# Mailvett: Email Validation API for AI Agents

> Mailvett: validate emails. MX, provider, disposable/role/free flags, typo fix, verdict.

- name: dev.workers.cybermax-tools.cybermax/mailvett
- version: 1.0.2
- connection class: R0 (autonomous)
- trust: 87/100 flags: duplicate-repo
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/dev.workers.cybermax-tools.cybermax%2Fmailvett
- tools: https://api.protogrid.dev/v1/servers/dev.workers.cybermax-tools.cybermax%2Fmailvett/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "mailvett": {
      "type": "http",
      "url": "https://mailvett.cybermaxtools.com/mcp?via=mcp-registry",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  }
}
```

Placeholders to fill: `${X_API_KEY}`.

## Trust

- hygiene: 60
- liveness: 97
- freshness: 100
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-92% +updated-10d-ago -duplicate-repo(34 names)
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 1 of 1 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 184 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 1, about 184 tokens to load them all
- tool set hash: 6cad0d1a692b339b6b2f861bf4859cac
- badge: [![protogrid quality](https://protogrid.dev/badge/dev.workers.cybermax-tools.cybermax/mailvett.svg)](https://protogrid.dev/servers/dev.workers.cybermax-tools.cybermax/mailvett)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://mailvett.cybermaxtools.com/mcp?via=mcp-registry (streamable-http, auth none, reachable true, uptime30d 0.92105263)

## Packages

_none_

## Tools (1)

- `validate_emails`: Check up to 10 email addresses: syntax, whether the domain exists and has mail servers (MX), mail provider, disposable, role account (info@, sales@), free provider, likely typo with a suggested fix, domain age, SPF and DMARC. Returns verdict (deliverable_likely/risky/undeliverable/invalid), score 0-100 and reason codes per address. Does not verify that the mailbox itself exists.