ContactLint

com.contactlint由 contactlint.com 发布官方发布者v1.1.0更新于 Nov 1, 2026

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

已验证Streamable HTTP可网页运行沟通与协作商业与电商

概览

AI 生成的概览

ContactLint 用于校验电子邮箱地址和电话号码，支持单个或批量检查，让助手在保存或使用联系人数据前先做验证。

可以做什么
  • 检查单个邮箱地址：语法、通过 DNS-over-HTTPS 查询的 MX/A 记录、一次性域名、角色地址、免费邮箱服务商及拼写纠错建议
  • 一次调用检查最多 50 个邮箱地址，按原顺序返回每个地址的结果并附判定汇总
  • 解析并校验电话号码，返回有效性、号码类型、地区以及 E.164 和国内格式
适用场景
适合助手收集、清洗或存储联系人信息的场景，在写入 CRM、表单或邮件列表之前剔除格式错误、一次性或拼写有误的邮箱以及无效电话号码。
运行要求
需要 ContactLint API 密钥，通过 Authorization 请求头以 Bearer 令牌发送（本地 stdio 服务器则使用 CONTACTLINT_API_KEY 环境变量）。可使用托管的 Streamable HTTP 端点，或通过 npx/npm 运行本地 stdio 包。进行 DNS-over-HTTPS 查询需要网络访问。
安装前请注意
API 密钥是计费凭证：每校验一个地址或号码消耗一次检查，50 个地址的批量调用可能消耗 50 次检查，另有每月免费额度和付费检查包。校验不连接邮件服务器，因此无法确认邮箱是否真实存在，也无法识别 catch-all 域名。邮箱地址和电话号码会发送到 ContactLint 的服务器。

安装

在 SourceWeft 中

  1. 打开 控制台中的 ContactLint，将其添加到工作区。
  2. 连接 Authorization token 凭据。它们会被私密存储，绝不会在公开页面上展示。
  3. 为需要使用其工具的对话启用该服务。

Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。

交给智能体安装

把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。

阅读 https://sourceweft.com/mcp/com.contactlint%2Fcontactlint/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。

查看智能体所依据的安装指南

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。

{
  "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.

来源：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.

输入参数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.

输入参数emails必填

validate_phone

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

输入参数phone必填country

版本历史

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

评分

已满足适用检查项的 100%

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