# B2B Email & Domain Scorer

> Lead email decisions: keep / fix typo / review / drop, plus a ready-to-send list. Paid: RapidAPI

- name: dev.workers.mohamed-bahaa53000.email-scorer/b2b-email-domain-scorer
- version: 1.2.1
- connection class: R0 (autonomous)
- trust: 96/100
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/dev.workers.mohamed-bahaa53000.email-scorer%2Fb2b-email-domain-scorer
- tools: https://api.protogrid.dev/v1/servers/dev.workers.mohamed-bahaa53000.email-scorer%2Fb2b-email-domain-scorer/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "b2b-email-domain-scorer": {
      "type": "http",
      "url": "https://email-scorer.mohamed-bahaa53000.workers.dev/demo/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-100% +updated-2d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### 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`: 2 of 2 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 340 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

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

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 2 of the 7 days needed

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

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

- tools: 2, about 340 tokens to load them all
- tool set hash: afc4e6713d3037f3d2b8c1fb965aaeab
- tools last changed: 2026-10-18T20:00:33.389Z
- badge: [![protogrid quality](https://protogrid.dev/badge/dev.workers.mohamed-bahaa53000.email-scorer/b2b-email-domain-scorer.svg)](https://protogrid.dev/servers/dev.workers.mohamed-bahaa53000.email-scorer/b2b-email-domain-scorer)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-18 `score_email` changed (description)
  - before: Classify one email for B2B lead quality: verdict business / free / role / disposable / risky / invalid / unknown, a 0-100 score, reasons, MX + mail provider, typo suggestion (gmial.com -> gmail.com). Set deep=true to add SPF/DMARC checks. No mail is sent.
  - after: Decide what to do with one lead email: action keep / fix (with the corrected address in send_to) / review / drop, plus a plain-English action_reason. Also returns verdict business / free / role / disposable / risky / invalid / unknown, a 0-100 score, reasons, MX + mail provider, typo suggestion (gmial.com -> gmail.com). Set deep=true to add SPF/DMARC checks. No mail is sent.

Full history: https://api.protogrid.dev/v1/servers/dev.workers.mohamed-bahaa53000.email-scorer%2Fb2b-email-domain-scorer/changes

## Remotes

- https://email-scorer.mohamed-bahaa53000.workers.dev/demo/mcp (streamable-http, auth none, reachable true, uptime30d 1)
- https://b2b-email-domain-scorer.p.rapidapi.com/mcp (streamable-http, auth api_key ${X_RAPIDAPI_KEY}, reachable true, uptime30d 1)

## Packages

_none_

## Tools (2)

- `score_domain`: Check a company domain (or URL / email): MX records, mail provider (Google Workspace, Microsoft 365, ...), free/disposable flags, and SPF/DMARC. Useful before outreach or when qualifying a lead's company.
- `score_email`: Decide what to do with one lead email: action keep / fix (with the corrected address in send_to) / review / drop, plus a plain-English action_reason. Also returns verdict business / free / role / disposable / risky / invalid / unknown, a 0-100 score, reasons, MX + mail provider, typo suggestion (gmial.com -> gmail.com). Set deep=true to add SPF/DMARC checks. No mail is sent.