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supremeai Web Page Renderer (JavaScript-Enabled Markdown Fetch)
x402
supremeai Web Page Renderer (JavaScript-Enabled Markdown Fetch) is a paid API for AI agents from agents.supremeai.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Fetches a public URL and returns its full page content as clean markdown, with optional JavaScript rendering for dynamic pages.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call tools for AI agents: x402 pre-flight checks (is this endpoint safe to pay?), web pages as clean markdown (with optional JavaScript rendering), Latin American tax-ID validation, npm/PyPI/GitHub lookups, and URL health checks. No API keys, no accounts — pay per request in USDC.
Output
Returns a JSON object with the page URL, title, format ('markdown'), HTTP status code, the full page content as clean markdown text, a 'rendered' boolean indicating if JavaScript was executed, a 'truncated' boolean if content was cut, and a word_count integer.
Example use cases
Summarizing a news article for research
“Grab the content of https://www.reuters.com/technology/ai-regulation-2025 as markdown so I can summarize it — cap it at 80000 characters.”
Reading a JavaScript-rendered product page
“Fetch https://stripe.com/pricing and extract all the readable text as markdown — it uses JavaScript so make sure to render it fully.”
Pulling documentation for an agent to reference
“Get the content of https://docs.openai.com/api-reference as clean markdown, limit it to 50000 characters, so I can answer questions about the API.”
Technical details
Endpoint
POSThttps://agents.supremeai.ca/v1/read/render?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need JavaScript-rendered page content returned as clean, LLM-friendly markdown from any public URL — especially for dynamic single-page apps or sites that don't serve full content in plain HTML. Prefer this over static HTML fetchers when JavaScript execution matters. It requires no API key, charges per call in USDC, and is ideal for one-off agent lookups without subscription overhead.
Side effects
- Non-public or paywalled URLs return an error or empty content
- JavaScript-heavy pages may time out if rendering takes too long
- URLs that redirect to login walls return authentication page content instead of target
- Content exceeding max 200000 char cap is truncated with truncated:true
- Invalid or malformed URLs return a 4xx error
- Some sites block headless browsers, resulting in partial or blocked content
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | public http(s) URL |
| max_chars | integer | content length cap (default 50000, max 200000) |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://en.wikipedia.org/wiki/HTTP_402",
"title": "HTTP 402",
"format": "markdown",
"status": 200,
"content": "# HTTP 402\n\nHTTP 402 Payment Required is ...",
"rendered": true,
"truncated": false,
"word_count": 812
}
}Tags
x402
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