Proton MCP
Rank #7,655mcp.so/proto-mcp/just-an-oldsalt
29 MCP tools across reads (mail_list, mail_search, mail_read, labels_list, …) and writes (mail_send, mail_reply, mail_move, labels_create, mail_draft_*, …). Every write tool is gated by a YAML policy engine + Touch ID approval; every tool call writes a redacted row to a local aud
Proton MCP is a Model Context Protocol (MCP) server published by just-an-oldsalt. It ranks #7,655 of 115,591 servers tracked on MCP Toplist, and its repository has 4 GitHub stars. Proton MCP is listed on mcp.so, with 5 release tags tracked from its GitHub repository. It was first listed on May 23, 2026 and most recently updated on Jul 24, 2026.
Ranks ahead of 107,936 of 115,591 servers on MCP Toplist.
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[](https://mcptoplist.com/server/mcp.so%2Fproto-mcp%2Fjust-an-oldsalt)<a href="https://mcptoplist.com/server/mcp.so%2Fproto-mcp%2Fjust-an-oldsalt"><img src="https://mcptoplist.com/badge/mcp.so%2Fproto-mcp%2Fjust-an-oldsalt.svg" alt="MCP Toplist: Top 10% of 115,591" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 1 registry
just-an-oldsalt
Other servers by just-an-oldsalt
View all just-an-oldsalt servers →GitHub releases (5)
No registry surfaces explicit version metadata for this server. The list below shows release tags from the linked GitHub repository.
| Version | Published |
|---|---|
| v1.1.0 | Jul 24, 2026 |
| v1.0.2 | Jun 27, 2026 |
| v1.0.0 | Jun 10, 2026 |
| 0.09 | May 24, 2026 |
| v1.0.0-alpha | May 23, 2026 |
Frequently asked questions
- Who maintains Proton MCP?
- Proton MCP is maintained by just-an-oldsalt, which publishes 2 MCP servers (6 total versions) tracked on MCP Toplist.
- Is Proton MCP listed on the Official MCP Registry?
- Proton MCP is not on the Official MCP Registry. It is listed on mcp.so.
- How many versions does Proton MCP have?
- No registry surfaces explicit version metadata for Proton MCP; MCP Toplist tracks 5 release tags from its GitHub repository, most recently published on Jul 24, 2026.
- Where can I find the source code for Proton MCP?
- The source code for Proton MCP is hosted at github.com/just-an-oldsalt/proto-mcp.