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WarmInboxes Free Deliverability Tools

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Free cold email deliverability checks, list tools, inbox planning and original placement research.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http warminboxes-free-deliverability-tools 'https://warminboxes.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "warminboxes-free-deliverability-tools": {
            "type": "http",
            "url": "https://warminboxes.com/mcp"
        }
    }
}

Frequently asked questions

What is WarmInboxes Free Deliverability Tools?

Free cold email deliverability checks, list tools, inbox planning and original placement research.

How do I install WarmInboxes Free Deliverability Tools?

It runs as a remote server. In Claude Code: claude mcp add --transport http warminboxes-free-deliverability-tools 'https://warminboxes.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does WarmInboxes Free Deliverability Tools need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains WarmInboxes Free Deliverability Tools?

It is published by com.warminboxes. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.