SwarmGen + Zapier

Generate images automatically from any Zap

Zapier connects SwarmGen to thousands of apps without writing a line of code. Set a trigger — a new Shopify order, a Typeform submission, a new row in Google Sheets — and let SwarmGen automatically generate a branded image and deliver the URL to the next step in your Zap.

How to set it up

1
Build your template in SwarmGen
Create an HTML template with merge fields like {{title}}, {{price}}, and {{image}}. Set the dimensions and export format (PNG, JPG, or PDF).
2
Add a Webhooks by Zapier action
In your Zap, add a "Webhooks by Zapier" action set to POST. Set the URL to https://swarmgen.io/api/templates/YOUR_TEMPLATE_UUID/render and add an Authorization header set to Bearer sgk_YOUR_API_KEY.
3
Map your trigger data to merge fields
Set the payload type to JSON. In the data field, build a JSON body with a "data" key containing your merge field values mapped from the trigger step. Add "returnUrl": true to receive a URL in the response.
4
Use the image URL in subsequent steps
SwarmGen returns { "url": "...", "jobId": "...", "format": "png", "expiresAt": "..." }. Map the url field to a Gmail attachment, Slack message, Notion database, or any downstream app in your Zap. Render URLs are valid for 5 days — download and re-host for long-lived use.

Code example

Webhooks by Zapier — POST bodyjson

// POST https://swarmgen.io/api/templates/YOUR_TEMPLATE_UUID/render
// Authorization: Bearer sgk_YOUR_API_KEY
// Response: { "url": "https://...", "jobId": "...", "format": "png", "expiresAt": "..." }

{
  "data": {
    "title": "{{Product Name}}",
    "price": "{{Price}}",
    "image": "{{Product Image URL}}",
    "vendor": "{{Vendor}}"
  },
  "returnUrl": true
}

Bespoke integrations are not supported by our team. The sample code here is for guidance and you will need technical knowledge or a developer to implement it. We plan to release dedicated plugins for key tools as demand grows.