The email MCP server.

the MCP tools. Remote HTTP MCP with OAuth. Draft campaigns, send tests, build flows, manage contacts - from Claude, ChatGPT, Cursor, Codex, or Gemini. No API key juggling.

$ claude mcp add --transport http nitrosend https://api.nitrosend.com/mcp

Why MCP

Email, in the same window as your work.

The Model Context Protocol is the open standard for connecting AI agents to tools. Nitrosend is built MCP-first, not bolted on.

Native

Not a wrapper

Every agent-facing marketing workflow is exposed as an MCP tool. No "use the dashboard for this" gaps.

OAuth

No API keys

One-click auth from inside your agent. Tokens never touch your terminal history.

Resources

Account-aware

Agents can read your account state, schema, and Brand Kit memory before they act.

What an agent can do

Full workflow, not just send.

Send-only MCPs give the agent one verb. Nitrosend gives it the workflow surface for campaigns, flows, audiences, reviews, tests, and approvals.

Real prompts that work today

"Use Nitrosend to draft a welcome campaign for the Newsletter list with a 10% discount code and a short friendly body."
"Use Nitrosend to draft a spring sale campaign for my Newsletter list, subject line under 50 characters, include the hero image from /assets/spring-hero.png."
"Use Nitrosend to build a 5-email onboarding flow for new signups. Day 0 welcome, day 3 tips, day 7 case study, day 14 upgrade prompt, day 30 check-in. Schedule using our timezone."
"Use Nitrosend to find contacts who opened the last campaign but didn't click. Save as a segment called 'Warm leads'."
"Use Nitrosend to check my deliverability on the welcome flow. Any hard bounces?"
"Use Nitrosend to walk me through moving from shared sending to BYO SES, including which AWS credentials and DNS records I need."

Each prompt translates to one or more typed MCP tool calls. The agent plans the sequence, calls the tools, and reports back.

The MCP gives the agent the tools. For the email marketing know-how behind those prompts (flow timing, benchmarks, deliverability triage, compliance), pair it with the free Email Marketing Bible skill.

MCP tools

The MCP surface area.

Every MCP action your AI agent can take. No partial implementations.

nitro_ingest

Import local, chat, or URL images into reusable email assets.

nitro_compose_campaign

Draft a marketing campaign.

nitro_compose_flow

Build a multi-step automation flow.

nitro_define_segment

Create rule-based contact segments.

nitro_manage_audience

Manage lists, tags, and subscriptions.

nitro_search_contacts

Find contacts by attributes or engagement.

nitro_import_contacts

Bulk import contacts from CSV.

nitro_manage_template

Create and version on-brand templates.

nitro_set_brand_kit

Set brand colors, fonts, logo.

nitro_manage_domains

Add and verify sending domains.

nitro_configure_providers

Connect SES, Mailgun, Postmark for BYO.

nitro_control_delivery

Schedule, pause, or resend campaigns.

nitro_review_delivery

Inspect deliverability and bounces.

nitro_get_insights

AI-generated performance insights.

nitro_get_status

Account context, sender identity, readiness, and dashboard links.

nitro_send_test_message

Send a preview before going live.

nitro_query

Free-form query against your account.

nitro_set_memory

Persist brand voice and notes.

nitro_request_support

Open a support ticket from your agent.

nitro_configure_account

Set account timezone, defaults, physical address.

nitro_manage_billing

View plan, usage, and billing info.

Install

One command per client.

Claude Code

claude mcp add --transport http nitrosend https://api.nitrosend.com/mcp

Claude Desktop, Claude.ai, Claude Cowork

Nitrosend is an official connector in the Claude directory. Go to Settings → Connectors, search for Nitrosend and click Connect, or open claude.ai/directory/nitrosend. Sign in when prompted. No URL to paste, no API key.

Cursor

Nitrosend is an official plugin on the Cursor Marketplace. In the Agent chat run /add-plugin nitrosend, or click Add to Cursor at cursor.com/marketplace/nitrosend, then sign in when prompted. Managing servers by hand? Add to .cursor/mcp.json:

{ "mcpServers": { "nitrosend": { "url": "https://api.nitrosend.com/mcp" } } }

OpenAI Codex

codex mcp add nitrosend --url https://api.nitrosend.com/mcp
codex mcp login nitrosend

ChatGPT

Add the official Nitrosend plugin from ChatGPT's plugin directory, click Connect and sign in. No config, no API key. It then works in ChatGPT on the web, desktop and mobile.

Gemini CLI

Run this in your terminal, then /mcp auth nitrosend in Gemini CLI to sign in:

gemini mcp add -s user -t http nitrosend https://api.nitrosend.com/mcp

Windsurf, VS Code Copilot, Zed: see the integrations hub.

FAQ

Email MCP - common questions.

What is an email MCP server?

An email MCP server is a Model Context Protocol server that exposes email-platform operations as typed tools an AI agent can call. Instead of the agent scraping a dashboard or writing raw HTTP requests, it sees tools like nitro_compose_campaign, nitro_send_test_message, or nitro_search_contacts, calls them with structured arguments, and gets structured responses.

How many tools does the Nitrosend MCP expose?

Twenty-eight tools, covering campaigns, automation flows, contacts, segments, templates, domains, providers, delivery control, insights, account, billing, Brand Kit memory, and support. App-triggered transactional sends stay in the REST API or SDK, while MCP handles drafts, tests, reviews, and approvals.

Which AI clients work with the Nitrosend MCP?

Claude Code, Claude Desktop, Claude.ai, Claude Cowork, Cursor, OpenAI Codex, ChatGPT, Gemini CLI, Windsurf, VS Code Copilot, Zed, and v0. Any client that speaks remote HTTP MCP with OAuth is supported.

Do I need an API key to use the MCP?

No, for the supported clients above. OAuth handles auth in a browser window when you first connect. For stdio-only clients or local dev, the @nitrosend/mcp bridge accepts a NITROSEND_API_KEY environment variable.

Is the MCP free?

Yes. Every plan including Free includes full MCP/API/CLI access. You only pay for emails sent and AI actions consumed, never for MCP access itself.

Can I use Nitrosend's MCP with my existing email provider?

Yes, on Pro and above. Configure BYO (bring-your-own) sending keys for Amazon SES, Resend, Postmark, Mailgun, or SendGrid. The MCP tools route through your existing provider while Nitrosend handles templates, flows, contacts, and AI.

Email, where your AI lives.

One command. Free to start. Send your first campaign in under five minutes.

$ claude mcp add --transport http nitrosend https://api.nitrosend.com/mcp