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Sendinel

Official registry Productivity

AI-controlled email ops for campaigns, contacts, segments, analytics, and sending.

Source code 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 sendinel 'https://sendinel.ai/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "sendinel": {
            "type": "http",
            "url": "https://sendinel.ai/mcp"
        }
    }
}
NPM package @sendinel/mcp-server
Claude Code 
claude mcp add sendinel -e 'SENDINEL_API_KEY=<your sendinel_api_key>' -- npx -y @sendinel/mcp-server@1.0.78
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "sendinel": {
            "command": "npx",
            "args": [
                "-y",
                "@sendinel/mcp-server@1.0.78"
            ],
            "env": {
                "SENDINEL_API_KEY": "<your sendinel_api_key>"
            }
        }
    }
}

Environment variables

  • SENDINEL_API_KEY required secret Sendinel API key. Required for stdio startup and scopes the server to a project.

Frequently asked questions

What is Sendinel?

AI-controlled email ops for campaigns, contacts, segments, analytics, and sending.

How do I install Sendinel?

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

Does Sendinel need an API key?

Yes. It expects SENDINEL_API_KEY, which you set in its configuration.

Is Sendinel open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Sendinel?

It is published by kmdesle. 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.