Use Case

Screenshot API for AI Agents

Give your AI agents eyes on the web. Screenshots as structured input for LLMs, vision models, and autonomous workflows.

The Problem

AI agents can't see the web

LLMs and AI agents work with text, but the web is visual. HTML source code doesn't convey layout, broken elements, or visual context. For tasks like web research, QA, and monitoring, agents need to see what users see.

  • LLMs can't interpret raw HTML for visual understanding
  • Running headless browsers in AI pipelines is complex and slow
  • Browser automation tools are heavy for simple visual checks
  • No easy way to feed web visuals into vision model APIs
The Solution

A visual perception layer for any AI agent

One API call returns a screenshot that you can pass directly to GPT-4o, Claude, or any vision model. No browser management, no puppeteer scripts.

Step 1

Agent decides to look at a page

Your AI agent determines it needs visual context for a URL.

Step 2

Call the screenshot API

A single HTTP request returns a screenshot — no browser setup needed.

Step 3

Feed to vision model

Pass the screenshot to GPT-4o, Claude, or Gemini for visual analysis.

Code Example

Get started in minutes

A single API call is all you need.

python
import requests, base64, anthropic

# 1. Capture screenshot
screenshot = requests.get(
    "https://api.porto.dev/v1/screenshot",
    params={"url": "https://competitor.com/pricing", "width": 1280},
    headers={"Authorization": "Bearer PORTO_API_KEY"},
).content

# 2. Send to Claude for analysis
client = anthropic.Anthropic()
message = client.messages.create(
    model="claude-sonnet-4-20250514",
    max_tokens=1024,
    messages=[{
        "role": "user",
        "content": [
            {"type": "image", "source": {
                "type": "base64",
                "media_type": "image/png",
                "data": base64.b64encode(screenshot).decode(),
            }},
            {"type": "text", "text": "Analyze this pricing page."},
        ],
    }],
)

Try it in the playground

See results instantly with pre-configured defaults for this use case.

Key Features

Built for this use case

Sub-second rendering

Fast enough for real-time AI agent loops without blocking workflows.

Multiple formats

PNG for vision models, WebP for bandwidth-efficient pipelines.

Custom viewports

Simulate desktop or mobile to give agents context-appropriate views.

Block distractions

Remove ads and popups so vision models focus on actual content.

Real-World Usage

How AI teams use screenshot APIs for agents

  • Visual web research agents that browse and analyze pages
  • QA agents that verify UI renders correctly after deploys
  • Competitive intelligence agents that monitor visual changes
  • Content extraction agents that combine OCR with vision models
Pricing

Starts free. 100 API calls/month.

No credit card required. Scale up as you need with simple, predictable pricing.

Screenshot API for AI Agents | Porto