ContactLint

com.contactlint由 contactlint.com 發布官方發布者v1.1.0更新於 Nov 1, 2026

Validate emails (MX, disposable, role, typo) and phone numbers, singly or in batches, for AI agents.

已驗證Streamable HTTP可網頁執行溝通與協作商業與電商

概覽

AI 產生的概覽

ContactLint 用來驗證電子郵件地址與電話號碼，支援單筆或批次檢查，讓助理在儲存或使用聯絡資料前先行確認。

可以做什麼
  • 檢查單一電子郵件地址：語法、透過 DNS-over-HTTPS 查詢的 MX/A 記錄、一次性網域、角色地址、免費信箱服務商與拼字修正建議
  • 一次呼叫檢查最多 50 個電子郵件地址，依原順序回傳每個地址的結果並附上判定摘要
  • 解析並驗證電話號碼，回傳有效性、號碼類型、地區以及 E.164 與國內格式
適用情境
適合助理蒐集、清理或儲存聯絡資料的情境，在寫入 CRM、表單或寄送清單前排除格式錯誤、一次性或拼錯的電子郵件，以及無效的電話號碼。
執行需求
需要 ContactLint API 金鑰，透過 Authorization 標頭以 Bearer 權杖傳送（本機 stdio 伺服器則使用 CONTACTLINT_API_KEY 環境變數）。可使用託管的 Streamable HTTP 端點，或透過 npx/npm 執行本機 stdio 套件。進行 DNS-over-HTTPS 查詢需要網路連線。
安裝前請注意
API 金鑰是計費憑證：每驗證一個地址或號碼會消耗一次檢查，50 個地址的批次呼叫可能用掉 50 次檢查，另有每月免費額度與付費檢查包。驗證不會連線郵件伺服器，因此無法確認信箱是否真實存在，也無法辨識 catch-all 網域。電子郵件地址與電話號碼會傳送到 ContactLint 的伺服器。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 ContactLint，將其新增到工作區。
  2. 連接 Authorization token 憑證。它們會被私密儲存，絕不會在公開頁面上展示。
  3. 為需要使用其工具的對話啟用該服務。

Web executable，透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

交給代理程式安裝

把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式，或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南，先向你展示發布者、端點和登入方式，經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。

閱讀 https://sourceweft.com/mcp/com.contactlint%2Fcontactlint/install.md，並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前，先告訴我它的發布者、端點和登入方式，等我確認。不要把 API 金鑰寫進命令或我會提交的檔案；問我金鑰應從哪裡取得。

檢視代理程式所依據的安裝指南

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "mcpServers": {
    "contactlint": {
      "type": "http",
      "url": "https://contactlint.com/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

README

ContactLint MCP Server (contactlint-mcp)

ContactLint checks email addresses and phone numbers before your AI agent saves or uses them. You can run it as a local stdio MCP server (contactlint-mcp, reading CONTACTLINT_API_KEY from the environment) or connect directly to the hosted Streamable HTTP endpoint (https://contactlint.com/mcp).

Tools

ToolInputWhat it does
validate_emailemailChecks syntax, MX and A records over DNS-over-HTTPS, known disposable domains, role addresses (admin@, no-reply@) and free providers, and suggests a fix when the domain looks like a typo of a major provider (gmial.com).
validate_emailsemails (1 to 50 addresses)Same checks as validate_email for up to 50 addresses in one call. Returns one result per address in the same order plus a summary of verdicts.
validate_phonephone, optional country (ISO 3166-1 alpha-2 default region, for example US)Parses and validates a phone number: valid and possible flags, line type, region, E.164, national and international formats.

ContactLint does not connect to mail servers (no SMTP probing), so it cannot confirm that a mailbox exists or detect catch-all domains.

initialize and tools/list work without a key, so clients and directory scanners can read the tool list. tools/call requires a ContactLint API key (100 free checks per month, no card required).

Option 1: Local stdio MCP server (recommended for registries & desktop clients)

The local stdio server (bin/contactlint-mcp.mjs) reads your API key from the CONTACTLINT_API_KEY secret environment variable and forwards authenticated tool calls to https://contactlint.com/mcp.

Environment variables

VariableRequiredSecretDescription
CONTACTLINT_API_KEYYesYesYour ContactLint API key, sent as Authorization: Bearer <key>. Get a free key (100 checks/month, no card) at https://contactlint.com/signup
CONTACTLINT_MCP_URLNoNoOptional endpoint override (defaults to https://contactlint.com/mcp)

Client configuration (stdio via npx)

json
{  "mcpServers": {    "contactlint": {      "command": "npx",      "args": ["-y", "github:zksyncer/contactlint"],      "env": {        "CONTACTLINT_API_KEY": "YOUR_API_KEY"      }    }  }}

Or when installed locally (npm install -g github:zksyncer/contactlint or pnpm add contactlint-mcp):

json
{  "mcpServers": {    "contactlint": {      "command": "contactlint-mcp",      "env": {        "CONTACTLINT_API_KEY": "YOUR_API_KEY"      }    }  }}

Option 2: Hosted Streamable HTTP MCP server

If your MCP client supports custom HTTP headers on remote streamable-http servers, you can connect directly without installing anything:

json
{  "mcpServers": {    "contactlint": {      "type": "http",      "url": "https://contactlint.com/mcp",      "headers": {        "Authorization": "Bearer YOUR_API_KEY"      }    }  }}

Billing

  • One check per address or number checked. A validate_emails call with 20 addresses uses 20 checks.
  • Addresses whose DNS lookup fails come back unknown (dns_error) and are not billed.
  • If a key does not have enough checks for a whole validate_emails list, nothing is checked or billed.
  • 100 checks per month are free, no card needed.
  • Credit packs: 5,000 checks for $9, 25,000 for $35, 100,000 for $99.

Free tools

Free browser tools (disposable email checker, phone number validator, disposable domain list) are at https://contactlint.com/tools

License

MIT, see LICENSE.

來源：README.md，提交 52ea3ee

工具

3

validate_email

Check an email address: syntax, MX/A records via DNS-over-HTTPS, disposable domain, role address, free provider, typo suggestion for major providers. No SMTP probing. Uses 1 check.

輸入參數email必填

validate_emails

Check a list of up to 50 email addresses in one call, with the same checks as validate_email. Returns one result per address in the same order plus a summary of verdicts. Uses 1 check per address; addresses whose DNS lookup fails come back with reason dns_error and are not billed. If the key lacks checks for the whole list, nothing is checked or billed.

輸入參數emails必填

validate_phone

Parse and validate a phone number: valid, possible, type, region, E.164 and national formats. Uses 1 check.

輸入參數phone必填country

版本歷史

2
  1. v1.1.0最新Oct 18, 2026
  2. v1.0.0Oct 17, 2026

評分

已滿足適用檢查項的 100%

該評分衡量此收錄條目的完整程度，依據註冊中心條目、端點與公開來源計算得出。它不是對伺服器本身的評價，也不表示伺服器安全或目前可用：可連通性是帶日期的檢查結果，評分也不包含安裝量或使用者評價。

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