How do I connect Emacs MCP Server to Claude?

The listing records `claude mcp add emacs -- socat - UNIX-CONNECT:$HOME/.config/emacs/.local/cache/emacs-mcp-server.sock # Uses socat directly` as its setup step. Run it, then follow the repository's instructions for the client configuration; the listing names Claude Desktop, Claude Code, Cursor as compatible clients.

Is Emacs MCP Server free?

The listed licence is GPL-3.0. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.

What can Emacs MCP Server do?

Emacs MCP Server documents 15 tools to the agent, including eval-elisp, get-diagnostics, org-agenda. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.

Emacs MCP Server

Unclaimed

by rhblind

Pure ELISP MCP server for Emacs

Install

claude mcp add emacs -- socat - UNIX-CONNECT:$HOME/.config/emacs/.local/cache/emacs-mcp-server.sock  # Uses socat directly

Set up this server

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This server needs project-specific setup. Follow the project instructions; no reusable public launch command is available yet.

Project instructions

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Security profile

Claimed and verified servers get a weekly static scan that shows what the code can reach: external services, environment variables, shell commands, agent configuration folders, plus any dependencies with known advisories. Claim this listing to get one. How the security profile works

15 of 15 tools

Documented tools (15)

From project documentation. A server handshake does not verify each tool’s description or behavior.

eval-elisp

Executes an arbitrary Elisp expression in the running Emacs process and returns the printed result. The expression passes through the security layer, which blocks dangerous functions and credential-bearing files (see Security).

get-diagnostics

Retrieves errors and warnings from flycheck or flymake (auto-detected per buffer) across all project buffers. Results are grouped by file and sorted by severity.

org-agenda

structured agenda and TODO views.

org-archive

archive a heading to its configured archive target.

org-capture

create a new entry; template mode respects the user's

org-clock

clock in, out, or cancel.

org-get-node

fetch a heading or file body.

org-list-tags

enumerate existing tags with usage counts so the LLM can

org-list-templates

enumerate the user's capture templates so the LLM

org-refile

move a heading under another.

org-roam-capture

create a new node, respecting

org-roam-get-node

fetch a node with its backlinks.

org-roam-search

find nodes by title, alias, tag, or ref.

org-search

heading search using org's match syntax ("+work-home/!TODO" etc.).

org-update-node

update title, TODO state, priority, tags, properties,

Tool change history

Compared across complete checks of the same configuration. Tools were listed, not invoked. Input-schema changes are not measured here.

No complete tool checks yet.

FAQ

Questions about Emacs MCP Server

How do I connect Emacs MCP Server to Claude?: The listing records `claude mcp add emacs -- socat - UNIX-CONNECT:$HOME/.config/emacs/.local/cache/emacs-mcp-server.sock # Uses socat directly` as its setup step. Run it, then follow the repository's instructions for the client configuration; the listing names Claude Desktop, Claude Code, Cursor as compatible clients.
Is Emacs MCP Server free?: The listed licence is GPL-3.0. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
What can Emacs MCP Server do?: Emacs MCP Server documents 15 tools to the agent, including eval-elisp, get-diagnostics, org-agenda. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.