Email Validator is answering right now. Last checked 9 min ago. It exposes 1 tools.
Validates email syntax and MX records. x402 payment required (testnet USDC).
What changed 1
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 5 September 2026. No other catalogue keeps this.
Nothing serious here today
Today is the operative word: we check Email Validator every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.
claude mcp add email-validator --transport http https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcphttps://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp[mcp_servers.email-validator]
url = "https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp"{
"mcpServers": {
"email-validator": {
"url": "https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp"
}
}
}{
"servers": {
"email-validator": {
"type": "http",
"url": "https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp"
}
}
}This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.
Available tools 1
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
email_validator
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://faceted-napped-debtless.ngrok-free.dev/email-validator/mcp | streamable-http | needs auth | 139 ms | 9 min ago |
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Test any x402 paid URL without paying: 402, PAYMENT-REQUIRED, USDC, amounts, payTo, EIP-712, CORS.
USDC/x402 agent marketplace. Verified Base mainnet pilot, testnet and public enrollment.
Email Validator — questions
Answers built from our own checks of this server.