# Centra Pay-Per-Access Content Fetch

> Centra Pay-Per-Access Content Fetch is a paid API for AI agents from centrahub.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Fetches the full content of a premium article or piece by ID, charging $0.01 USDC per access via x402 micropayment

## Facts

- Endpoint: GET https://centrahub.vercel.app/api/content
- 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/centra-pay-per-access-content-fetch-2b660a28
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2vu0OdOfOnHkUeGPQEqZC

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 centra-pay-per-access-content-fetch-2b660a28
```

Example prompt: Can you unlock and show me the full content for Centra content ID 'article-42'? I'm happy to pay the micropayment fee to access it.

## When to prefer this

Use this endpoint when you need to retrieve the full body of a specific piece of premium content on the Centra platform and are willing to pay $0.01 USDC per access via the x402 micropayment protocol. Prefer this over the free preview endpoint when you need the complete content, not just a teaser.

## Known failure modes

- Invalid or nonexistent content ID returns an error or empty data
- Payment failure (insufficient balance or x402 protocol error) blocks content delivery
- Network/service unavailability on centrahub.vercel.app returns 5xx errors
- Missing required 'id' parameter causes a validation error
- Content ID exists but has been removed or unpublished

## How this service works

Pay once to unlock any premium content

## Output

Returns a JSON object with success boolean and a data object containing the content's id, title, fullContent (complete body text), price, and createdAt timestamp — i.e. the fully unlocked premium content after payment is processed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "id"
 ],
 "properties": {
  "id": {
   "type": "string",
   "description": "Content identifier"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "properties": {
    "id": {
     "type": "string"
    },
    "price": {
     "type": "number"
    },
    "title": {
     "type": "string"
    },
    "createdAt": {
     "type": "string"
    },
    "fullContent": {
     "type": "string"
    }
   }
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/centra-pay-per-access-content-fetch-2b660a28/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from centrahub.vercel.app](https://www.zero.xyz/host/centrahub.vercel.app/llms.txt)