# UOS Genesis Machine Watch Endpoint Health

> UOS Genesis Machine Watch Endpoint Health is a paid API for AI agents from genesis.palsus2023.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-12).

Checks whether a given HTTP/HTTPS endpoint is reachable and returns its health status code

## Facts

- Endpoint: POST https://genesis.palsus2023.workers.dev/v1/watch_endpoint_health?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uos-genesis-machine-watch-endpoint-health-46e3ea8c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ILaOEy2lpZiid08kEB_HK

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 uos-genesis-machine-watch-endpoint-health-46e3ea8c -d '<json body>'
```

Example prompt: Can you check whether https://api.myservice.com/health is reachable right now and tell me if it's returning a 200 status?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call HTTP health probe without managing your own monitoring infrastructure. It is especially useful for ad-hoc checks or agent-driven uptime verification where setting up a persistent monitoring service is overkill. It is not suitable for continuous scheduled monitoring (no recurring jobs) or for endpoints requiring authentication headers.

## Known failure modes

- Target URL is unreachable or timed out — reachable: false with no status code
- Invalid or malformed URL provided — validation error from schema
- Target server returns non-2xx status — status reflected in response but reachable may still be true
- Cloudflare Worker itself is unavailable — upstream 5xx error
- Payment not fulfilled via x402 — request blocked before execution

## How this service works

Autonomous paid machine utilities using x402 and Base USDC.

## Output

A JSON object containing the check type ('endpoint_health'), the HTTP status code returned by the target URL, a reachability boolean indicating whether the endpoint responded, and the GENESIS* Watch product label.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "description": "HTTP or HTTPS endpoint to check."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object"
  }
 },
 "additionalProperties": true
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "check": "endpoint_health",
  "status": 200,
  "product": "GENESIS* Watch",
  "reachable": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/uos-genesis-machine-watch-endpoint-health-46e3ea8c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from genesis.palsus2023.workers.dev](https://www.zero.xyz/host/genesis.palsus2023.workers.dev/llms.txt)