Hosted MCP server

Connect your coding agent to Cold Agent

Talk naturally with Cold Agent from Claude Code, Codex, OpenCode, or another MCP client, then use 35 workspace-aware tools across campaigns, deliverability, leads, senders, integrations, and voice. A paid or trialing workspace only needs one tenant API key.

Cold Agent MCP

Streamable HTTP endpoint

https://getcoldagent.com/api/mcp

API-key authenticated

Paid or trialing workspace required

Works from local coding agents

Create your API key

API keys are scoped to your Cold Agent workspace. Create one in Settings, store it in your MCP client config, and revoke it from the same page whenever needed.

Recommended

Direct hosted HTTP

Use the hosted endpoint directly when your client supports Streamable HTTP servers with authorization headers.

{
  "mcpServers": {
    "cold-agent": {
      "url": "https://getcoldagent.com/api/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_COLD_AGENT_API_KEY"
      }
    }
  }
}

Stdio fallback

If your client only supports local stdio servers, use the Agent Pattern Labs npm bridge. It forwards the same hosted tools.

{
  "mcpServers": {
    "cold-agent": {
      "command": "npx",
      "args": ["-y", "@agent-pattern-labs/cold-agent-mcp"],
      "env": {
        "COLD_AGENT_API_KEY": "YOUR_COLD_AGENT_API_KEY"
      }
    }
  }
}

35 hosted tools

Start with ask_cold_agent for natural-language guidance. Your client can then call focused tools to inspect or operate the workspace. Confirm any action that sends email, spends credits, purchases a number, or changes a live campaign.

Natural-language workspace and campaign guidance

Workspace summaries and campaign inspection

Deliverability, domain, sender, and seed-test operations

Campaign drafting, sender assignment, launch, pause, and resume

Lead sourcing, verification, assignment, and activity timelines

Smartlead enrollment, preparation, and warmup controls

Inbound lead, ad spend, and VoIP integration setup

Voice settings, number search and purchase, and click-to-call

References

Protocol reference

The hosted MCP setup is linked to the current public Model Context Protocol specification for implementation context.

Model Context Protocol specification
Model Context Protocol
Authoritative MCP specification for clients, servers, transports, tools, and protocol behavior.