# EmailListChecker (emaillistchecker.io)

Verifies email addresses against live mail servers and flags catch-all, disposable, role and spam-trap addresses, in bulk or via API.

- Atlas card: https://inite.ai/en/atlas/emaillistchecker.io
- Site: https://emaillistchecker.io
- For: Marketing, sales and lead-generation teams cleaning email lists before sending campaigns or cold outreach
- Categories: security
- Use 0/100 · alive 100/100

## Used for

- Verify a contact list before sending a campaign
- Filter signup addresses before they enter your database
- Export deliverable addresses back to Mailchimp or HubSpot

## Price

- from 20 USD/one-time, free plan (read 2026-10-19 on https://emaillistchecker.io/pricing)

## For developers

- API docs: https://platform.emaillistchecker.io/auth/login
- MCP server: io.emaillistchecker/email-verification (namespace; open on 2026-10-19, 9 tools)
- Status page: https://emaillistchecker.io/status
- Read 2026-10-19

## MCP server, measured daily

Server: https://platform.emaillistchecker.io/mcp, checked every day since 2026-10-19 (2 checks).

- Answered: measuring, 2 daily checks so far
- Median first answer: 652 ms
- Sign-in: none
- Context its tool definitions take: about 864 tokens (9 tools)
- Tool definitions: B, 81/100
- Failing "params_described": 1 of 9 tools
- Failing "annotations": 9 of 9 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: gdpr
- Training on your data: no (https://emaillistchecker.io/legal/privacy)
- Read 2026-10-19

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Source: INITE Atlas, https://inite.ai/en/atlas/emaillistchecker.io. JSON: https://inite.ai/api/atlas/emaillistchecker.io. MCP: https://inite.ai/api/mcp (atlas_lookup).