Emaillistchecker.io Email Verification

io.emaillistcheckerv1.0.1更新于 Oct 9, 2026

Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.

已验证Streamable HTTP可网页运行Business & CommerceCommunication & Collaboration

概览

AI 生成的概览

让助手验证电子邮件地址能否收信，返回有效、无效、有风险或未知的判定结果。

功能
这是一个托管式远程 MCP 服务器，用于电子邮件验证。工具包括：verify_email 验证单个地址，verify_batch 每次最多验证 25 个地址，get_batch_status、list_lists 和 get_list 用于跟踪已保存的验证列表，explain_result 用通俗语言解释判定并给出发送建议，estimate_cost 和 get_credit_balance 用于在运行前查看额度。判定结果分为有效、无效、有风险和未知，依据 MX、SMTP、catch-all 和一次性邮箱等检查。
适用场景
适合在向邮件列表或注册地址发信之前使用，过滤掉无法投递、catch-all、角色或一次性地址。对于收集或清理电子邮件地址、并希望在操作前获得发送建议的助手很有用。
运行要求
远程 Streamable HTTP 端点，无需安装。API 密钥通过 Authorization 请求头以 Bearer 形式发送。可无需账户通过 get_api_key 工具或注册端点获取免费密钥；每天 25 次验证，30 天后过期。需要能访问该托管端点的网络。
安装前请注意
Authorization 请求头携带密钥，密钥只显示一次，请妥善保存。验证会把电子邮件地址发送给第三方服务。免费密钥每天限 25 次验证、每分钟 10 次请求、同一密钥同时只能有一个请求，且有共享的每日容量，用尽时返回 HTTP 429。批量验证每个地址消耗一个额度。

安装

在 SourceWeft 中

  1. 打开 控制台中的 Emaillistchecker.io Email Verification，将其添加到工作区。
  2. 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。

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。

{
  "mcpServers": {
    "email-verification": {
      "type": "http",
      "url": "https://platform.emaillistchecker.io/mcp"
    }
  }
}

README

Emaillistchecker.io MCP server — email verification for AI agents

Remote Model Context Protocol server that tells an AI agent whether an email address can receive mail before anything is sent to it.

The server is hosted; there is nothing to install. This repository documents how to connect.

Get a key (no account needed)

Connect without a key and call the get_api_key tool, or:

bash
curl -X POST https://platform.emaillistchecker.io/agent-gateway/register \  -H 'Content-Type: application/json' \  -d '{"name":"my-agent","purpose":"verify signup emails"}'

The key is shown once. Each key gets 25 free verifications per day (unused credits do not roll over) and expires after 30 days; register again when it does. Send it as Authorization: Bearer <api_key>.

Connect

Claude Code

bash
claude mcp add --transport http emaillistchecker https://platform.emaillistchecker.io/mcp --header "Authorization: Bearer YOUR_KEY"

Claude Desktop / Cursor / VS Code (mcp.json-style config)

json
{  "mcpServers": {    "emaillistchecker": {      "type": "http",      "url": "https://platform.emaillistchecker.io/mcp",      "headers": { "Authorization": "Bearer YOUR_KEY" }    }  }}

Tools

ToolWhat it does
get_api_keyGet a free key (works without a key)
verify_emailVerify one address → valid, invalid, risky or unknown (1 credit)
verify_batchVerify up to 25 addresses per call, with per-address verdicts
get_batch_status, list_lists, get_listFollow saved verification lists
explain_resultExplain a verdict in plain English, with a send recommendation
estimate_cost, get_credit_balanceCheck credits before running

Verdicts

  • valid: the mailbox exists and accepts mail
  • invalid: the address or domain cannot receive mail
  • risky: accept-all (catch-all) domain, role or disposable address, or a Microsoft 365 address the mail server couldn't confirm
  • unknown: the receiving server gave no definitive answer

Limits

10 requests per minute per key, one request in flight per key, and a shared daily capacity for free agent keys (HTTP 429 until 00:00 UTC when it is used up). Inbox placement, blacklist monitoring and email finder need a full account at https://www.emaillistchecker.io.

REST API

The same key works on the REST API: POST https://platform.emaillistchecker.io/api/v1/verify, POST https://platform.emaillistchecker.io/api/v1/verify/batch, GET https://platform.emaillistchecker.io/api/v1/credits. See the OpenAPI description.

来源：README.md，提交 af88ad3

工具

0
工具元数据尚未被收录。

版本历史

1
  1. v1.0.1最新Oct 9, 2026