# HALOWERK x402werk Facilitator Health Check

> HALOWERK x402werk Facilitator Health Check is a paid API for AI agents from x402.netzhandwerker.de, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Checks the health and availability of x402 payment facilitators (cdp, xpay, x402org) and optionally verifies chain support via CAIP-2 identifier

## Facts

- Endpoint: POST https://x402.netzhandwerker.de/facilitator/health
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-x402werk-facilitator-health-check-4112303a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dzWYDsgUkOqH0cJZmZeb1

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 halowerk-x402werk-facilitator-health-check-4112303a -d '<json body>'
```

Example prompt: Check whether the cdp and xpay x402 facilitators are healthy and confirm that Base Mainnet (eip155:8453) is supported right now.

## When to prefer this

Use this endpoint when you need to verify x402 payment facilitator availability before routing a payment, when building monitoring or alerting for x402 infrastructure, or when you need to confirm that a specific blockchain (by CAIP-2 ID) is supported by one or more facilitators. Prefer this over generic uptime checkers because it understands x402-specific facilitator semantics and chain support.

## Known failure modes

- Facilitator unreachable — returns unhealthy or error status for that facilitator key
- Invalid CAIP-2 chain identifier format — may return validation error or unsupported chain response
- Payment failure (0.003 USDC required per call) — request rejected if payment not provided
- Unknown facilitator key supplied — may be ignored or return error
- Network timeout accessing upstream facilitator endpoints

## How this service works

HALOWERK x402werk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.

## Output

Returns the health and availability status of one or more x402 payment facilitators (cdp, xpay, x402org), and optionally indicates whether a specified blockchain chain (by CAIP-2 identifier such as eip155:8453) is supported by those facilitators.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "type": "string",
   "description": "Optional: report whether this chain is supported, as a CAIP-2 identifier such as eip155:8453."
  },
  "facilitators": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 6,
   "description": "Which facilitators to check by key: cdp, xpay, x402org. Default: all known."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-x402werk-facilitator-health-check-4112303a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.netzhandwerker.de](https://www.zero.xyz/host/x402.netzhandwerker.de/llms.txt)