Proton MCP
Rank #8,572mcp.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
What you can do with Proton MCP
Proton MCP is a Model Context Protocol (MCP) server published by just-an-oldsalt. It ranks #8,572 of 144,396 active servers 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.
Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.
What Proton MCP can and cannot do
Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.
What you need before using Proton MCP
No registry MCP Toplist tracks declares this server’s credentials or configuration, and it has no public endpoint to probe. Check the repository README before installing.
No runtime, credential or payment requirements are recorded for this server beyond the declaration above.
Connect Proton MCP and confirm it works
Install configuration unavailable. No registry publishes a machine-readable install config for this server — follow the repository README.
After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.
When to choose another server
No task-specific alternatives are catalogued for Proton MCPyet; the list above is its publisher's other servers.
What changed, and when this was checked
- First listed
- May 23, 2026
- Latest release tag
- Jul 24, 2026
- Version history
- 5 release tags tracked (below)
- Requirements evidence
- None — no registry declares requirements and there is no public endpoint to probe
- Profile checked
- Not yet — purpose, capabilities and requirements above come from registry data only
- Ranking data as of
- Oct 16, 2026
- mcp.so ↗listed since Aug 26, 2026 · still listed
Do you maintain Proton MCP? to correct or enrich this profile.
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 |
Ranks ahead of 135,824 of 144,396 servers on MCP Toplist.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](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 144,396" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
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.
Do you run this server?
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