ClearBounce Email Verification MCP Server

by clearbounce Your server? Claim it

answering

ClearBounce Email Verification is answering right now. Last checked 1 min ago. It exposes 5 tools.

Verify email addresses in real time and find business email addresses with live mailbox checks.

Uptime history 19 days of history · worst day 99%

19 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

185 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check ClearBounce Email Verification every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add email-verification --transport http https://clearbounce.net/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "email-verification": {
      "url": "https://clearbounce.net/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.email-verification]
url = "https://clearbounce.net/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "email-verification": {
      "url": "https://clearbounce.net/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "email-verification": {
      "url": "https://clearbounce.net/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

verify

verify_bulk

Verify a list of email addresses (2 to 10,000) as one bulk job using the full ClearBounce bulk pipeline — per-domain caching and greylist retries give better accuracy than verifying one by one. Costs 1 credit per unique address; duplicates are removed for free. Returns a jobId immediately (the job runs in the background, roughly 1-10 minutes depending on size). Use check_bulk_status with the jobId to get progress and the final summary. Before starting a large list, confirm with the user that spending that many credits is intended.

verify_email

Verify a single email address in real time with a live mailbox check. Returns status (deliverable, undeliverable, risky, unknown), a sub-status reason, a 0-100 quality score, and detailed checks (syntax, MX records, disposable, role-based, catch-all, typo detection). Costs 1 credit per call.

bulk

check_bulk_status

Check the progress of a bulk verification job started with verify_bulk. Free. Returns status (pending, processing, completed, failed), percent progress, and — once completed — the summary counts (deliverable, undeliverable, risky, unknown, catch-all). Report the summary to the user instead of listing individual addresses; the full result file can be downloaded from the ClearBounce dashboard.

credits

check_credits

Return the remaining verification credit balance for the account that owns the API key. Free.

find_email

Find a person's business email address from their full name and company domain. Returns candidate addresses with confidence scores, based on published sources and common company address patterns. Finding is free, but candidates are pattern-based guesses until verified. After showing the candidates, tell the user that confirming deliverability costs 1 credit per candidate checked, and ask before verifying. With approval, call verify_email on candidates one at a time starting from the highest confidence, and stop at the first deliverable result.

Endpoints

URL	Transport	State	Latency	Checked
https://clearbounce.net/mcp	streamable-http	answering	188 ms	1 min ago

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ClearBounce Email Verification — questions

Answers built from our own checks of this server.

What can ClearBounce Email Verification do?

It exposes 5 tools, read directly from the server on our last check. Among them: check_bulk_status, check_credits, find_email, verify_bulk, verify_email. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is ClearBounce Email Verification working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 185 ms. The bar chart above shows every period we have measured.

How do I connect ClearBounce Email Verification?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does ClearBounce Email Verification need an API key?

No. ClearBounce Email Verification completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is ClearBounce Email Verification?

It answers our handshake in 185 ms on average, which is faster than 75% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.