Newsletter header template

Fields

Use it with the API

1. Press "Use this template". After you sign in, the editor opens a copy in your workspace.

2. Publish it. Its id replaces YOUR_TEMPLATE_ID below.

3. Send your values:

curl -X POST https://mintrender.com/v1/render \  -H "Authorization: Bearer $MINTRENDER_KEY" \  -H "Content-Type: application/json" \  -d '{  "template": "YOUR_TEMPLATE_ID",  "data": {    "issue": "ISSUE 87 · 1 NOVEMBER 2026",    "title": "The Friday Build",    "subtitle": "Tools, tips and one long read for software makers."  },  "format": "png"}'

Signed link

Put a link like this in an image tag or an og:image tag. Your server signs it with the link key of your workspace. We make the image the first time someone opens the link. How to sign links.

https://img.mintrender.com/YOUR_TEMPLATE_ID/main.png?issue=ISSUE%2087%20%C2%B7%201%20NOVEMBER%202026&title=The%20Friday%20Build&subtitle=Tools%2C%20tips%20and%20one%20long%20read%20for%20software%20makers.&s=SIGNATURE

n8n and Make

Download the n8n workflow: in n8n, paste it on the canvas, then add your API key as a header credential (Authorization: Bearer mr_live_…).

In Make, add the HTTP module "Make a request": method POST, URL https://mintrender.com/v1/render, a header Authorization with Bearer and your key, body type Raw, content type JSON, and this body:

{  "template": "YOUR_TEMPLATE_ID",  "data": {    "issue": "ISSUE 87 · 1 NOVEMBER 2026",    "title": "The Friday Build",    "subtitle": "Tools, tips and one long read for software makers."  },  "format": "png"}