About MailerCheck MCP by usefulapi
MailerCheck MCP by usefulapi connects MCP clients to MailerCheck for account and credit checks, list review, and email verification. Verification runs asynchronously and requires confirmation through the write tool.
Key features
- 01Read account details
- 02Check available credits
- 03List verification lists
- 04Start email verification
- 05Read verification results
Use cases
- 01Check available verification credits
- 02Review a verification list's status
- 03Start email verification and retrieve its result
MCP support
Exposes MailerCheck account, credit, list, and verification tools to MCP clients. The asynchronous verification tool is a write action; clients connect to the hosted endpoint and sign in through OAuth.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://mailercheck.usefulapi.io/mcpclaude mcp add --transport http io-usefulapi-mailercheck https://mailercheck.usefulapi.io/mcp{"mcpServers":{"io-usefulapi-mailercheck":{"type":"http","url":"https://mailercheck.usefulapi.io/mcp"}}}Open in Cursor{"servers":{"io-usefulapi-mailercheck":{"type":"http","url":"https://mailercheck.usefulapi.io/mcp"}}}Open in VS Code{"mcpServers":{"io-usefulapi-mailercheck":{"type":"http","url":"https://mailercheck.usefulapi.io/mcp"}}}{"mcpServers":{"io-usefulapi-mailercheck":{"serverUrl":"https://mailercheck.usefulapi.io/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
Details
From the project READMEMailerCheck MCP by usefulapi
https://mailercheck.usefulapi.io/mcp
Connect
- Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste
https://mailercheck.usefulapi.io/mcp. - Claude Code:
claude mcp add --transport http mailercheck https://mailercheck.usefulapi.io/mcp, then run/mcpto log in. - VS Code: Add to VS Code.
- Cursor and other clients: add the URL as a remote MCP server:
{
"mcpServers": {
"mailercheck": {
"url": "https://mailercheck.usefulapi.io/mcp"
}
}
}
Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your MailerCheck credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/mailercheck/
Connect your own MailerCheck credentials through the hosted sign-in page.
Tools
| Tool | Type | What it does |
|---|---|---|
mailercheck_account | read | Read MailerCheck account |
mailercheck_credits | read | Check MailerCheck credits |
mailercheck_lists | read | List MailerCheck verification lists |
mailercheck_get_list | read | Read MailerCheck list status |
mailercheck_verify_email | write | Start MailerCheck email verification |
mailercheck_verification_result | read | Read MailerCheck email verification result |
mailercheck_usage_status | meta | Usage status (free-tier meter) |
mailercheck_request_feature | meta | Request a missing feature |
mailercheck_upgrade | meta | Upgrade to Pro (unlimited*) |
mailercheck_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
Pricing
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro (per user) | $9/mo or $90/yr (2 months free) | Unlimited* |
*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this server only. Subscribe with mailercheck_upgrade (it returns a Stripe Checkout link). Cancel any time with mailercheck_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running mailercheck_upgrade before then undoes the cancel. Or write to [email protected].
License
MIT
Comments
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