Is io.github.it-atelier-gn/claws-mail-mcp-plugin safe to use?

io.github.it-atelier-gn/claws-mail-mcp-plugin has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under GPL-3.0.

How do I install io.github.it-atelier-gn/claws-mail-mcp-plugin?

io.github.it-atelier-gn/claws-mail-mcp-plugin can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with io.github.it-atelier-gn/claws-mail-mcp-plugin?

io.github.it-atelier-gn/claws-mail-mcp-plugin is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is io.github.it-atelier-gn/claws-mail-mcp-plugin actively maintained?

io.github.it-atelier-gn/claws-mail-mcp-plugin is actively maintained — last commit was 5 days ago. It has 1 GitHub stars.

io.github.it-atelier-gn/claws-mail-mcp-plugin

Claws Mail plugin exposing the running mail client over a local, bearer-token MCP endpoint.

1 GitHub

No known CVEs

GPL-3.0 license

Actively maintained

Last commit 5d ago

Works with most clients

Transport: stdio, sse, http

0 tools

Grade F

MCPpedia last refreshed this data 8h ago

Edit this pageView history

io.github.it-atelier-gn/claws-mail-mcp-plugin is an MCP server that claws Mail plugin exposing the running mail client over a local, bearer-token MCP endpoint. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 39/100 on MCPpedia's security, maintenance and efficiency rubric.

Communication Cloud

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-it-atelier-gn-claws-mail-mcp-plugin": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-it-atelier-gn-claws-mail-mcp-plugin)](https://mcppedia.org/s/io-github-it-atelier-gn-claws-mail-mcp-plugin)

Read me

What io.github.it-atelier-gn/claws-mail-mcp-plugin does

Native Claws Mail plugin that exposes the running mail client as an MCP server.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

39/100across 5 weighted dimensions

How we score →

0255075100

−61

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.it-atelier-gn/claws-mail-mcp-plugin safe to use?: io.github.it-atelier-gn/claws-mail-mcp-plugin has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under GPL-3.0.
How do I install io.github.it-atelier-gn/claws-mail-mcp-plugin?: io.github.it-atelier-gn/claws-mail-mcp-plugin can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with io.github.it-atelier-gn/claws-mail-mcp-plugin?: io.github.it-atelier-gn/claws-mail-mcp-plugin is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is io.github.it-atelier-gn/claws-mail-mcp-plugin actively maintained?: io.github.it-atelier-gn/claws-mail-mcp-plugin is actively maintained — last commit was 5 days ago. It has 1 GitHub stars.

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Communication Cloud

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-it-atelier-gn-claws-mail-mcp-plugin": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-it-atelier-gn-claws-mail-mcp-plugin)](https://mcppedia.org/s/io-github-it-atelier-gn-claws-mail-mcp-plugin)

Read me

What io.github.it-atelier-gn/claws-mail-mcp-plugin does

Native Claws Mail plugin that exposes the running mail client as an MCP server.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

claws-mail-mcp-plugin

Native Claws Mail plugin that exposes the running mail client as an MCP server.

It runs inside Claws Mail and serves a local, loopback-only HTTP endpoint (JSON-RPC over MCP, bearer-token protected). Any MCP-capable AI tool can then read folders and messages, search, compose, reply, forward, manage folders and flags, and send or receive mail through your already-configured accounts. Endpoint, port, token and read-only mode are set in mcp_pluginrc inside the Claws Mail config directory; the plugin writes a ready-to-paste client config to mcp_client.json in the same place on every start.

Installing the plugin

Prebuilt binaries are attached to each release, one per OS and supported Claws Mail version (e.g. mcp_plugin-linux-claws4.3.1.so, mcp_plugin-windows-claws4.3.0.dll). Pick the file matching your Claws Mail version and OS, then:

Copy it into your Claws Mail plugin directory (pkg-config --variable=plugindir claws-mail, typically ~/.claws-mail/plugins or %APPDATA%\Claws-mail\plugins on Windows).
Restart Claws Mail.
Enable it under Configuration > Plugins if it is not loaded automatically.

To build from source instead, see Building.

Connecting an AI tool

Once loaded, the plugin writes the real endpoint URL and bearer token to mcp_client.json in the Claws Mail config directory. Use those two values with whichever method below matches your tool. The server is loopback-only (127.0.0.1), so it is reachable only from AI tools running on the same machine as Claws Mail.

Claude Code

claude mcp add --transport http claws-mail http://127.0.0.1:8765/mcp \
  --header "Authorization: Bearer <TOKEN>"

Claude Desktop

Settings > Developer > Edit Config, then merge in packaging/claude/mcp.json (fill in <TOKEN>). Do not use the "Add custom connector" UI for this server: that flow connects from Anthropic's servers, not from your machine, so it cannot reach a loopback address.

VS Code / GitHub Copilot Chat

code --add-mcp "{\"name\":\"claws-mail\",\"type\":\"http\",\"url\":\"http://127.0.0.1:8765/mcp\",\"headers\":{\"Authorization\":\"Bearer <TOKEN>\"}}"

Or copy packaging/vscode/mcp.json to .vscode/mcp.json; it prompts for the token instead of storing it in the file.

Codex CLI

export CLAWS_MCP_TOKEN=<TOKEN>
codex mcp add claws-mail --url http://127.0.0.1:8765/mcp --bearer-token-env-var CLAWS_MCP_TOKEN

This matches packaging/codex/config.toml, which Codex reads from ~/.codex/config.toml.

MCP registry

packaging/registry/server.json is published to the MCP registry as io.github.it-atelier-gn/claws-mail-mcp-plugin on every tagged release, via .github/workflows/ci.yml's publish-registry job (GitHub OIDC auth, no stored credentials). The registry rejects loopback URLs as remotes, so this is a discovery-only listing without connection details; it links back to this README for installation and the per-tool commands above.

Building

Requires Meson, Ninja, a C compiler, and the Claws Mail development files (GTK3, GLib, GnuTLS, libgcrypt, enchant).

Linux

Install dependencies (Debian/Ubuntu example):

sudo apt-get install build-essential meson ninja-build pkg-config \
  libgtk-3-dev libglib2.0-dev libgnutls28-dev libgcrypt20-dev libenchant-2-dev

If a claws-mail pkg-config file is not already on your system, build one with:

PREFIX="$PWD/.claws-sdk" ci/build-claws-sdk.sh
export PKG_CONFIG_PATH

... [View full README on GitHub](https://github.com/it-atelier-gn/claws-mail-mcp-plugin#readme)

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

39/100across 5 weighted dimensions

How we score →

0255075100

−61

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.it-atelier-gn/claws-mail-mcp-plugin safe to use?: io.github.it-atelier-gn/claws-mail-mcp-plugin has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under GPL-3.0.
How do I install io.github.it-atelier-gn/claws-mail-mcp-plugin?: io.github.it-atelier-gn/claws-mail-mcp-plugin can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with io.github.it-atelier-gn/claws-mail-mcp-plugin?: io.github.it-atelier-gn/claws-mail-mcp-plugin is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is io.github.it-atelier-gn/claws-mail-mcp-plugin actively maintained?: io.github.it-atelier-gn/claws-mail-mcp-plugin is actively maintained — last commit was 5 days ago. It has 1 GitHub stars.