# PapaCasper URL to Markdown

> PapaCasper URL to Markdown is a paid API for AI agents from papacasper.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Fetches a web page by URL and returns its content converted to Markdown format

## Facts

- Endpoint: POST https://papacasper.com/mcp/pay/url_to_markdown
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/papacasper-url-to-markdown-c5abd0a8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CW89vdCpfuauHVEImkbHD

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 papacasper-url-to-markdown-c5abd0a8 -d '<json body>'
```

Example prompt: Can you fetch the page at https://example.com/blog/my-post and give me the content as markdown so I can paste it into my notes?

## When to prefer this

Choose this endpoint when you need a quick, low-cost ($0.0001 USDC) single-URL fetch-and-convert operation and want Markdown output ready for LLM ingestion or human reading. Ideal for agents that need to read web pages as part of a pipeline without managing their own browser or scraping infrastructure. Prefer this over full crawlers when you only need one specific page rather than an entire site.

## Known failure modes

- URL is unreachable or returns a non-200 HTTP status — response may be empty or contain an error message
- URL points to a non-HTML resource (PDF, image, binary) — markdown conversion may fail or return garbled content
- Page requires JavaScript rendering — server-side fetch may miss dynamically loaded content
- Rate limiting or bot-blocking by the target site — endpoint may return incomplete content
- Malformed or missing URL parameter — request fails with validation error

## How this service works

A hosted MCP server exposing utility tools any AI agent can call over HTTP — page-to-markdown, SEO audits, robots/sitemap checks, and more.

## Output

A JSON object containing the fetched web page's content rendered as Markdown text, suitable for further processing, reading, or ingestion by an AI agent.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "The URL to fetch"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/papacasper-url-to-markdown-c5abd0a8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from papacasper.com](https://www.zero.xyz/host/papacasper.com/llms.txt)