# Proofivy Library Server – TidBITS Article Fetch

> Proofivy Library Server – TidBITS Article Fetch is a paid API for AI agents from library.proofivy.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Fetches the full text of a TidBITS article by URL or slug, returning the content along with a cryptographic Proofivy content ID (CID) as a verifiable commitment to the exact bytes served.

## Facts

- Endpoint: POST https://library.proofivy.com/tidbits
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/proofivy-library-server-tidbits-article-fetch-4de20555
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ylZTJ_oBpy3Me1_st25sc

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 proofivy-library-server-tidbits-article-fetch-4de20555 -d '<json body>'
```

Example prompt: Can you fetch me the full text of this TidBITS article — https://tidbits.com/2024/05/01/apple-releases-ios-17-5/ — and get its Proofivy CID so I can verify the content is authentic?

## When to prefer this

Choose this endpoint when you need the full text of a TidBITS article AND require a cryptographic proof (CID) that the content has not been altered — ideal for archival, audit, or AI pipelines where content provenance matters. Prefer it over generic web scrapers when verifiability is a requirement, or when TidBITS content is specifically needed rather than general-purpose web content.

## Known failure modes

- Article URL or slug not found in the Proofivy library — returns error or empty content
- Payment via x402 fails or is insufficient — request is rejected before content is served
- Invalid or malformed content_url input — may return an error or unexpected result
- TidBITS article not yet indexed by Proofivy — content unavailable
- Network or upstream library server error — non-200 response

## How this service works

Content fetch API. Pay per request via x402 and receive the article text together with its Proofivy content-id (CID), a cryptographic commitment to the exact bytes returned.

## Output

A JSON object containing the full text of the requested TidBITS article, a status field indicating success or failure, and a Proofivy CID (a cryptographic hash commitment of the form bafkrei...) that uniquely and verifiably identifies the exact bytes returned.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "content_url": {
   "type": "string",
   "description": "The URL or slug of the TidBITS article to retrieve"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "text": "The TidBITS article content...",
  "status": "success",
  "proofivy_cid": "bafkreiexample..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/proofivy-library-server-tidbits-article-fetch-4de20555/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)