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NoBounce Email Validation

by notprathap · remote · no sign-in to list tools · v1.0.0 · published by GitHub user notprathap

Real-time single and bulk email validation (syntax, MX, 5,000+ disposable domains, SMTP).

Read only
CompareRegistry entry

2 tools: 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http nobounce https://nobounceapi.com/mcp --header 'X-API-Key: <your-x-api-key>'

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

2 tools

Only reads 2Claude Code: allow
  • validate_emailValidate a single email address in real time using NoBounce API.No findings

    Why it is in this group

    • The name "validate_email" says "validate": a word for reading.
    Description, as the server wrote it
    Validate a single email address in real time using NoBounce API. Checks RFC 5322 syntax, DNS MX records, 5,000+ disposable providers, role accounts, free webmail providers, typo suggestions, and optional SMTP handshake.
  • validate_emails_bulkValidate a batch of up to 1,000 email addresses in a single call using NoBounce API.No findings

    Why it is in this group

    • The name "validate_emails_bulk" says "validate": a word for reading.
    Description, as the server wrote it
    Validate a batch of up to 1,000 email addresses in a single call using NoBounce API. Returns per-email validation results plus summary counts (valid, invalid, disposable, catch_all, unknown).

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http nobounce https://nobounceapi.com/mcp --header 'X-API-Key: <your-x-api-key>'

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__nobounce__validate_email",
      "mcp__nobounce__validate_emails_bulk"
    ],
    "ask": [],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as nobounce. Review it before you use it.