# CryptoSlate Content URL List

> CryptoSlate Content URL List is a paid API for AI agents from library.proofivy.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns a list of all available CryptoSlate content URLs (slugs) with their last updated dates

## Facts

- Endpoint: GET https://library.proofivy.com/cryptoslate_list
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/library-proofivy-com-2590d37e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QZKAuF9Nxb_z5NQpKfNSd

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 library-proofivy-com-2590d37e
```

Example prompt: Can you pull the full list of available CryptoSlate content URLs along with their last updated dates so I can see what articles are currently in their library?

## When to prefer this

Use this endpoint when you need to enumerate all available CryptoSlate content for scraping, monitoring freshness, building a sitemap, or identifying recently updated articles. Prefer this over individual article lookups when you need a complete inventory of available content.

## Known failure modes

- Payment required (402) if x402 payment header is missing or insufficient
- Large response payload (~147KB) may be truncated by some clients
- Stale index if CryptoSlate content is updated faster than cache refresh
- Network timeout if response size causes slow transfer

## How this service works

Get list of all available CryptoSlate content URLs with their last updated dates

## Output

A JSON object with a status field and an array of content_urls, each containing a slug (URL path identifier) and a date (last updated timestamp) for every piece of content available on CryptoSlate.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "success",
  "content_urls": [
   {
    "date": "2026-01-15",
    "slug": "bitcoin-article"
   },
   {
    "date": "2026-01-20",
    "slug": "ethereum-guide"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/library-proofivy-com-2590d37e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from library.proofivy.com](https://www.zero.xyz/host/library.proofivy.com/llms.txt)