Listclean

@Listclean verify the email address sarah.chen@example-startup.io and tell me if it's deliverable

The email sarah.chen@example-startup.io has been verified. Status: deliverable. The domain exists, the mailbox is valid, and this is not a disposable address. SMTP verification confirms the address can receive mail. Risk score: low. This example illustrates a typical single-verification response; actual results include additional metadata like catch-all detection and role-based address flags.

This example shows single-email verification, Listclean's core capability. Each verification consumes one credit from your account balance. Best used for real-time validation during sign-up flows or contact form submissions. Check remaining credits first if processing high volumes.

@Listclean I have 847 email addresses from our last conference. Create a bulk verification list so I can upload them for batch processing.

A CSV file has been generated with your 847 email addresses formatted for Listclean's bulk verification system. The file includes the required column headers and is ready for upload through the Listclean dashboard. This example demonstrates the file-preparation step; you'll need to manually upload the CSV to trigger the actual verification job, which processes asynchronously and emails results when complete.

This example highlights the bulk workflow's first step: generating a properly formatted CSV. The MCP creates the file but does not upload it—you must complete that step in the Listclean web interface. Bulk verification is more cost-effective than individual calls for large lists but requires manual dashboard interaction to initiate processing.

@Listclean check how many verification credits I have left, then tell me if I can verify 200 more addresses this week

Your account currently has 1,450 verification credits remaining. At one credit per email, you can verify 200 addresses with 1,250 credits left over. This example shows a typical credit-check response; actual balances depend on your plan tier and recent usage. The MCP retrieves real-time credit data, allowing you to gate verification workflows based on available capacity.

This example pairs credit-checking with AI reasoning to answer a planning question. Useful before bulk operations to avoid mid-job credit exhaustion. Credit counts refresh based on your subscription plan's monthly or pay-as-you-go structure. The MCP reads credit balance but cannot purchase additional credits—that requires account-level action.

When to verify emails before a webinar send

A 3-person marketing team runs monthly webinars and collects 200-400 registrations per event. They use Listclean's verify-email tool in a pre-send workflow: after the registration form closes, they bulk-verify the list to catch typos and disposable addresses before the reminder sequence starts. This works when the list is under 500 contacts and the team has credits budgeted per event. If you're running weekly events or collecting thousands of signups, the 4-tool scope here gets repetitive—you'd want a native integration in your email platform instead. For monthly cadence and small batches, Listclean keeps your sender reputation clean without adding another SaaS seat.

Cleaning a stale contact database once per quarter

A 6-person sales team inherits a CRM with 8,000 contacts, half of which haven't been touched in two years. They use Listclean's bulk-verification tool to export a CSV, verify deliverability, and flag bounces before re-engagement campaigns. The get-remaining-credits tool helps them pace the audit across billing cycles. This scenario works if you're doing periodic cleanups (quarterly or annually) rather than real-time validation. If you're verifying every inbound lead at capture, you need a webhook or API integration your form tool already supports—this MCP is overkill. For one-time or scheduled audits where a human reviews the results before deleting records, Listclean's CSV workflow fits the bill.

Why this MCP doesn't fit high-volume support queues

A 10-person support team gets 300 tickets daily, many from throwaway emails or typos. They consider using Listclean to auto-verify sender addresses and deprioritize undeliverable tickets. This is the wrong tool. The 4-tool scope requires manual or scripted calls per ticket, and the API-key auth means you're burning credits on every check—expensive at scale. If you're triaging more than 50 tickets a day, you want email verification baked into your helpdesk (Zendesk, Intercom) or a middleware that runs verification before ticket creation. Listclean works for batch audits, not real-time filtering. Save it for the quarterly contact-list cleanup, not the daily ticket flood.