Run AstroSend your way

One platform for the entire newsletter lifecycle, from research and writing to growth and revenue:

AstroSend is an AI-native email platform that helps creators and businesses research, write, publish, grow, and monetize newsletters from a single platform.

It turns your company updates, blog posts, social content, and industry news into a polished newsletter every week, then helps you grow your audience and monetize through sponsorships, paid subscriptions, digital products, and more.

You can drive the whole thing three ways:

Connect Claude, ChatGPT, Cursor, or any MCP-compatible client to manage newsletters, publish content, and access your AstroSend workspace. It runs on AstroSend's official MCP (Model Context Protocol) server, published on npm as astrosend-mcp.

1. Generate an API key

In the dashboard go to Profile → MCP (/dashboard/profile/mcp), name a key, and copy it. You will only see the full key once.

2. Add it to your editor config

Replace YOUR_API_KEY with the key from step 1, then restart your editor.

{
  "mcpServers": {
    "astrosend": {
      "command": "npx",
      "args": ["-y", "astrosend-mcp"],
      "env": { "ASTROSEND_API_KEY": "YOUR_API_KEY" }
    }
  }
}

• Claude Code: .mcp.json in your project, or run the command below.
• Cursor: ~/.cursor/mcp.json
• Other editors: any client that supports stdio MCP servers works with the same three fields (command, args, env).

Prefer the CLI? In Claude Code:

claude mcp add astrosend \
  --env ASTROSEND_API_KEY=YOUR_API_KEY \
  -- npx -y astrosend-mcp

3. Start prompting

Once connected, just ask. For example:

• “Draft a newsletter about our June updates and save it.”
• “Add jane@example.com to my subscribers.”
• “How many people will my latest draft reach? If it looks right, send it.”
• “Show me open and click rates for my recent newsletters.”

A single API key authenticates both the MCP server and the public API. Manage keys under Profile → MCP. Keys are shown in full only at creation, stored hashed, and can be revoked at any time.

Build custom workflows with AstroSend's REST API. Anything you can do in the dashboard, you can automate in your own code, for example:

Full endpoint reference

The REST API lives under https://astrosend.com/api/public/v1. Authenticate with your API key as a Bearer token. The MCP server is a thin wrapper over these same endpoints, so anything your AI agent can do, your own code can do too.

curl https://astrosend.com/api/public/v1/stats \
  -H "Authorization: Bearer YOUR_API_KEY"

Every AstroSend publication includes a fast, SEO-friendly website designed to convert visitors into subscribers.

It is hosted for you and live at astrosend.com/your-handle (or your own domain). Build it under Grow → Website with no code.

There are two kinds of domains in AstroSend, and they are set up separately.

Landing-page domain

Serve your subscriber website from your own domain, for example news.yourbrand.com. Add the domain in the dashboard and you will get the exact DNS record to create:

• Subdomain (recommended, e.g. news.yourbrand.com): add a CNAME record pointing to the target we show you.
• Root domain (yourbrand.com): add the A record we show you.

DNS changes can take a little while to propagate. We verify automatically and issue an SSL certificate for you once the record is live.

Sending (email) domain

To send newsletters from your own address, verify your domain under Profile → Sending Domains. Enter your domain and From details, and AstroSend generates the exact DNS records to publish. Add them at your DNS provider, click Validate, and you are ready to send with proper email authentication.

The records AstroSend gives you cover all three:

DNS changes can take a few minutes to a few hours to propagate. AstroSend re-checks each record and marks the domain verified once they are live. Until your sending domain is verified, newsletters go out from AstroSend's shared address.

Sell ad placements in your newsletter and let sponsors book and pay themselves. Manage it under Monetize → Sponsorships.

Charge a recurring subscription for premium issues. Configure a paid tier under Monetize → Paid Newsletter, set the headline, price and currency, and describe what paid subscribers get.

Sell downloadable files, ebooks, templates, presets, anything, directly to your audience. Manage them under Monetize → Products.

Package your knowledge into a paid course. Build it under Monetize → Courses from sections and content blocks, set a price and currency, and sell it through Stripe.

Your list lives under Grow → Subscribers. Add people manually, import in bulk, or let them sign up through your website. Every subscriber is tracked with the source they came from.

The core of AstroSend: instead of staring at a blank page each week, you get a ready-to-edit draft built from your business context and fresh, relevant news.

Chat with our team directly from your dashboard at any time. Every plan includes live chat support, just open Profile → Support to start a conversation with a real human on our team. Not signed in yet? Use the contact page instead. For account and billing, see Profile → Account.