Nitrosend

**Nitrosend is AI-Native Email** — campaigns, automation flows and transactional email, run end to end from Claude, ChatGPT, Codex, Cursor or any MCP client. No dashboard required. **What your agent can do** - **Audience** — import, search and update contacts; manage lists, tags and events; build and preview segments with live counts - **Compose** — branded email templates, multi-step automation flows, and email or SMS campaigns, styled from a brand kit scraped off your own site - **Review** — spam and preflight checks, rendered previews, and real test sends before anything goes out - **Deliver** — approve, schedule and control sends, with approval always a separate step - **Domains** — add a sending domain, get its DNS records, and verify them - **Insights** — opens, clicks, unsubscribes and trends, against benchmarks - **Plus** — transactional sends, a reply inbox your agent can work, BYO sending providers, billing, and searchable docs **Composing never sends.** Compose tools only ever produce drafts; delivery is a separate, explicitly approved call. An agent can build an entire campaign with no risk of mailing your list by accident. Free forever on $0 — full MCP access, 8,000 emails up front then 500/month, and unlimited contacts on every plan. No credit card.

First seen 2 Oct 2026. Evidence as of 2 Oct 2026.