# FastX402 Screenshot – Web Page Screenshot Capture

> FastX402 Screenshot – Web Page Screenshot Capture is a paid API for AI agents from fastx402.tools, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-17).

Captures a screenshot of any public web page (by URL) and returns a base64-encoded PNG image, with configurable viewport width and full-page support.

## Facts

- Endpoint: GET https://fastx402.tools/screenshot?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fastx402-screenshot-web-page-screenshot-capture-a3acc8fe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5LGEtN7Ks7_VMC_dXm82J

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fastx402-screenshot-web-page-screenshot-capture-a3acc8fe
```

Example prompt: Can you take a screenshot of https://stripe.com at 1280px wide and give me the image? I want to see what it looks like right now.

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call, no-account screenshot of any public URL as a base64 PNG — especially useful for AI agents that need visual verification, link previews, or visual QA without setting up a headless browser. Prefer it over full browser automation services when you just need a single-shot image at low cost ($0.005 per call).

## Known failure modes

- Invalid or unreachable URL returns an error (non-2xx response or DNS failure)
- Width outside 320–1920 range may be rejected or clamped
- Private/intranet URLs will not be accessible from the cloud renderer
- Very large full-page captures may time out or exceed payload size limits
- Paywalled or login-gated pages will be captured in their unauthenticated state

## How this service works

146 pay-per-call tools for AI agents, from $0.001 per request in USDC on Base or Solana with x402. No account, no API key.

## Output

Returns a JSON object containing the original URL, the viewport width used, whether full-page capture was performed, the MIME type (image/png), and the screenshot as a base64-encoded PNG string ready to embed or decode.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Absolute http(s) URL of the page"
      },
      "width": {
       "type": "string",
       "description": "Viewport width in pixels, 320-1920, default 1280"
      },
      "full_page": {
       "enum": [
        "true",
        "false"
       ],
       "type": "string",
       "description": "Capture the whole scrollable page, default false"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "url": {
       "type": "string"
      },
      "width": {
       "type": "integer"
      },
      "full_page": {
       "type": "boolean"
      },
      "mime_type": {
       "type": "string"
      },
      "image_base64": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://example.com/",
  "width": 1280,
  "full_page": false,
  "mime_type": "image/png",
  "image_base64": "iVBORw0KGgoAAAANSUhEUgAABQAAAAMgCAIAAAD..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fastx402-screenshot-web-page-screenshot-capture-a3acc8fe/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fastx402.tools](https://www.zero.xyz/host/fastx402.tools/llms.txt)