Free Screenshot API Comparison 2026

// Get API key
const { key } = await fetch('https://api-catalog-tau.vercel.app/api/keys/create', {
  method: 'POST'
}).then(r => r.json());

// Capture screenshot
const url = 'https://github.com';
const res = await fetch(
  `https://api-catalog-tau.vercel.app/v1/agent-screenshot/api/screenshot?url=${encodeURIComponent(url)}&viewport=desktop`,
  { headers: { Authorization: `Bearer ${key}` } }
);
const buffer = Buffer.from(await res.arrayBuffer());
fs.writeFileSync('screenshot.png', buffer);
console.log('Saved screenshot.png', buffer.length, 'bytes');

import requests

# Get API key
key = requests.post("https://api-catalog-tau.vercel.app/api/keys/create").json()["key"]

# Capture screenshot
url = "https://github.com"
resp = requests.get(
    f"https://api-catalog-tau.vercel.app/v1/agent-screenshot/api/screenshot",
    params={"url": url, "viewport": "desktop"},
    headers={"Authorization": f"Bearer {key}"}
)

with open("screenshot.png", "wb") as f:
    f.write(resp.content)
print(f"Saved screenshot.png ({len(resp.content)} bytes)")

package main

import (
    "fmt"
    "io"
    "net/http"
    "os"
)

func main() {
    // Capture screenshot
    apiURL := "https://api-catalog-tau.vercel.app/v1/agent-screenshot/api/screenshot?url=https://github.com&viewport=desktop"
    req, _ := http.NewRequest("GET", apiURL, nil)
    req.Header.Set("Authorization", "Bearer YOUR_KEY")

    resp, err := http.DefaultClient.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    f, _ := os.Create("screenshot.png")
    defer f.Close()
    n, _ := io.Copy(f, resp.Body)
    fmt.Printf("Saved screenshot.png (%d bytes)\n", n)
}