Unitpost for Claude.ai
com.unitpost/mcp
Send email with approval: hosted MCP for email, campaigns, contacts, domains.
client:Claude.ai
transport:streamable-http
Install Unitpost in Claude.ai
Settings → Connectors → Add custom connector
https://mcp.unitpost.com/mcp
Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs