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Make with Vessero from your own code

Pictures, clips, UGC ads, voiceovers, music, stories, the Creative Board and the Creative Director, from your app, service or agent. On your account, paid in your Vessero credits at the prices the site shows.

Base URL
https://vessero.com/api/v1
Version
2026-11-03 · sent as Vessero-Version
Keys
In Vessero, Settings → API · up to 20
Limit
240 calls a minute per key
Price it · freePOST/images/quote
curl -X POST https://vessero.com/api/v1/images/quote \
  -H "Authorization: Bearer $VESSERO_API_KEY" \
  -H "Idempotency-Key: 47f8f6f5-ea00-4fb1-925f-76aac956a0ec" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "The shirt in the picture on a wooden hanger by a window, soft morning light",
    "model": "nano-banana-pro",
    "resolution": "4K",
    "referenceKeys": [
      "https://example.com/products/linen-shirt.jpg"
    ]
  }'
Response200 OK
{
  "object": "quote",
  "credits": 12,
  "balance": 840,
  "lines": [
    "1 image × 12 (Nano Banana Pro · 4K)"
  ],
  "notes": [],
  "requestId": "47f8f6f5-ea00-4fb1-925f-76aac956a0ec",
  "run": {
    "method": "POST",
    "path": "/api/v1/images",
    "confirmCredits": 12,
    "idempotencyKey": "47f8f6f5-ea00-4fb1-925f-76aac956a0ec"
  }
}
Run itPOST/images
curl -X POST https://vessero.com/api/v1/images \
  -H "Authorization: Bearer $VESSERO_API_KEY" \
  -H "Idempotency-Key: 47f8f6f5-ea00-4fb1-925f-76aac956a0ec" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "The shirt in the picture on a wooden hanger by a window, soft morning light",
    "model": "nano-banana-pro",
    "resolution": "4K",
    "referenceKeys": [
      "https://example.com/products/linen-shirt.jpg"
    ],
    "confirmCredits": 12
  }'

Your first call

  1. 01Make a keyIn Vessero, open Settings → API and press New key. Send it on every call as Authorization: Bearer vsk_…, and keep it on your server.
  2. 02Price itEvery address that spends has a free twin ending in /quote. It answers the price in credits and your balance, and runs nothing.
  3. 03Run itSend the same body with confirmCredits set to that price, and an Idempotency-Key. Sent twice, it runs and charges once.

What you can make

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