ClearBounce Email Verification

ClearBounce lets your AI assistant work with live email data.

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • 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 detaile
  • 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 pa
  • Check Credits: Return the remaining verification credit balance for the account that owns the API key. Free.

What data it sees

Do you need an account

No: the server works without sign-in

ClearBounce lets your AI assistant work with live email data.

Ask it whether an address is safe to email and it runs a full verification — syntax, MX records, a live mailbox check, disposable and role-account detection, typo rescue and risk scoring — returning a clear status (deliverable, undeliverable, risky, unknown) and a 0-100 quality score. Ask it to find someone's business email from a name and company domain, and it returns ranked candidates you can verify one at a time. Check your remaining credit balance in the same conversation.

Verification costs 1 credit per address, finding candidates is free, and new accounts start with 100 free credits — no card required. Sign up at https://clearbounce.net

How to connect

How to connect ClearBounce Email Verification to Claude

The server address to paste into Claude settings:

https://email-verification--clearbounce.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect ClearBounce Email Verification to ChatGPT

The server address to paste into ChatGPT settings:

https://email-verification--clearbounce.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect ClearBounce Email Verification to Cursor

The server address to paste into Cursor settings:

https://email-verification--clearbounce.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (3)

Raw names from tools/list. Only developers need these.

verify_emailVerify 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.
find_emailFind 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.
check_creditsReturn the remaining verification credit balance for the account that owns the API key. Free.