How do I install the cryo mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

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Cryo MCP Server

Easily pickle/serialize/freeze/store and re-hydrate complex JavaScript objects (including Functions)

Local serverstdioPython

What is the Cryo MCP Server?

Easily pickle/serialize/freeze/store and re-hydrate complex JavaScript objects (including Functions)

What you get

Built for node.js and browsers. Cryo is inspired by Python's pickle and works similarly to JSON.stringify() and JSON.parse(). Cryo.stringify() and Cryo.parse() improve on JSON in these circumstances:

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
browser	Add the [latest minified build](https://github.com/hunterloftis/cryo/tree/master/build) to your project as a script:

How to install the Cryo MCP Server

{
  "mcpServers": {
    "cryo": {
      "command": "npx",
      "args": ["-y", "cryo"]
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Example prompts to try

“Use Cryo to browser.”
“Use Cryo to Undefined.”
“Use Cryo to Date.”

Frequently asked questions

Easily pickle/serialize/freeze/store and re-hydrate complex JavaScript objects (including Functions) Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.