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MailerCheck MCP by usefulapi

MCP server · hosted · v1.0.1 · io.usefulapi/mailercheck
Online · tested 1h agoNEW · 2h agoSeen in the registry 1h ago

Check MailerCheck credits and lists, and run confirmed asynchronous email verification.

Website ↗Source code ↗How to connect ↓

What it does

MailerCheck MCP by usefulapi is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

No capability identified yet from its description.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES
Local installNO
Version1.0.1
PriceNot in the registry
First seen29 Oct 2026
Last checked1h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)

Hosted endpoint

  • https://mailercheck.usefulapi.io/mcp streamable-http

In Claude Code: claude mcp add --transport http mailercheck-mcp-by-usefulapi https://mailercheck.usefulapi.io/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "mailercheck-mcp-by-usefulapi": {
      "url": "https://mailercheck.usefulapi.io/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 1h ago

ONLINE MailerCheck MCP by usefulapi answered an MCP connection on 29 Oct 2026 and introduced itself as mailercheck-mcp 1.0.1 (MCP protocol 2025-06-18).

6 tools offered to AI assistants

  • mailercheck_account · Read the connected MailerCheck account name, ID and credit balance. Does not verify emails or spend verification credits.
  • mailercheck_credits · Read the available MailerCheck verification credit balance without starting verification.
  • mailercheck_lists · Read one bounded page of list summaries, processing status and statistics. Does not create, verify or delete lists. Pagination stays on the MailerCheck API; no response links are followed.
  • mailercheck_get_list · Read one existing list's verification status and aggregate result counts. Does not start or restart verification.
  • mailercheck_verify_email · Submit one email for asynchronous verification. Spends MailerCheck credits and requires confirm:true. This call is never retried. Read the returned verification ID with mailercheck_verification_result; wait between polls. If the response is
  • mailercheck_verification_result · Read the status and result of a previously submitted asynchronous email check. Does not start new verification. Call once and wait before polling again; no automatic polling is performed.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Facts & evidence

Each fact shows where it was seen and when.
FactValueEvidenceSourceLast confirmed
Hosted endpointhttps://mailercheck.usefulapi.io/mcpDECLAREDSRC-001 Official MCP Registry1h ago
Local install (package)noDECLAREDSRC-001 Official MCP Registry1h ago
Remote access (hosted)yesDECLAREDSRC-001 Official MCP Registry1h ago
Websitehttps://usefulapi.io/mailercheck/DECLAREDSRC-001 Official MCP Registry1h ago
Repositoryhttps://github.com/m190/usefulapi-mcpDECLAREDSRC-001 Official MCP Registry1h ago
Registry statusactiveDECLAREDSRC-001 Official MCP Registry1h ago
Version1.0.1DECLAREDSRC-001 Official MCP Registry1h ago
MCP serveryesDECLAREDSRC-001 Official MCP Registry1h ago

Change history

  • NEW29 Oct 2026
    first seen in the index

Is this page accurate?

Flag it and our robot re-checks the official source. Reports never change a score.

Do you run MailerCheck MCP by usefulapi? Know when it stops answering

For publishers · optional

Its hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.

Monitor MailerCheck MCP by usefulapiLaunch offer $39.99 once, for life instead of $9.99/month · All plans

Monitoring never changes a score or a rank.

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Questions about MailerCheck MCP by usefulapi

How do I connect MailerCheck MCP by usefulapi?

Use the hosted endpoint https://mailercheck.usefulapi.io/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does MailerCheck MCP by usefulapi offer?

When Electra Index connected on 29 Oct 2026, it listed 6 tools: mailercheck_account, mailercheck_credits, mailercheck_lists, mailercheck_get_list, mailercheck_verify_email, mailercheck_verification_result. The full list is in "Live check" above.

Is MailerCheck MCP by usefulapi online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.