Sendinel MCP Server: Install & Setup

Install Sendinel in Claude Code

Remote URL

Claude Code

claude mcp add --transport http sendinel https://sendinel.ai/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "sendinel": {
      "url": "https://sendinel.ai/mcp"
    }
  }
}

npm

Claude Code

claude mcp add sendinel -e SENDINEL_API_KEY=... -- npx -y @sendinel/mcp-server

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "sendinel": {
      "command": "npx",
      "args": [
        "-y",
        "@sendinel/mcp-server"
      ],
      "env": {
        "SENDINEL_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Sendinel MCP server do?

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

Is the Sendinel MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Sendinel run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add Sendinel to Claude Code?

Run: claude mcp add --transport http sendinel https://sendinel.ai/mcp

More communication MCP servers

View all

Sendpulse

theYahia/sendpulse-mcp

MCP server for SendPulse API — mailing lists, email sending, statistics. OAuth2 auth.

LocalFree

send0

send0-dev/send0-v2

Email inboxes for AI agents: create an address, wait for codes and links, send and reply in threads.

Local + RemoteAccount needed

sourcebolt

0208

candidloom-hub/sourcebolt

Fast MCP server for Google NotebookLM: notebooks, sources, cited chat, research. Unofficial.

LocalFree

Selectic

selectic-ai/selectic-mcp

AI agent that calls, texts & emails businesses for you, then returns transcripts and replies.

Local + RemoteFree

SpacePost

404-studio/spacepost-mcp

Send email and manage domains, contacts and webhooks on SpacePost, the Resend-compatible email API.

Local + RemoteAccount needed

Secretcarousel

0647

jyswee/secretcarousel

Agent-first secrets vault. Store, rotate, and share credentials from chat. 20 tools.

Local + RemoteFree