Mailshake MCP by usefulapi MCP Server

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answering

Mailshake MCP by usefulapi is answering right now. Last checked 11 min ago. It exposes 20 tools. Last commit 2 Nov 2026.

Read campaigns, replies and leads; pause or resume campaigns; close or reopen leads in Mailshake.

Uptime history 21 hours of history

21 hours agonow

100.0%

Uptime 24h

77 of 77 checks

Tools

read from the server

213 ms

Response time

average over 24h

Stars

last commit 2 Nov 2026

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 2 November 2026. No other catalogue keeps this.

2 Nov a tool changed version

Nothing serious here today

Today is the operative word: we check Mailshake MCP by usefulapi every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mailshake --transport http https://mailshake.usefulapi.io/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mailshake.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.mailshake]
url = "https://mailshake.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mailshake": {
      "url": "https://mailshake.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "mailshake": {
      "type": "http",
      "url": "https://mailshake.usefulapi.io/mcp"
    }
  }
}

Available tools 20

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

mailshake

mailshake_close_lead

Mark a lead as won (status closed, the default) or as lost (status lost). Mailshake: POST /leads/close.

mailshake_get_account

Show the signed-in Mailshake user and team. Also the cheapest call to check the API key. Mailshake: POST /me.

mailshake_get_campaign

Get one campaign and its message sequence. Mailshake: POST /campaigns/get.

mailshake_ignore_lead

Mark a lead as not worth pursuing (ignored). Undo with mailshake_reopen_lead. Mailshake: POST /leads/ignore.

mailshake_list_campaigns

List the team's campaigns with their IDs and status. Start here to find a campaignID. Costs 10 quota units per call. Mailshake: POST /campaigns/list.

mailshake_list_clicks

List the most recent clicks on tracked links. Costs 3 quota units per call. Mailshake: POST /activity/clicks.

mailshake_list_created_leads

List the most recently created leads (from Lead Catcher rules or manual conversions). Costs 5 quota units per call. Mailshake: POST /activity/created-leads.

mailshake_list_lead_status_changes

List the most recently updated leads (opened, won, lost or ignored). Costs 5 quota units per call. Mailshake: POST /activity/lead-status-changes.

mailshake_list_leads

List the team's leads: recipients who may be interested. Filter by campaign, status (for example open) or the teammate the lead is assigned to. Costs 1 quota unit per call. Mailshake: POST /leads/list.

mailshake_list_opens

List the most recent email opens. Costs 2 quota units per call. Mailshake: POST /activity/opens.

mailshake_list_recipients

List the recipients of one campaign. Filter by state (for example opened, clicked, replied, wasSent, bounced, paused, hasProblems); set negateAction to exclude that state. Costs 10 quota units per call. Mailshake: POST /recipients/list.

mailshake_list_replies

List the most recent replies, with the reply text as plain text. Use replyType reply for real answers; bounce, out-of-office, unsubscribe and delay-notification are the other kinds. Costs 10 quota units per call. Mailshake: POST /activity/replies.

mailshake_list_senders

List the sender accounts (the mailboxes that send campaign emails). Mailshake: POST /senders/list.

mailshake_list_sent_messages

List the most recent emails sent, with the recipient and the message text as plain text. Costs 1 quota unit per call. Mailshake: POST /activity/sent.

mailshake_list_team_members

List the users on the team, for assigning leads. Mailshake: POST /team/list-members.

mailshake_pause_campaign

Stop all sending for a campaign now. Emails already in a batch are not stopped. Undo with mailshake_unpause_campaign. Mailshake: POST /campaigns/pause.

mailshake_pause_recipient

Stop all sending to one recipient in a campaign. Undo with mailshake_unpause_recipient. Mailshake: POST /recipients/pause.

mailshake_reopen_lead

Make a closed or ignored lead open again for review. Mailshake: POST /leads/reopen.

mailshake_unpause_campaign

Resume sending for a paused campaign. The sending calendar reschedules its pending emails. Mailshake: POST /campaigns/unpause.

mailshake_unpause_recipient

Resume sending to one paused recipient in a campaign. Mailshake: POST /recipients/unpause.

Endpoints

URL	Transport	State	Latency	Checked
https://mailshake.usefulapi.io/mcp	streamable-http	answering	231 ms	11 min ago

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Mailshake MCP by usefulapi — questions

Answers built from our own checks of this server.

What can Mailshake MCP by usefulapi do?

It exposes 20 tools, read directly from the server on our last check. Among them: mailshake_close_lead, mailshake_get_account, mailshake_get_campaign, mailshake_ignore_lead, mailshake_list_campaigns, mailshake_list_clicks and 14 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Mailshake MCP by usefulapi working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 77 of 77 checks got a reply (100.0%), average response time 213 ms. The bar chart above shows every period we have measured.

How do I connect Mailshake MCP by usefulapi?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Mailshake MCP by usefulapi need an API key?

No. Mailshake MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 20 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Mailshake MCP by usefulapi?

It answers our handshake in 213 ms on average, which is faster than 67% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Mailshake MCP by usefulapi open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at mailshake.usefulapi.io, which runs on its operator's own terms.