Developer · Local MCP server

Clipboard MCP Server

Read, write, and inspect the system clipboard on macOS, Linux (X11/Wayland), and Windows via MCP.

What the MCP Registry states

The entry as published to the official MCP Registry (read 2026-10-04), latest version.

Registry name
io.github.cyanheads/clipboard-mcp-server
Version
0.2.5
Status
Active
Category
developer
Transport
stdio (local process), Streamable HTTP
Package
npm
Published
2026-09-24
Updated
2026-09-24
Publisher
cyanheads (GitHub) · 140 servers with pages here
Repository
github.com/cyanheads/clipboard-mcp-server
Source
Registry API entry

Packages

RegistryPackageVersionTransportEnvironment variables
npmruntime: node@cyanheads/clipboard-mcp-server0.2.5stdioMCP_LOG_LEVEL, CLIPBOARD_READ_ONLY
npmruntime: node@cyanheads/clipboard-mcp-server0.2.5HTTPMCP_HTTP_HOST, MCP_HTTP_PORT, MCP_HTTP_ENDPOINT_PATH, MCP_AUTH_MODE, MCP_LOG_LEVEL, MCP_HTTP_MAX_BODY_BYTES, MCP_SESSION_MODE, CLIPBOARD_READ_ONLY

How to connect Clipboard MCP Server

Clipboard MCP Server runs locally from a Node.js package published to the npm registry: @cyanheads/clipboard-mcp-server version 0.2.5. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Node.js; clients usually start it with npx — the usual command is npx -y @cyanheads/clipboard-mcp-server@0.2.5; the entry names node as the runtime. It reads these environment variables: MCP_LOG_LEVEL and CLIPBOARD_READ_ONLY; set them in the client's configuration for this server.

Clipboard MCP Server runs locally from a Node.js package published to the npm registry: @cyanheads/clipboard-mcp-server version 0.2.5. The package starts a local server that speaks MCP over Streamable HTTP; the client then connects to it by URL (the entry names node as the runtime). It reads these environment variables: MCP_HTTP_HOST, MCP_HTTP_PORT, MCP_HTTP_ENDPOINT_PATH, MCP_AUTH_MODE, MCP_LOG_LEVEL, MCP_HTTP_MAX_BODY_BYTES, MCP_SESSION_MODE and CLIPBOARD_READ_ONLY; set them in the client's configuration for this server.

In the mcpServers JSON format that many desktop and editor MCP clients read, the entry looks like this (placeholders in angle brackets):

{
  "mcpServers": {
    "clipboard-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/clipboard-mcp-server@0.2.5"
      ],
      "env": {
        "MCP_LOG_LEVEL": "<value>",
        "CLIPBOARD_READ_ONLY": "<value>"
      }
    }
  }
}

Derived from the registry entry, not tested here. What the server does, and on what terms, is set by its publisher; check its repository or website before giving it access to your accounts or files. How to add an MCP server to an assistant · Before you connect

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