MailboxValidator MCP Server
Rank #63,922io.github.MailboxValidator/mcp-mailboxvalidator
Email validation MCP server using the MailboxValidator API. It can validate email addresses.
MailboxValidator MCP Server is a Model Context Protocol (MCP) server published by mailboxvalidator. It ranks #63,922 of 137,875 servers tracked on MCP Toplist, and its repository has 1 GitHub stars. MailboxValidator MCP Server is listed across 4 registries — Official MCP, Glama, PulseMCP and mcp.so, with 1 tracked version. It was first listed on Apr 9, 2026 and most recently updated on May 28, 2026.
Ranks ahead of 73,953 of 137,875 servers on MCP Toplist.
Use MailboxValidator MCP Server
Requires user-supplied configuration before first use — typically an API key, token or connection string set via environment variables.
claude mcp add mcp-mailboxvalidator -e "MAILBOXVALIDATOR_API_KEY=<your MAILBOXVALIDATOR_API_KEY>" -- npx -y mcp-mailboxvalidatorReplace each placeholder with your own value before saving.
[mcp_servers.mcp-mailboxvalidator]
command = "npx"
args = ["-y", "mcp-mailboxvalidator"]
[mcp_servers.mcp-mailboxvalidator.env]
MAILBOXVALIDATOR_API_KEY = "<your MAILBOXVALIDATOR_API_KEY>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"mcp-mailboxvalidator": {
"command": "npx",
"args": [
"-y",
"mcp-mailboxvalidator"
],
"env": {
"MAILBOXVALIDATOR_API_KEY": "<your MAILBOXVALIDATOR_API_KEY>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"mcp-mailboxvalidator": {
"command": "npx",
"args": [
"-y",
"mcp-mailboxvalidator"
],
"env": {
"MAILBOXVALIDATOR_API_KEY": "<your MAILBOXVALIDATOR_API_KEY>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"mcp-mailboxvalidator": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mcp-mailboxvalidator"
],
"env": {
"MAILBOXVALIDATOR_API_KEY": "<your MAILBOXVALIDATOR_API_KEY>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"mcp-mailboxvalidator": {
"command": "npx",
"args": [
"-y",
"mcp-mailboxvalidator"
],
"env": {
"MAILBOXVALIDATOR_API_KEY": "<your MAILBOXVALIDATOR_API_KEY>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"mcp-mailboxvalidator": {
"command": "npx",
"args": [
"-y",
"mcp-mailboxvalidator"
],
"env": {
"MAILBOXVALIDATOR_API_KEY": "<your MAILBOXVALIDATOR_API_KEY>"
}
}
}
}Replace each placeholder with your own value before saving.
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/io.github.MailboxValidator%2Fmcp-mailboxvalidator)<a href="https://mcptoplist.com/server/io.github.MailboxValidator%2Fmcp-mailboxvalidator"><img src="https://mcptoplist.com/badge/io.github.MailboxValidator%2Fmcp-mailboxvalidator.svg" alt="MCP Toplist: Top 50% of 137,875" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 4 registries
mailboxvalidator
Available versions (1)
| Version | Published |
|---|---|
| 1.0.0 | May 28, 2026 |
Frequently asked questions
- Who maintains MailboxValidator MCP Server?
- MailboxValidator MCP Server is maintained by mailboxvalidator, which publishes 1 MCP server (1 total version) tracked on MCP Toplist.
- Is MailboxValidator MCP Server listed on the Official MCP Registry?
- Yes — MailboxValidator MCP Server is listed on the Official MCP Registry, alongside Glama, PulseMCP and mcp.so.
- How many versions does MailboxValidator MCP Server have?
- MCP Toplist tracks 1 version of MailboxValidator MCP Server, most recently published on May 28, 2026.
- Where can I find the source code for MailboxValidator MCP Server?
- The source code for MailboxValidator MCP Server is hosted at github.com/mailboxvalidator/mcp-mailboxvalidator.
Do you run this server?
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