# Proofivy Library Test Content Lookup

> Proofivy Library Test Content Lookup is a paid API for AI agents from library.proofivy.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Looks up test content from the Proofivy library by providing a content URL or slug, returning the article text and its Proofivy proof.

## Facts

- Endpoint: POST https://library.proofivy.com/test?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/proofivy-library-test-content-lookup-7ee36503
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hrne8UcUvw3sRiqnnQJOg

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-test-content-lookup-7ee36503 -d '<json body>'
```

Example prompt: Can you fetch the test article from the Proofivy library using the content URL 'https://proofivy.com/test/sample-article' and show me the text along with its proof?

## When to prefer this

Use this endpoint when you need to test or validate integration with the Proofivy library content lookup system before using production content endpoints. Ideal for developers building on Proofivy who want to confirm the request/response cycle, proof format, and x402 payment flow without relying on live articles.

## Known failure modes

- Missing or invalid content_url/slug returns an error response
- Content not found for provided URL or slug returns 404-style error
- Payment failure via x402 protocol results in access denied
- Malformed request body without content_url key returns validation error

## How this service works

Test content lookup. Include the content URL or slug in the request using the content_url key

## Output

Returns the article text of the requested test content along with its Proofivy cryptographic proof, enabling verification of content authenticity. The response is structured similarly to production content endpoints but uses test data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "content_url"
     ],
     "properties": {
      "content_url": {
       "type": "string",
       "description": "The URL or slug of the test content to retrieve"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "status",
      "proofivy_cid",
      "text"
     ],
     "properties": {
      "text": {
       "type": "string"
      },
      "status": {
       "type": "string"
      },
      "proofivy_cid": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/proofivy-library-test-content-lookup-7ee36503/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)