MCP servers that ship as code — a repository or a package you install and run locally (usually over stdio). They have no hosted endpoint, so we cannot probe or grade them: instead each one shows its repository, install command, license, stars and when it was last updated.
Collected from GitHub repositories and npm, PyPI, Cargo, Go, Maven, NuGet and RubyGems packages tagged as MCP servers, the official MCP Registry, Docker's MCP catalog, ModelScope, Baidu MCP World, Cline and other public directories; one entry per repository. A server that also offers a hosted endpoint is listed under Remote instead. These entries are not counted in our reachability, verification or readiness statistics.
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Self-hosted, read-only MCP server that serves IMAP mail from a local notmuch index over authenticated HTTP
MIT ★ 20 -
MCP server for IMAP/SMTP mailboxes: read, search, organize, draft and send mail from an AI assistant. Passwords stay in the macOS Keychain and mail is never deleted.
npm MIT -
MCP server that gives an AI assistant access to IMAP/SMTP mailboxes: read, search, organize, draft and send. Passwords stay in the macOS Keychain, mail deletion is absent by design. macOS only.
MIT