cold-email

About cold-email

Use cold-email with your agent

claude mcp add --transport http cold-email https://mcp.machfive.io/mcp/{api_key}

{
  "mcpServers": {
    "cold-email": {
      "url": "https://mcp.machfive.io/mcp/{api_key}"
    }
  }
}

Frequently asked questions

What is cold-email?

cold-email is an MCP (Model Context Protocol) server by bluecraft-ai in the Communication category. Generate hyper-personalized cold email sequences via AI.

How do I connect cold-email to Claude, Cursor, or another MCP client?

cold-email is a remote MCP server — add its endpoint (https://mcp.machfive.io/mcp/{api_key}) to your client's MCP configuration (for example with "claude mcp add", or under "mcpServers" in Cursor's mcp.json) and restart the client.

Is cold-email open source?

Yes — the source code is public at github.com/bluecraft-ai/machfive-mcp, with 2 GitHub stars.

Can AI agents pay to use cold-email?

Not yet through Loomal — cold-email is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.