MCP serverOfficial

agent-cold-email

Repository:: github.com/ys-projectcalc/agent-cold-email
Homepage:: coldrig.dev/
Stars:: 1
Last push:: 2026-09-25
License:: MIT

Coldrig — cold-email infra run by your agent: 28 MCP tools, live sending, free sandbox, from $99/mo.

Good fit for

No install, runs remotely
Official maker
One-command install

Facts

Category: Communication
Pricing: Unknown
Authentication: API key
Transport: stdio, Streamable HTTP
Hosting: Local, Remote
Maker: Official
Access: Unknown
Language: TypeScript
Install method: npx, Remote URL
Operating system: Unknown
Client: Unknown
License: Permissive
Maintenance: Active

Install

Remote

claude mcp add --transport http agent-cold-email https://api.coldrig.dev/mcp --header 'Authorization: <YOUR_VALUE>'

Local

claude mcp add --transport stdio agent-cold-email -- npx -y agent-cold-email

Remote

Customize > Connectors > + Add > Add custom connector
Name: agent-cold-email
URL: https://api.coldrig.dev/mcp
Sign in: "No sign in"
Header: Authorization: <YOUR_VALUE>
Click Add.

LocalPaste into claude_desktop_config.json

{
  "mcpServers": {
    "agent-cold-email": {
      "command": "npx",
      "args": [
        "-y",
        "agent-cold-email"
      ]
    }
  }
}

RemotePaste into ~/.cursor/mcp.json

{
  "mcpServers": {
    "agent-cold-email": {
      "url": "https://api.coldrig.dev/mcp",
      "headers": {
        "Authorization": "<YOUR_VALUE>"
      }
    }
  }
}

LocalPaste into ~/.cursor/mcp.json

{
  "mcpServers": {
    "agent-cold-email": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "agent-cold-email"
      ]
    }
  }
}

RemotePaste into .vscode/mcp.json

{
  "inputs": [
    {
      "type": "promptString",
      "id": "agent-cold-email-authorization",
      "description": "Authorization for agent-cold-email",
      "password": true
    }
  ],
  "servers": {
    "agent-cold-email": {
      "type": "http",
      "url": "https://api.coldrig.dev/mcp",
      "headers": {
        "Authorization": "${input:agent-cold-email-authorization}"
      }
    }
  }
}

LocalPaste into .vscode/mcp.json

{
  "servers": {
    "agent-cold-email": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "agent-cold-email"
      ]
    }
  }
}

Remote

{
  "mcpServers": {
    "agent-cold-email": {
      "serverUrl": "https://api.coldrig.dev/mcp",
      "headers": {
        "Authorization": "<YOUR_VALUE>"
      }
    }
  }
}

Local

{
  "mcpServers": {
    "agent-cold-email": {
      "command": "npx",
      "args": [
        "-y",
        "agent-cold-email"
      ]
    }
  }
}

Remote

[mcp_servers.agent-cold-email]
url = "https://api.coldrig.dev/mcp"
http_headers = { Authorization = "<YOUR_VALUE>" }

Local

[mcp_servers.agent-cold-email]
command = "npx"
args = ["-y", "agent-cold-email"]

Remote

{
  "mcpServers": {
    "agent-cold-email": {
      "httpUrl": "https://api.coldrig.dev/mcp",
      "headers": {
        "Authorization": "<YOUR_VALUE>"
      }
    }
  }
}

Local

{
  "mcpServers": {
    "agent-cold-email": {
      "command": "npx",
      "args": [
        "-y",
        "agent-cold-email"
      ]
    }
  }
}

Env vars and secrets

AGENT_COLD_EMAIL_API_KEYEnv varSecret
Bearer token from POST /signup (free, no card) — or run `npx agent-cold-email demo` first. Optional at startup: without it, `initialize`/`tools/list` still work (unauthenticated introspection), but every `tools/call` fails until a key is set.
AuthorizationHeaderSecret
Bearer token from POST /signup (free, no card) — or run `npx agent-cold-email demo` first

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Score: 64

Popularity: 6
Maintenance: 99
Trust: 93
Completeness: 90
Community: 50

Formula version 1

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