mailverdict MCP

Provides email intelligence capabilities including disposable email detection, role-account identification, free-provider classification, MX validation, and typo suggestions. It allows agents to check individual emails, domains, or batch requests to validate syntax and quality without requiring an API key.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by mailverdict

MCP endpoint (Streamable HTTP)

https://api.mailverdict.dev/mcp

Vendor documentation

What its tools do

2 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

2 of 2 have a description · 0 of 2 declare behavior hints · 2 of 2 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 6, 2026, 11:38 PM UTC
Passed Official MCP Registry namespace is tied to mailverdict.dev · Nov 6, 2026, 11:15 PM UTC
Passed Endpoint is on the registry namespace domain · Nov 6, 2026, 11:15 PM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Block burner or disposable emails at signup
Detect role accounts like info@ or admin@
Suggest corrections for probable email typos
Validate MX records for domain deliverability

Source and maintenance

Vendor evidenceRegistry 0.1.1

mcp-registry: dev.mailverdict/mailverdict@0.1.1 Source repository

Maintenance checked: Nov 6, 2026, 11:15 PM UTC

Protocol and capabilities

Server: mailverdict 0.1.1
MCP protocol negotiated in check: 2025-11-25
Tools: 2 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {}
}

Tools

2 advertised

check_email

Advertised by the server during the last successful anonymous check.

Check an email address: syntax, disposable/burner domain, role account, free provider, typo suggestion, MX records. Returns result (deliverable|undeliverable|risky|unknown), reason, score 0-100, and per-signal booleans.

check_email input schema

{
  "type": "object",
  "required": [
    "email"
  ],
  "properties": {
    "mx": {
      "type": "boolean",
      "description": "Look up MX records (default true)."
    },
    "email": {
      "type": "string",
      "description": "The email address to check."
    }
  }
}

check_domain

Advertised by the server during the last successful anonymous check.

Check a domain: disposable/burner list membership, free-provider status, typo suggestion, MX records.

check_domain input schema

{
  "type": "object",
  "required": [
    "domain"
  ],
  "properties": {
    "mx": {
      "type": "boolean",
      "description": "Look up MX records (default true)."
    },
    "domain": {
      "type": "string",
      "description": "The domain to check."
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 274 ms
95th percentile latency: 274 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 6, 2026, 11:38 PM UTC · probe · passed · 274 ms · metadata changed · 2 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http mailverdict-mcp https://api.mailverdict.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add mailverdict-mcp --url https://api.mailverdict.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable mailverdict-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "mailverdict-mcp": {
      "url": "https://api.mailverdict.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "mailverdict-mcp": {
      "type": "streamableHttp",
      "url": "https://api.mailverdict.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start mailverdict-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "mailverdict-mcp": {
      "type": "http",
      "url": "https://api.mailverdict.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http mailverdict-mcp https://api.mailverdict.dev/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://api.mailverdict.dev/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "mailverdict-mcp": {
      "serverUrl": "https://api.mailverdict.dev/mcp"
    }
  }
}

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Do you run mailverdict MCP?

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