mcphost: drop

Upstream marked the software as unmaintained on April 13th 2026 and
recommends moving to a different software instead
https://github.com/mark3labs/mcphost/commit/632cc196002275d42dbf93ad3f1241ff853deb80

doc/release-notes/rl-2611.section.md

@@ -20,6 +20,8 @@
 
 - `libgdata` has been removed, as it was archived upstream and relied on the insecure libsoup 2.4.
 
+- `mcphost` has been removed, as it was archived upstream and declared unmaintained.
+
 - `services.mysql` now sets `root@localhost` authentication to `auth_socket` when used with `mysql` or `percona-server`.
   Existing deployments will also be adjusted if possible. See the [security advisory GHSA-6qxx-6rg8-c4p8](https://github.com/NixOS/nixpkgs/security/advisories/GHSA-6qxx-6rg8-c4p8) for more information.
 

pkgs/by-name/mc/mcphost/package.nix

@@ -1,29 +0,0 @@
-{
-  lib,
-  buildGoModule,
-  fetchFromGitHub,
-}:
-
-buildGoModule (finalAttrs: {
-  pname = "mcphost";
-  version = "0.34.0";
-
-  src = fetchFromGitHub {
-    owner = "mark3labs";
-    repo = "mcphost";
-    tag = "v${finalAttrs.version}";
-    hash = "sha256-xqz6K0e/LSX77qpkmwmqgStPAfkkJdqKKDZOeYWnrRo=";
-  };
-
-  vendorHash = "sha256-mzrCIDMr1INzwqktZIc9m0SgynQC0FpyVlSlAba//sY=";
-
-  doCheck = false;
-
-  meta = {
-    description = "CLI host application that enables Large Language Models (LLMs) to interact with external tools through the Model Context Protocol (MCP)";
-    homepage = "https://github.com/mark3labs/mcphost";
-    license = lib.licenses.mit;
-    maintainers = [ ];
-    mainProgram = "mcphost";
-  };
-})

pkgs/top-level/aliases.nix

@@ -1493,6 +1493,7 @@ mapAliases {
   matrix-synapse-tools.synadm = throw "'matrix-synapse-tools.synadm' has been renamed to/replaced by 'synadm'"; # Converted to throw 2025-10-27
   mbedtls_2 = throw "'mbedtls_2' has been removed as it reached its end of life. Migrate to 'mbedtls'.";
   mcomix3 = throw "'mcomix3' has been renamed to/replaced by 'mcomix'"; # Converted to throw 2025-10-27
+  mcphost = throw "'mcphost' has been removed as it was marked discontinued upstream"; # Added 2026-07-08
   mdbook-alerts = throw "'mdbook-alerts' has been removed because it is deprecated and natively supported by mdbook since version 0.5.0"; # Added 2026-01-07
   mdbook-linkcheck = throw "'mdbook-linkcheck' has been removed and replaced by 'mdbook-linkcheck2' due to incompatibility with mdbook version 0.5.0+"; # Added 2026-03-03
   mdt = throw "'mdt' has been renamed to/replaced by 'md-tui'"; # Converted to throw 2025-10-27