Krexel MCP Server

Ship websites from any MCP-compatible AI assistant. Deploy, list, rollback, logs, env.

Local serverstdio

What is the Krexel MCP server?

Krexel MCP server exists for a simple reason — assistants are far more useful when they can act on Krexel directly instead of describing what you should do. Ship websites from any MCP-compatible AI assistant. Deploy, list, rollback, logs, env.

What you get

krexel-mcp is the official MCP server for Krexel — a "your AI ships and edits your live site" API. Point any MCP-compatible client (Claude Desktop, Cursor, Windsurf, VS Code) at this server and your assistant can deploy, list, edit, rollback, and inspect sites just by talking.

Setting it up

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.

What the assistant can call

Once Krexel is connected, these are the calls the assistant has available:

  • ship_site — Upload a built site folder. Returns a deploy_id and preview URL
  • edit_file — Patch a deployed site (create / replace / replace_all / delete). 0.1 deploy
  • list_files — List the files in a deployed site (path + size + sha256)
  • read_file — Read one file's content from a deployed site
  • list_deploys — List recent deploys from local state. Optional domain filter
  • get_logs — Fetch build logs for a deploy
  • rollback — Mark a previous deploy as the current good version
  • set_env — Encrypt and persist an env var for a domain (AES-256-GCM)
  • get_status — Return account, deploy count, plan, and state directory

Configuration and credentials

You will need 3 environment variables: KREXEL_API_URL, KREXEL_API_KEY, KREXEL_MASTER_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • With 9 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Krexel.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the krexel mcp server does with a few real requests.

Choosing this one

Among the cloud and infrastructure options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Krexel's toolset — ship_site, edit_file, list_files and 6 more — is a fair guide to whether it matches your workflow. It is maintained by Syfer-web; worth a glance at recent repository activity before you build anything load-bearing on it.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Available tools

ToolWhat it does
ship_siteUpload a built site folder. Returns a deploy_id and preview URL.
edit_filePatch a deployed site (create / replace / replace_all / delete). 0.1 deploy.
list_filesList the files in a deployed site (path + size + sha256).
read_fileRead one file's content from a deployed site.
list_deploysList recent deploys from local state. Optional domain filter.
get_logsFetch build logs for a deploy.
rollbackMark a previous deploy as the current good version.
set_envEncrypt and persist an env var for a domain (AES-256-GCM).
get_statusReturn account, deploy count, plan, and state directory.

How to install the Krexel MCP server

{
  "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>"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
KREXEL_API_URLEndpoint or connection string the server talks to.Yes
KREXEL_API_KEYCredential the server authenticates with.Yes
KREXEL_MASTER_KEYCredential the server authenticates with.Yes

Example prompts to try

  • Use Krexel to ship site.
  • Use Krexel to edit file.
  • Use Krexel to list files.

Frequently asked questions

It connects Krexel to MCP-compatible AI assistants such as Claude and Cursor, exposing 9 tools (ship_site, edit_file, list_files, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Krexel directly.