Quickstart

1. Get an API key

Sign up at snapchat-text-overlay-api.com and subscribe to a plan. Your API key will appear in your dashboard.

Or subscribe through RapidAPI and use your RapidAPI key instead.

2. Render an image

curl -X POST https://snapchat-text-overlay-api.com/v1/overlay \
  -H "x-api-key: snap_live_your_key" \
  -F "asset=@photo.jpg" \
  -F "text=late checkout energy" \
  --output rendered.png

3. Render a video

curl -X POST https://snapchat-text-overlay-api.com/v1/overlay \
  -H "x-api-key: snap_live_your_key" \
  -F "asset=@story.mp4" \
  -F "text=night one in miami" \
  --output rendered.mp4

4. Transparent overlay PNG

curl -X POST https://snapchat-text-overlay-api.com/v1/overlay \
  -H "x-api-key: snap_live_your_key" \
  -F "width=1080" \
  -F "height=1920" \
  -F "text=late checkout energy" \
  --output overlay.png

5. Check the result

Open rendered.png, rendered.mp4, or overlay.png. You’ll get either rendered media or a transparent caption overlay, depending on whether you sent an asset.

What happened

1. You uploaded a file and caption text via multipart form data
2. The API either rendered the overlay onto media or returned a transparent PNG overlay
3. The binary file came back directly in the response body
4. Metadata like render time and source type came back in response headers