Emaillistchecker.io Email Verification

io.emaillistcheckerv1.0.1更新於 Oct 9, 2026

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

已驗證Streamable HTTP可網頁執行Business & CommerceCommunication & Collaboration

概覽

AI 產生的概覽

讓助理驗證電子郵件地址能否收信，回傳有效、無效、有風險或未知的判定結果。

功能
這是一個託管式遠端 MCP 伺服器，用於電子郵件驗證。工具包括：verify_email 驗證單一地址，verify_batch 每次最多驗證 25 個地址，get_batch_status、list_lists 和 get_list 用來追蹤已儲存的驗證清單，explain_result 以白話說明判定並給出寄送建議，estimate_cost 和 get_credit_balance 可在執行前查看額度。判定結果分為有效、無效、有風險和未知，依據 MX、SMTP、catch-all 和一次性信箱等檢查。
適用情境
適合在寄信給郵件清單或註冊地址之前使用，過濾掉無法投遞、catch-all、角色或一次性地址。對於收集或清理電子郵件地址、並希望在動作前取得寄送建議的助理很有用。
執行需求
遠端 Streamable HTTP 端點，無需安裝。API 金鑰透過 Authorization 標頭以 Bearer 形式傳送。可免帳號透過 get_api_key 工具或註冊端點取得免費金鑰；每天 25 次驗證，30 天後過期。需要能連線至該託管端點的網路。
安裝前請注意
Authorization 標頭攜帶金鑰，金鑰只顯示一次，請妥善保存。驗證會把電子郵件地址傳送給第三方服務。免費金鑰每天限 25 次驗證、每分鐘 10 次請求、同一金鑰同時只能有一個請求，且有共用的每日容量，用盡時回傳 HTTP 429。批次驗證每個地址消耗一個額度。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 Emaillistchecker.io Email Verification，將其新增到工作區。
  2. 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。

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "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.

來源：README.md，提交 af88ad3

工具

0
工具後設資料尚未被收錄。

版本歷史

1
  1. v1.0.1最新Oct 9, 2026