One powerful backend to handle email signups from all your marketing sites. Track attribution, manage drip campaigns, and boost conversions with AI-powered insights.
From multi-site management to AI-powered analytics, Signup Samurai has all the tools to grow your email list and boost conversions.
Manage email signups from unlimited marketing sites with individual configurations and branding.
Full MCP server support for AI assistants like Claude and Amazon Q. Manage contacts, analytics, and campaigns through natural language.
Support for Resend, AWS SES, and Postmark with automatic failover and provider-specific optimizations.
Secure email verification with token-based confirmation and HMAC signature validation.
Create sophisticated email sequences with customizable templates and smart segmentation.
Track attribution with UTM parameters, conversion rates, and comprehensive performance metrics.
Get up and running in minutes with our simple 3-step process
Add your marketing sites and configure email providers. Set up CORS, authentication, and branding in minutes.
Use our simple API to collect email signups with attribution tracking, UTM parameters, and double opt-in verification.
Monitor performance with detailed analytics, run drip campaigns, and use AI insights to optimize your conversion rates.
Manage your entire email signup system through natural language with AI assistants like Claude, Amazon Q, and other MCP-compatible tools. No more clicking through dashboards.
Our Model Context Protocol (MCP) server enables seamless integration with AI assistants, allowing you to manage contacts, analyze performance, and automate workflows using natural language.
Ask your AI assistant for signup stats, conversion rates, and performance metrics across all your sites.
Search, filter, and manage contacts with simple commands like ‘show me yesterday's signups from Twitter’.
Create and manage drip campaigns, email lists, and site configurations through conversational AI.
Export contact lists, analytics data, and reports in various formats with simple voice commands.
Show me yesterday's signup stats for all sites
Here are your signup statistics for August 21, 2025:
Create a new list called “Product Launch 2025” for the main site
✅ Created new list “Product Launch 2025” with slug “product-launch-2025” for main-site. The list is now ready to accept subscribers!
Anthropic's Claude Desktop
AWS's AI Assistant
Any MCP-compatible client
More integrations
Run npm run mcp:setup to configure the MCP server
Generate an MCP API key from your admin dashboard
Add the server to your Claude Desktop or Amazon Q configuration
See what our customers are saying about Signup Samurai
“Signup Storm transformed how we manage email signups across our 12 marketing sites. The AI integration is a game-changer!”
“The double opt-in flow and attribution tracking helped us increase our email verification rate by 40%. Incredible results!”
“Finally, a centralized solution that just works. The drip campaigns and analytics have boosted our conversions significantly.”
Start free and scale as you grow. No hidden fees, no surprises.
Perfect for getting started
For growing businesses
For large organizations
Everything you need to know about Signup Samurai
You can be up and running in under 5 minutes. Simply sign up, add your first site, configure your email provider, and start collecting signups immediately.
We support Resend, AWS SES, and Postmark out of the box. Each provider can be configured per site with automatic failover and delivery optimization.
Our MCP (Model Context Protocol) integration allows AI assistants like Claude and Amazon Q to interact with your signup system for analytics, management, and automation tasks through natural language.
We automatically capture UTM parameters, page URLs, referrer information, and custom tags to help you understand which marketing channels are driving the most valuable signups.
Yes! You can create custom email templates for verification emails, drip campaigns, and notifications. Templates support both HTML and plain text with dynamic content.
Yes, our Starter plan is free forever and includes up to 1,000 contacts, 2 marketing sites, and all core features including double opt-in verification.
Join thousands of marketers who trust Signup Storm to manage their email signups and drive conversions across all their marketing sites.