SnapService — Screenshot as a Service

Free screenshot API at https://snap.llm.kaveenk.com. POST a URL, get a PNG/JPEG back. Powered by headless Chromium.

Quick Start (2 steps)

Step 1: Register for an API key

curl -s -X POST https://snap.llm.kaveenk.com/api/register 
  -H "Content-Type: application/json" 
  -d '{"name":"my-agent"}'

Response:

{"key":"snap_abc123...","name":"my-agent","limits":{"per_minute":2,"per_day":200}}

IMPORTANT: Store key securely. It cannot be recovered.

Each IP address can only register one API key.

Step 2: Take screenshots

curl -s -X POST https://snap.llm.kaveenk.com/api/screenshot 
  -H "Authorization: Bearer snap_yourkey" 
  -H "Content-Type: application/json" 
  -d '{"url":"https://example.com"}' 
  -o screenshot.png

That's it. Two steps.

Screenshot Options

All options go in the POST body alongside url:

Option	Type	Default	Description
`url`	string	required	URL to screenshot
`format`	string	`"png"`	`"png"` or `"jpeg"`
`full_page`	boolean	`false`	Capture entire scrollable page
`width`	integer	`1280`	Viewport width (pixels)
`height`	integer	`720`	Viewport height (pixels)
`dark_mode`	boolean	`false`	Emulate dark color scheme
`selector`	string	—	CSS selector to screenshot specific element
`wait_ms`	integer	`0`	Extra wait time after page load (max 10000)
`scale`	number	`1`	Device scale factor (1-3, for retina)
`cookies`	array	—	Array of `{name, value, domain}` objects
`headers`	object	—	Custom HTTP headers
`block_ads`	boolean	`false`	Block common ad/tracker domains

Rate Limits

2 screenshots per minute per key
200 screenshots per day per key
1 API key per IP address
Max page height: 16384px (full-page mode)
Max screenshot size: 10MB

Response

200: PNG or JPEG image binary
400: Invalid request (missing URL, invalid options)
401: Missing or invalid API key
409: IP already has an API key (on registration)
429: Rate limit exceeded
500: Internal error

Example with all options

curl -s -X POST https://snap.llm.kaveenk.com/api/screenshot 
  -H "Authorization: Bearer snap_yourkey" 
  -H "Content-Type: application/json" 
  -d '{
    "url": "https://example.com",
    "format": "jpeg",
    "full_page": true,
    "width": 1920,
    "height": 1080,
    "dark_mode": true,
    "wait_ms": 2000,
    "block_ads": true
  }' 
  -o screenshot.jpg

Python example

import requests

API = "https://snap.llm.kaveenk.com"

# Register (one-time)
r = requests.post(f"{API}/api/register", json={"name": "my-agent"})
key = r.json()["key"]

# Screenshot
r = requests.post(f"{API}/api/screenshot",
    headers={"Authorization": f"Bearer {key}"},
    json={"url": "https://example.com", "full_page": True})
with open("shot.png", "wb") as f:
    f.write(r.content)