Server data from the Official MCP Registry
Real-time single and bulk email validation (syntax, MX, 5,000+ disposable domains, SMTP).
About
Real-time single and bulk email validation (syntax, MX, 5,000+ disposable domains, SMTP).
Remote endpoints: streamable-http: https://nobounceapi.com/mcp
Security Report
Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
Endpoint verified · Open access · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Found in Source Code
Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"io-github-notprathap-nobounce-mcp": {
"url": "https://nobounceapi.com/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
NoBounce Email Validation MCP Server (nobounce-mcp)
Official Model Context Protocol (MCP) server for NoBounce Email Validation & Bulk CSV Verification API.
Allows AI assistants (Claude Desktop, Cursor, Windsurf, Cline, etc.) to verify single email addresses and bulk email lists in real time:
- RFC 5322 Syntax & Domain Check
- DNS MX Record Lookup
- 5,000+ Disposable / Temp-Mail Provider Detection
- Role Account Detection (
support@,admin@,sales@) - Typo Suggestion (
gmial.com->gmail.com) - Optional Deep SMTP Mailbox Handshake
- Bulk Batch Validation (up to 1,000 emails per call with graceful partial-quota processing)
Get a Free API Key
Grab a free API key (100 free validations/month, no credit card required) at https://nobounceapi.com/register.
Tools Provided
validate_email— Validate a single email address (email, optionalsmtp_check).validate_emails_bulk— Validate an array of up to 1,000 email addresses (emails, optionalsmtp_check).
Quickstart (Claude Desktop / Cursor / Windsurf)
Add to your claude_desktop_config.json or .cursor/mcp.json:
{
"mcpServers": {
"nobounce": {
"command": "npx",
"args": ["-y", "github:notprathap/nobounce-mcp"],
"env": {
"NOBOUNCE_API_KEY": "nb-your-api-key-here"
}
}
}
}
License
MIT — https://nobounceapi.com
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