# Mails.so MCP

Vendor: Mails.so  
Category: other  
Auth: API_KEY  
Composio slug: `mails_so`

Mails is an API service that provides powerful email validation capabilities to help maintain a clean and effective email list.

## Setup

1. Create or open a Switchy Space.
2. Open Integrations and connect Mails.so.
3. Authorise through api_key.
4. Teammates can now @-mention Mails.so tools in chat.

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Last verified: 2026-04-23T23:46:29.618Z  
Canonical URL: https://switchy.build/mcps/mails-so