Create Marketing Banners
Generate professional marketing banners for campaigns, promotions, and seasonal sales with AI image generation.
Generate Email Headers
Design compelling email header images for newsletters, drip campaigns, and transactional emails.
Quick answer: Use the Generate Image tool through ToolRouter to generate email headers directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolEmail header images are the first visual element recipients see when they open your message. A strong header image sets the tone, reinforces your brand, and significantly impacts whether readers continue scrolling. Yet most email marketers reuse the same template or skip header images entirely because creating them is too slow.
ToolRouter's text_to_image skill generates email headers optimized for inbox rendering. Specify your email's topic, campaign theme, and brand colors to get a header that looks professional across Gmail, Outlook, and Apple Mail. The consistent 600px width standard means you can describe what you need and get something immediately usable.
This is perfect for marketing teams sending weekly newsletters, e-commerce brands with frequent promotional emails, and SaaS companies personalizing drip campaign headers for different user segments.
How to generate email headers with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Claude handles email header design as an iterative creative workflow in your terminal. Describe your campaign theme, generate header images, and create variations for different segments through multi-step conversation. Claude can produce an entire month of newsletter headers with consistent branding in one session.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
How to generate email headers with Claude
Once connected (see setup above), use the Generate Image tool:
- Describe the header: "Generate a 600x200 email header for our weekly tech newsletter"
- Claude creates the header image using text_to_image
- Iterate: "Add a subtle tech pattern background and our logo color scheme"
- Generate headers for the next 4 newsletter editions
Example prompt for Claude
Try this with Claude using the Generate Image tool
Generate a 600x200 email header for a monthly product update newsletter. Clean, modern design with a blue gradient and subtle grid pattern. Space for the headline "What's New in March".
Tips for Claude
- Keep email headers at 600px wide for universal inbox compatibility
- Ask Claude to generate seasonal variations for holiday campaigns
- Create a template style that works across all your email types
ChatGPT combines email marketing knowledge with visual generation, suggesting header designs that drive higher open-to-click rates. Describe your campaign and audience, and ChatGPT creates headers optimized for email rendering. The conversational approach produces both the visual and suggested subject lines together.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
How to generate email headers with ChatGPT
Once connected (see setup above), use the Generate Image tool:
- Describe the email header: "I need a banner for our welcome email series"
- ChatGPT generates the header image and shows it in conversation
- Refine: "Make it warmer and add a friendly illustration"
- Ask for headers for each email in your drip sequence
Example prompt for ChatGPT
Try this with ChatGPT using the Generate Image tool
Create an email header for our welcome series. Warm, inviting design that says "Welcome aboard!" with friendly abstract illustrations. 600x200 pixels.
Tips for ChatGPT
- ChatGPT can suggest header designs based on your email campaign goals
- Ask for A/B test variations to optimize open-to-click rates
- Request matching headers for an entire drip campaign sequence
Copilot generates email headers within your IDE, making it natural to create marketing visuals alongside email template code. Generate header images and the HTML embed code in the same session, keeping visual assets synchronized with your email development workflow.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
How to generate email headers with Copilot
Once connected (see setup above), use the Generate Image tool:
- In Copilot Chat: "Generate an email header for our developer newsletter"
- Copilot creates the header via ToolRouter
- Ask for code: "Show me the HTML email template to embed this header"
- Save the image and use it in your email template
Example prompt for Copilot
Try this with Copilot using the Generate Image tool
Generate a 600x200 email header for a developer changelog newsletter. Dark theme with code aesthetics and the text "Dev Updates" in monospace font.
Tips for Copilot
- Copilot can generate both the header image and the HTML template code
- Great for developer newsletters and product changelog emails
- Keep the file size in mind — optimize for fast email loading
OpenClaw batch-produces email header graphics through automated marketing pipelines. Generate headers for an entire campaign sequence or newsletter calendar with consistent branding in one pass. This structured approach delivers ready-to-use visual assets for high-volume email programs.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsHow to generate email headers with OpenClaw
Once connected (see setup above), use the Generate Image tool:
- Describe the header: "Generate an email banner for our promotional sale"
- OpenClaw creates the header image optimized for email
- Request variations: "Create 3 different versions for A/B testing"
- Generate headers for your full campaign calendar
Example prompt for OpenClaw
Try this with OpenClaw using the Generate Image tool
Generate a 600x200 email header for a promotional sale. Bold, eye-catching design with a "50% OFF" callout and vibrant red and white colors.
Tips for OpenClaw
- Batch-generate headers for a month of newsletters at once
- Keep the design simple — complex images don't render well in all email clients
- Ask OpenClaw to create themed headers for seasonal campaigns
Frequently Asked Questions
How do I generate email headers with an AI assistant?
Design compelling email header images for newsletters, drip campaigns, and transactional emails. Connect the Generate Image tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Describe the header: "Generate a 600x200 email header for our weekly tech newsletter" Claude creates the header image using text_to_image
Which AI assistants can generate email headers?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all generate email headers using the Generate Image tool through ToolRouter, with no API keys or coding required.
What does the Generate Image tool do?
Create, edit, and upscale images with AI-powered generation tools for marketing, product design, and content creation.
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