# Crawol Substack Scraper

> Crawol Substack Scraper is a paid API for AI agents from crawol.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Fetches and extracts structured data from a Substack URL, paid per request via USDC x402

## Facts

- Endpoint: POST https://crawol.vercel.app/api/substack
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crawol-substack-scraper-069e43e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NShfAIt9kHFgU8yV1WkL8

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 crawol-substack-scraper-069e43e3 -d '<json body>'
```

Example prompt: Can you pull the content from this Substack post for me? Here's the URL: https://example.substack.com/p/my-article

## When to prefer this

Use this endpoint when you specifically need to extract content from a Substack URL and want a pay-per-use model with no subscription or API key setup. It is purpose-built for Substack pages rather than general web crawling, making it more reliable for that domain.

## Known failure modes

- Invalid or non-Substack URL provided — likely returns success: false
- Substack page is paywalled or subscriber-only — partial or no content returned
- URL is unreachable or returns a 404 — scrape fails with error
- Payment not completed via x402 — request rejected before processing
- Malformed URL input — schema validation error

## How this service works

Web scraping and search for AI agents. No auth, no subscriptions. Pay per request in USDC via x402.

## Output

Returns a JSON object with a `success` boolean and a `data` object containing the scraped Substack page content, likely including post text, metadata, author, and other structured fields extracted from the given Substack URL.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crawol-substack-scraper-069e43e3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from crawol.vercel.app](https://www.zero.xyz/host/crawol.vercel.app/llms.txt)