Sentfrom MCP server

sentfromai-mcp

MCP server for SentFromAI — email infrastructure for AI agents.

Gives any MCP-capable agent (Claude Code, Claude Desktop, Cursor, VS Code, Gemini CLI, Codex, OpenClaw, or your own MCP host) email as native tools: create inboxes, send, reply, forward, search, read threads, manage drafts, custom domains, webhooks, and allow/block rules — 21 tools, each a thin wrapper over the SentFromAI REST API. Every tool carries MCP annotations (read-only / write / send / delete) so hosts can group them and confirm the irreversible ones.

You need a SentFromAI API key (sflive…) from the console. Free plan: 5 inboxes, 5,000 emails/month, no card.

Let your agent install it

Paste this into your agent (Claude Code, OpenClaw, Gemini CLI, any MCP-capable agent):

Set up SentFromAI email for yourself: fetch https://docs.sentfrom.ai/agent-install.md
and follow it. Ask me for the API key when you need it.

Install

Claude Code

As a plugin (asks for the key when you enable it, and adds a skill that teaches Claude email etiquette):

claude plugin marketplace add sentfromai/sentfromai-mcp
claude plugin install sentfromai@sentfromai

Or as a plain MCP server:

claude mcp add sentfromai --env SENTFROMAI_API_KEY=sf_live_… -- npx -y sentfromai-mcp

Claude Desktop, Cursor, Windsurf, Cline, any JSON-config host

{
  "mcpServers": {
    "sentfromai": {
      "command": "npx",
      "args": ["-y", "sentfromai-mcp"],
      "env": { "SENTFROMAI_API_KEY": "sf_live_…" }
    }
  }
}

Cursor one-click (then paste your key into the generated config):

VS Code

code --add-mcp '{"name":"sentfromai","command":"npx","args":["-y","sentfromai-mcp"],"env":{"SENTFROMAI_API_KEY":"sf_live_…"}}'

Gemini CLI

gemini extensions install https://github.com/sentfromai/sentfromai-mcp

Gemini asks for the API key on install and keeps it in your keychain.

Codex CLI

codex mcp add sentfromai --env SENTFROMAI_API_KEY=sf_live_… -- npx -y sentfromai-mcp

OpenClaw

openclaw mcp add sentfromai --command npx --arg -y --arg sentfromai-mcp --env SENTFROMAI_API_KEY=sf_live_…
openclaw skills install git:sentfromai/sentfromai-mcp

Full guide: docs.sentfrom.ai/frameworks/openclaw.

Hosted endpoint (no install)

The same 21 tools are served over Streamable HTTP at https://api.sentfrom.ai/mcp for hosts that only speak remote MCP (claude.ai connectors, ChatGPT apps, Meta Muse, Cursor remote servers, MCP Inspector). Authenticate with Authorization: Bearer sflive… (an x-api-key header also works), or let OAuth-capable hosts sign you in: the endpoint publishes RFC 9728 resource metadata pointing at SentFromAI's authorization server.

claude mcp add --transport http sentfromai https://api.sentfrom.ai/mcp --header "Authorization: Bearer sf_live_…"

Tools

Shortened. The full README is on GitHub.