# x402 Content Hub

> x402 Content Hub is a paid API for AI agents from x402hub.duckdns.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).

Returns AI-curated analysis reports on submitted topics, delivered via x402 micropayment-gated API.

## Facts

- Endpoint: POST https://x402hub.duckdns.org/x402-probe.php?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-content-hub-22b20509
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gMwjKevLrgXAkkHpfbmuC

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 x402-content-hub-22b20509 -d '<json body>'
```

Example prompt: Can you run an AI-curated analysis report on the current state of renewable energy adoption, and return it as a structured summary?

## When to prefer this

Choose this endpoint when you need a quick, AI-generated analysis or curated report on a specific topic and are willing to pay a small per-call micropayment ($0.001 USDC via x402). Best suited for lightweight, on-demand content intelligence tasks where a full LLM integration is unnecessary. Less appropriate for high-volume batch analysis or when a guaranteed SLA is required, given the DuckDNS-hosted, community-operated nature of the service.

## Known failure modes

- Payment not included or insufficient — returns 402 Payment Required
- Malformed input object — missing required 'input' or 'output' fields results in an error
- Service unavailable on DuckDNS-hosted infrastructure — intermittent 5xx errors possible
- Empty or vague input may produce low-quality or generic output
- Output format specifier not recognized — may return default format instead

## How this service works

AI-curated analysis reports via x402.

## Output

A JSON object containing an AI-curated analysis report based on the submitted input topic or text, structured according to the requested output format.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "contentType": "application/json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-content-hub-22b20509/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402hub.duckdns.org](https://www.zero.xyz/host/x402hub.duckdns.org/llms.txt)