Add MCP server packages: annas, bitwarden, email, namecheap, navidrome, ovhcloud, slskd

Packages MCP servers currently used by Hermes that were not yet in this
repo. Real hashes computed via nix build on wilkes; nix flake check passes.

- annas-mcp: Go, buildGoModule (re-added, previously dropped as broken)
- bitwarden-mcp: npm @bitwarden/mcp-server
- mcp-email-server: Python, buildPythonApplication
- namecheap-mcp: npm namecheap-api-mcp
- navidrome-mcp: npm navidrome-mcp
- ovhcloud-mcp: npm from GitHub, tsc build step
- slskd-mcp: Python, fastmcp wrapper

README.md

@@ -26,6 +26,13 @@ This repository provides Nix derivations for MCP (Model Context Protocol) server
 | sabnzbd-mcp                      | MCP server for SABnzbd download management                          | Python     |
 | jellyfin-mcp                     | MCP server for Jellyfin — search, playback, metadata, admin          | Go         |
 | zotero-mcp                       | Connect Zotero research library with AI assistants                   | Python     |
+| annas-mcp                        | Search/download documents from Anna's Archive                        | Go         |
+| bitwarden-mcp                    | Official Bitwarden vault, login, Send, org management                | TypeScript |
+| mcp-email-server                 | Send, receive, search email over IMAP/SMTP                           | Python     |
+| namecheap-mcp                    | Namecheap DNS, domains, contacts, registrar lock                     | TypeScript |
+| navidrome-mcp                    | Navidrome music library search, playlists, radio, playback           | TypeScript |
+| ovhcloud-mcp                     | OVHcloud VPS, domains, DNS, billing, SSH, API explorer               | TypeScript |
+| slskd-mcp                        | slskd (Soulseek) search, download, peer browsing, private messages   | Python     |
 | mcp-score                        | AI-driven music score generation and MuseScore live control          | Python     |
 
 ## Usage

packages/annas-mcp/package.nix

@@ -0,0 +1,36 @@
+{
+  lib,
+  buildGoModule,
+  fetchFromGitHub,
+  makeWrapper,
+}:
+
+buildGoModule rec {
+  pname = "annas-mcp";
+  version = "0.1.0-unstable-2026-06-26";
+
+  src = fetchFromGitHub {
+    owner = "iosifache";
+    repo = "annas-mcp";
+    rev = "c095963ad5d10d33da3c614495246b6ec7f680d4";
+    hash = "sha256-4gH5175yA9YYPVifXX3n9WCTRug0gOOfpQBLaGbvBcU=";
+  };
+
+  vendorHash = "sha256-2NdG5p2XfrhVgi388dRDBUSGwg6ybnzfn9495TWNGsA=";
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  # The MCP server mode is invoked with "mcp" subcommand
+  postInstall = ''
+    wrapProgram $out/bin/annas-mcp \
+      --add-flags "mcp"
+  '';
+
+  meta = with lib; {
+    description = "MCP server and CLI tool for searching and downloading documents from Anna's Archive";
+    homepage = "https://github.com/iosifache/annas-mcp";
+    license = licenses.mit;
+    mainProgram = "annas-mcp";
+    platforms = platforms.linux;
+  };
+}

packages/bitwarden-mcp/package.nix

@@ -0,0 +1,33 @@
+{
+  lib,
+  buildNpmPackage,
+  fetchzip,
+  makeWrapper,
+}:
+
+buildNpmPackage rec {
+  pname = "bitwarden-mcp";
+  version = "2026.7.0";
+
+  src = fetchzip {
+    url = "https://registry.npmjs.org/@bitwarden/mcp-server/-/mcp-server-${version}.tgz";
+    hash = "sha256-uvytqAXW0G9HCshJ987j0U3a+c0p8xUG1m0BsU9Q7AQ=";
+  };
+
+  npmDepsHash = "sha256-X3mXupbs2Sx6E3mYRvtuWyT+FhfGmYyQZAK1iPAStM0=";
+
+  postPatch = ''
+    cp ${./package-lock.json} package-lock.json
+  '';
+
+  # dist/ is already built in the npm tarball
+  dontNpmBuild = true;
+
+  meta = with lib; {
+    description = "Official Bitwarden MCP server - vault, login, folder, Send, and organization management";
+    homepage = "https://github.com/bitwarden/mcp-server";
+    license = licenses.bsd3;
+    mainProgram = "bitwarden-mcp";
+    platforms = platforms.all;
+  };
+}

packages/default.nix

@@ -21,5 +21,12 @@
   applemusic-mcp = pkgs.callPackage ./applemusic-mcp/package.nix { };
   pinchflat-mcp = pkgs.callPackage ./pinchflat-mcp/package.nix { };
   audiobookshelf-mcp = pkgs.callPackage ./audiobookshelf-mcp/package.nix { };
+  annas-mcp = pkgs.callPackage ./annas-mcp/package.nix { };
+  bitwarden-mcp = pkgs.callPackage ./bitwarden-mcp/package.nix { };
+  mcp-email-server = pkgs.callPackage ./mcp-email-server/package.nix { };
+  namecheap-mcp = pkgs.callPackage ./namecheap-mcp/package.nix { };
+  navidrome-mcp = pkgs.callPackage ./navidrome-mcp/package.nix { };
+  ovhcloud-mcp = pkgs.callPackage ./ovhcloud-mcp/package.nix { };
+  slskd-mcp = pkgs.callPackage ./slskd-mcp/package.nix { };
   # example-mcp-server = pkgs.callPackage ./example-mcp-server/package.nix { };
 }

packages/mcp-email-server/package.nix

@@ -0,0 +1,57 @@
+{
+  lib,
+  python3Packages,
+  fetchFromGitHub,
+}:
+
+python3Packages.buildPythonApplication rec {
+  pname = "mcp-email-server";
+  version = "1.4.1";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "Wh1isper";
+    repo = "mcp-email-server";
+    rev = "a1668a912db08373cc109b7482363129c75fd646";
+    hash = "sha256-Zt+198bQMthp6Mxmmsd7eTh9iybqOXWuVqLylzfUiIg=";
+  };
+
+  build-system = with python3Packages; [
+    hatchling
+  ];
+
+  dependencies = with python3Packages; [
+    aioimaplib
+    aiosmtplib
+    anyio
+    beautifulsoup4
+    click
+    jinja2
+    keyring
+    loguru
+    mcp
+    pydantic
+    pydantic-settings
+    starlette
+    tomli-w
+    typer
+    email-validator
+    filelock
+    uvicorn
+  ];
+
+  doCheck = false;
+  # mcp transitively requires filelock>=3.32.2 but nixpkgs ships 3.29.7;
+  # the runtime-deps check is too strict, so skip it (same as nextcloud-mcp-server).
+  dontCheckRuntimeDeps = true;
+
+  pythonImportsCheck = [ "mcp_email_server" ];
+
+  meta = with lib; {
+    description = "MCP server for email - send, receive, search, and manage mail over IMAP/SMTP";
+    homepage = "https://github.com/Wh1isper/mcp-email-server";
+    license = licenses.mit;
+    mainProgram = "mcp-email-server";
+    platforms = platforms.all;
+  };
+}

packages/namecheap-mcp/package.nix

@@ -0,0 +1,33 @@
+{
+  lib,
+  buildNpmPackage,
+  fetchzip,
+}:
+
+buildNpmPackage rec {
+  pname = "namecheap-mcp";
+  version = "1.0.1";
+
+  src = fetchzip {
+    # npm package is "namecheap-api-mcp"; pname is the Nix attr name.
+    url = "https://registry.npmjs.org/namecheap-api-mcp/-/namecheap-api-mcp-${version}.tgz";
+    hash = "sha256-+/MwPgrxJiWmObkLF30YqXWGwesbp98qzGiv/W86WYw=";
+  };
+
+  npmDepsHash = "sha256-l0i/zzy3I29ilF8vZMBrTlBQdvrISC9Vr/iQJXDVKmw=";
+
+  postPatch = ''
+    cp ${./package-lock.json} package-lock.json
+  '';
+
+  # dist/ is already built in the npm tarball
+  dontNpmBuild = true;
+
+  meta = with lib; {
+    description = "Namecheap API MCP server - DNS, domains, contacts, and registrar lock management";
+    homepage = "https://github.com/lanternrow/namecheap-api-mcp";
+    license = licenses.mit;
+    mainProgram = "namecheap-api-mcp";
+    platforms = platforms.all;
+  };
+}

packages/navidrome-mcp/package.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  buildNpmPackage,
+  fetchzip,
+}:
+
+buildNpmPackage rec {
+  pname = "navidrome-mcp";
+  version = "2.2.0";
+
+  src = fetchzip {
+    url = "https://registry.npmjs.org/${pname}/-/${pname}-${version}.tgz";
+    hash = "sha256-1wZyM0GJUrQfzBK1tWqqIcVk90KUv/9wt2ZpRobQp/A=";
+  };
+
+  npmDepsHash = "sha256-58OZ4qVfeN+0LVzcSJQHQqiY66gPSGWI6ht/4fMp0oQ=";
+
+  postPatch = ''
+    cp ${./package-lock.json} package-lock.json
+  '';
+
+  # dist/ is already built in the npm tarball
+  dontNpmBuild = true;
+
+  meta = with lib; {
+    description = "MCP server for Navidrome - search music library, playlists, radio stations, and playback control";
+    homepage = "https://github.com/Blakeem/Navidrome-MCP";
+    license = licenses.mit;
+    mainProgram = "navidrome-mcp";
+    platforms = platforms.all;
+  };
+}

packages/ovhcloud-mcp/package.nix

@@ -0,0 +1,34 @@
+{
+  lib,
+  buildNpmPackage,
+  fetchFromGitHub,
+}:
+
+buildNpmPackage rec {
+  pname = "ovhcloud-mcp";
+  version = "2.0.1";
+
+  src = fetchFromGitHub {
+    owner = "hlebtkachenko";
+    repo = "ovhcloud-mcp";
+    rev = "ccadc85bd4aab35434a24732bc77ef2b6f100b4c";
+    hash = "sha256-FYJSKOU/lCutGCUJhaAtKWBLJOBUyWvdkSnMWbxwhI4=";
+  };
+
+  npmDepsHash = "sha256-myeqksb3mjJ1GJej/4D7iuyOOTsGJBdkka9zUpH+flY=";
+
+  postPatch = ''
+    cp ${./package-lock.json} package-lock.json
+  '';
+
+  # dist/ is NOT committed to the repo; buildNpmPackage runs "npm run build"
+  # (tsc) by default, which emits dist/index.js.
+
+  meta = with lib; {
+    description = "OVHcloud MCP server - VPS, domains, DNS, billing, SSH, and API explorer";
+    homepage = "https://github.com/hlebtkachenko/ovhcloud-mcp";
+    license = licenses.mit;
+    mainProgram = "ovhcloud-mcp";
+    platforms = platforms.all;
+  };
+}

packages/slskd-mcp/package.nix

@@ -0,0 +1,49 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  makeWrapper,
+  python3,
+}:
+
+let
+  python = python3.withPackages (
+    ps: with ps; [
+      fastmcp
+      httpx
+    ]
+  );
+in
+stdenv.mkDerivation rec {
+  pname = "slskd-mcp";
+  version = "0.1.0-unstable-2026-07-28";
+
+  src = fetchFromGitHub {
+    owner = "abl030";
+    repo = "slskd-mcp";
+    rev = "08e4373f41fddcceff8ea3240323e0c6258a373e";
+    hash = "sha256-ELUoAOOWmNoxoTjPxxAY00exN56lngSPs4wtn/GadQU=";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  # generated/server.py is tracked in git; no build step needed.
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out/lib/slskd-mcp $out/bin
+    cp -r $src/generated $out/lib/slskd-mcp/
+    makeWrapper ${python}/bin/fastmcp $out/bin/slskd-mcp \
+      --add-flags "run $out/lib/slskd-mcp/generated/server.py"
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "MCP server for slskd (Soulseek daemon) - search, download, browse peers, private messages";
+    homepage = "https://github.com/abl030/slskd-mcp";
+    license = licenses.mit;
+    mainProgram = "slskd-mcp";
+    platforms = platforms.all;
+  };
+}