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Ballast MCP Server

by useballast Your server? Claim it
answering

Ballast is answering right now. Last checked 7 min ago. Last commit 30 Oct 2026.

Cold email outreach: manage campaigns, lead sequences, mailbox warmup, and unified inbox replies.

Uptime history 67 hours of history · worst hour 75%
67 hours agonow
100.0%
Uptime 24h
92 of 92 checks
—
Tools
hidden behind auth
294 ms
Response time
average over 24h
1
Stars
last commit 30 Oct 2026

Ballast does not always answer

Over the last week it answered 99.2% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

run in your terminal
claude mcp add ballast-mcp --transport http https://ballast.to/api/mcp
Settings → Connectors → Add custom connector, then paste this address
https://ballast.to/api/mcp
~/.codex/config.toml
[mcp_servers.ballast-mcp]
url = "https://ballast.to/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "ballast-mcp": {
      "url": "https://ballast.to/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "ballast-mcp": {
      "type": "http",
      "url": "https://ballast.to/api/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URLTransportStateLatencyChecked
https://ballast.to/api/mcp streamable-http sign-in 234 ms 7 min ago

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Ballast — questions

Answers built from our own checks of this server.

Why is there no tool list for Ballast?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.
Is Ballast working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 294 ms. The bar chart above shows every period we have measured.
How do I connect Ballast?
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. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to Ballast?
No API key is involved. Ballast answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is Ballast?
It answers our handshake in 294 ms on average, which is faster than 48% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Ballast open source?
The code is open source: it is published under the MIT licence, written in JavaScript and 1 stars on GitHub. The licence covers the code in the repository, not the hosted service at ballast.to, which runs on its operator's own terms.