MailTester Ninja
Rank #160,619mcp.so/mailtester-api-examples/mailtester-ninja
MailTester Ninja checks email addresses in real time by talking to the recipient's mail server, without sending a message, and keeps nothing afterwards. Agents can use it to clean a list, validate a signup, or find a con
What you can do with MailTester Ninja
MailTester Ninja is a Model Context Protocol (MCP) server published by mailtester-ninja. It ranks #160,619 of 164,854 active servers on MCP Toplist, and its repository has 1 GitHub stars. MailTester Ninja is listed on mcp.so; no version information is available from the registries that list it or from its repository. It was first listed on Oct 29, 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 MailTester Ninja 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 MailTester Ninja
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 MailTester Ninja 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.
What changed, and when this was checked
- First listed
- Oct 29, 2026
- Version history
- Unavailable — no registry exposes versions and no release tags were found
- 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 31, 2026
- mcp.so ↗listed since Oct 30, 2026 · still listed
Do you maintain MailTester Ninja? to correct or enrich this profile.
Version information unavailable
The registry that lists this server does not expose version metadata, and no release tags were found on the linked repository. MCP Toplist cannot say how, or whether, this server is versioned.
Ranks ahead of 4,235 of 164,854 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%2Fmailtester-api-examples%2Fmailtester-ninja)<a href="https://mcptoplist.com/server/mcp.so%2Fmailtester-api-examples%2Fmailtester-ninja"><img src="https://mcptoplist.com/badge/mcp.so%2Fmailtester-api-examples%2Fmailtester-ninja.svg" alt="MCP Toplist: #160,619 of 164,854" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Frequently asked questions
- Who maintains MailTester Ninja?
- MailTester Ninja is maintained by mailtester-ninja, which publishes 1 MCP server tracked on MCP Toplist.
- Is MailTester Ninja listed on the Official MCP Registry?
- MailTester Ninja is not on the Official MCP Registry. It is listed on mcp.so.
- How many versions does MailTester Ninja have?
- Version information is unavailable for MailTester Ninja: no registry that lists it exposes version metadata, and no release tags were found on its repository.
- Where can I find the source code for MailTester Ninja?
- The source code for MailTester Ninja is hosted at github.com/mailtester-ninja/mailtester-api-examples.
Do you run this server?
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