Newsletters
Newsletter signup ad
Ask for sign-ups with the newsletter name, one benefit, and a drawn input box.
Change the newsletter name, the benefit line, and the button. Upload your logo.
TypeMarketing images
File typesPNG, JPEG, WebP
SourceMade by thirds.ai with original graphic marks and fictional sample names.
LicenceFree to copy and use in your own templates
Your data
See the fields before you copy.
Your copy starts with these sample values. Change any of them.
{
"brand": "Lumen Skincare",
"newsletter_name": "The Sunday Glow",
"benefit_line": "One short email a week with a routine tip, a product test, and a reader question answered.",
"input_placeholder": "you@example.com",
"signup": "Sign me up",
"stamp_line": "Free. Once a week. Unsubscribe any time."
}Use it your way
Render the same template on the web, by API, or through MCP.
curl https://thirds.ai/v1/image \
-H "Authorization: Bearer $THIRDS_API_KEY" \
-H "Content-Type: application/json" \
-d '{"template_id":"tpl_your_copy","version":1,"data":{"brand":"Lumen Skincare","newsletter_name":"The Sunday Glow","benefit_line":"One short email a week with a routine tip, a product test, and a reader question answered.","input_placeholder":"you@example.com","signup":"Sign me up","stamp_line":"Free. Once a week. Unsubscribe any time."},"image":{"format":"png","width":1200,"height":628}}'{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "render",
"arguments": {
"output": "png",
"idempotency_key": "newsletter-signup-ad-1",
"request": {
"template_id": "tpl_your_copy",
"version": 1,
"data": {
"brand": "Lumen Skincare",
"newsletter_name": "The Sunday Glow",
"benefit_line": "One short email a week with a routine tip, a product test, and a reader question answered.",
"input_placeholder": "you@example.com",
"signup": "Sign me up",
"stamp_line": "Free. Once a week. Unsubscribe any time."
},
"image": {
"width": 1200,
"height": 628
}
}
}
}
}