email
SendGrid
SendGrid (Twilio) v3 API — send transactional email, manage dynamic templates, marketing contacts (upsert / get / search / count / delete) and lists (create / get / list / delete), pull email statistics, and read bounce suppressions. BYOK: a SendGrid API key (Bearer).
What it does with Protobox
Connect SendGrid once and its 17 tools become available to every agent talking to your MCP server: no separate integration code per client.
Works with
Claude, Cursor, ChatGPT, and any MCP-compatible client