit trail records parent_deploy_id for each edit.

All tools take plain JSON arguments and return JSON. Tool schemas are discoverable via the standard MCP tools/list request.

Configuration

Env var	Required	Default	Notes
`KREXEL_API_URL`	no	`http://localhost:8787`	Base URL of the Krexel orchestrator API.
`KREXEL_API_KEY`	no	—	Bearer token (`krx_live_…`) for API auth.
`KREXEL_MASTER_KEY`	yes*	—	32-byte hex string for env-var encryption. *Required for `set_env`.

State files are written under $KREXEL_HOME (default ~/.krexel/).

License

MIT © Syfer

Reviews

No reviews yet

Be the first to review this server!

More Developer Tools MCP Servers

Toleno

Free

by Toleno · Developer Tools

Toleno Network MCP Server — Manage your Toleno mining account with Claude AI using natural language.

mcp-creator-python

Free

by mcp-marketplace · Developer Tools

Create, build, and publish Python MCP servers to PyPI — conversationally.

MarkItDown

Free

by Microsoft · Content & Media

Convert files (PDF, Word, Excel, images, audio) to Markdown for LLM consumption

Krexel MCP Server

About

Security Report

Findings (9)Action required

Permissions Required

What You'll Need

How to Install

Documentation

krexel-mcp

Quickstart

Tools

Conversational edit-and-deploy workflow

Configuration

License

Reviews

No reviews yet

More Developer Tools MCP Servers

Toleno

mcp-creator-python

MarkItDown

MCP Marketplace

FinAgent

mcp-creator-typescript